Merge pull request #1534 from trheyi/main

feat(assistant): add hot-reload functionality for assistants and enhance gRPC metadata handling

.github/workflows/create-release.yml

@@ -0,0 +1,25 @@
+name: Create Release
+
+on:
+  push:
+    tags:
+      - "v*"
+
+permissions:
+  contents: write
+
+jobs:
+  create:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Create Draft Release
+        env:
+          GH_TOKEN: ${{ github.token }}
+        run: |
+          TAG="${GITHUB_REF#refs/tags/}"
+          VERSION="${TAG#v}"
+          gh release create "$TAG" \
+            --repo "$GITHUB_REPOSITORY" \
+            --title "Yao v${VERSION}" \
+            --generate-notes \
+            --draft

.github/workflows/notarize-macos.yml

@@ -1,23 +1,77 @@
 name: Notarize macOS
 
 on:
+  workflow_run:
+    workflows: ["Release macOS"]
+    types: [completed]
   workflow_dispatch:
     inputs:
-      run_id:
-        description: "Release macOS workflow run ID (to download artifacts from)"
-        required: true
       version:
-        description: "Version used in the release build (e.g. 1.0.0 or 1.0.0-alpha)"
-        required: true
+        description: "Version (auto-detected from latest release if empty)"
+        required: false
+      run_id:
+        description: "Release macOS workflow run ID (auto-detected if empty)"
+        required: false
 
 permissions:
   contents: write
+  actions: write
+
+concurrency:
+  group: notarize-${{ github.event.workflow_run.head_branch || github.run_id }}
+  cancel-in-progress: true
 
 jobs:
+  # ===================================================================
+  # Resolve version + macOS build run_id automatically
+  # ===================================================================
+  resolve:
+    runs-on: ubuntu-latest
+    if: >
+      github.event_name == 'workflow_dispatch' ||
+      (github.event.workflow_run.conclusion == 'success' &&
+       startsWith(github.event.workflow_run.head_branch, 'v'))
+    outputs:
+      version: ${{ steps.resolve.outputs.version }}
+      run_id: ${{ steps.resolve.outputs.run_id }}
+    steps:
+      - name: Resolve version and run_id
+        id: resolve
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: |
+          if [ "${{ github.event_name }}" = "workflow_dispatch" ]; then
+            VERSION="${{ github.event.inputs.version }}"
+            RUN_ID="${{ github.event.inputs.run_id }}"
+            if [ -z "$VERSION" ]; then
+              TAG=$(gh release view --repo "$GITHUB_REPOSITORY" --json tagName -q '.tagName')
+              VERSION="${TAG#v}"
+            fi
+            if [ -z "$RUN_ID" ]; then
+              RUN_ID=$(gh run list --repo "$GITHUB_REPOSITORY" \
+                --workflow="Release macOS" --branch="v${VERSION}" --limit=1 \
+                --json databaseId,conclusion --jq '.[] | select(.conclusion=="success") | .databaseId')
+            fi
+          else
+            TAG="${{ github.event.workflow_run.head_branch }}"
+            VERSION="${TAG#v}"
+            RUN_ID="${{ github.event.workflow_run.id }}"
+          fi
+
+          if [ -z "$VERSION" ] || [ -z "$RUN_ID" ]; then
+            echo "::error::Failed to resolve version='${VERSION}' run_id='${RUN_ID}'"
+            exit 1
+          fi
+
+          echo "version=${VERSION}" >> $GITHUB_OUTPUT
+          echo "run_id=${RUN_ID}" >> $GITHUB_OUTPUT
+          echo "Resolved: version=${VERSION} run_id=${RUN_ID}"
+
   # ===================================================================
   # Notarize Yao binaries (arm64 + amd64)
   # ===================================================================
   notarize:
+    needs: resolve
     runs-on: macos-latest
     strategy:
       matrix:
@@ -28,7 +82,7 @@ jobs:
         with:
           name: yao-darwin-${{ matrix.arch }}
           path: bin
-          run-id: ${{ github.event.inputs.run_id }}
+          run-id: ${{ needs.resolve.outputs.run_id }}
           github-token: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Install Certificates
@@ -86,3 +140,72 @@ jobs:
             exit 1
           fi
           echo "Yao ${{ matrix.arch }} notarization accepted."
+
+  # ===================================================================
+  # After both architectures finish: wait for Linux R2, then trigger CDN
+  # ===================================================================
+  finalize:
+    needs: [resolve, notarize]
+    runs-on: ubuntu-latest
+    if: success()
+    env:
+      AWS_ACCESS_KEY_ID: ${{ secrets.R2_ACCESS_KEY_ID }}
+      AWS_SECRET_ACCESS_KEY: ${{ secrets.R2_SECRET_ACCESS_KEY }}
+      R2_ENDPOINTS: ${{ secrets.R2_ENDPOINTS }}
+      R2_BUCKET: ${{ secrets.R2_BUCKET || 'releases' }}
+    steps:
+      - name: Checkout (for gh CLI context)
+        uses: actions/checkout@v4
+        with:
+          sparse-checkout: .github
+
+      - name: Configure AWS CLI
+        run: |
+          aws configure set default.region us-east-1
+          aws configure set default.s3.signature_version s3v4
+
+      - name: Wait for all platform assets on R2
+        run: |
+          VERSION="${{ needs.resolve.outputs.version }}"
+          PREFIX="yao/${VERSION}"
+
+          PLATFORMS=(
+            "darwin-arm64"
+            "darwin-amd64"
+            "linux-amd64"
+            "linux-arm64"
+          )
+
+          for ATTEMPT in $(seq 1 30); do
+            MISSING=0
+            for P in "${PLATFORMS[@]}"; do
+              KEY="${PREFIX}/yao-${VERSION}-${P}"
+              if ! aws s3 ls "s3://${R2_BUCKET}/${KEY}" --endpoint-url "$R2_ENDPOINTS" >/dev/null 2>&1; then
+                MISSING=$((MISSING+1))
+              fi
+              if ! aws s3 ls "s3://${R2_BUCKET}/${KEY}.sha256" --endpoint-url "$R2_ENDPOINTS" >/dev/null 2>&1; then
+                MISSING=$((MISSING+1))
+              fi
+            done
+
+            if [ "$MISSING" -eq 0 ]; then
+              echo "All 4 platform assets verified on R2."
+              exit 0
+            fi
+
+            echo "Attempt $ATTEMPT: $MISSING asset(s) still missing, waiting 30s..."
+            sleep 30
+          done
+
+          echo "::error::Timed out waiting for all platform assets on R2."
+          exit 1
+
+      - name: Trigger CDN latest.json update
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: |
+          VERSION="${{ needs.resolve.outputs.version }}"
+          gh workflow run update-cdn-latest.yml \
+            -f version="${VERSION}" \
+            -f mark_latest="true"
+          echo "Triggered update-cdn-latest.yml for ${VERSION}"

.github/workflows/release-linux.yml

@@ -1,7 +1,6 @@
 name: Release Linux
 
 on:
-  workflow_dispatch:
   push:
     tags:
       - "v*"
@@ -20,20 +19,7 @@ jobs:
     runs-on: ubuntu-latest
     container:
       image: yaoapp/yao-build:1.0.0
-    env:
-      CF_ACCESS_KEY_ID: ${{ secrets.CF_ACCESS_KEY_ID }}
-      CF_SECRET_ACCESS_KEY: ${{ secrets.CF_SECRET_ACCESS_KEY }}
-      R2_BUCKET: ${{ secrets.R2_BUCKET }}
-      R2_ACCOUNT_ID: ${{ secrets.R2_ACCOUNT_ID }}
     steps:
-      - name: Configure R2 For Cloudflare
-        run: |
-          aws configure set aws_access_key_id $CF_ACCESS_KEY_ID
-          aws configure set aws_secret_access_key $CF_SECRET_ACCESS_KEY
-          aws configure set default.region us-east-1
-          aws configure set default.s3.signature_version s3v4
-          aws configure set default.s3.endpoint_url https://$R2_ACCOUNT_ID.r2.cloudflarestorage.com
-
       - name: Build
         run: |
           export PATH=$PATH:/github/home/go/bin
@@ -72,13 +58,6 @@ jobs:
           mv /app/yao/dist/release/* /data/
           ls -l /data
 
-      - name: Push To R2
-        run: |
-          for file in /data/*; do
-            aws s3 cp "$file" s3://$R2_BUCKET/archives/ \
-              --endpoint-url https://$R2_ACCOUNT_ID.r2.cloudflarestorage.com
-          done
-
       - name: Upload Artifact
         uses: actions/upload-artifact@v4
         with:
@@ -106,6 +85,27 @@ jobs:
           echo "version=${VERSION}" >> $GITHUB_OUTPUT
           echo "VERSION=${VERSION}"
 
+      - name: Download Linux Artifacts
+        uses: actions/download-artifact@v4
+        with:
+          name: yao-linux
+          path: artifacts
+
+      - name: Prepare Docker Contexts
+        run: |
+          VERSION="${{ steps.version.outputs.version }}"
+          ls -la artifacts/
+
+          # Development image uses dev (unstripped) binaries
+          cp "artifacts/yao-${VERSION}-linux-amd64" docker/development/yao-amd64
+          cp "artifacts/yao-${VERSION}-linux-arm64" docker/development/yao-arm64
+          chmod +x docker/development/yao-*
+
+          # Production image uses prod (stripped) binaries
+          cp "artifacts/yao-${VERSION}-linux-amd64-prod" docker/production/yao-amd64
+          cp "artifacts/yao-${VERSION}-linux-arm64-prod" docker/production/yao-arm64
+          chmod +x docker/production/yao-*
+
       - name: Set up QEMU
         uses: docker/setup-qemu-action@v3
 
@@ -123,8 +123,6 @@ jobs:
         with:
           context: ./docker/development
           platforms: linux/amd64,linux/arm64
-          build-args: |
-            VERSION=${{ steps.version.outputs.version }}
           push: true
           tags: |
             ${{ env.IMAGE_NAME }}:${{ steps.version.outputs.version }}-dev
@@ -135,9 +133,113 @@ jobs:
         with:
           context: ./docker/production
           platforms: linux/amd64,linux/arm64
-          build-args: |
-            VERSION=${{ steps.version.outputs.version }}
           push: true
           tags: |
             ${{ env.IMAGE_NAME }}:${{ steps.version.outputs.version }}
             ${{ env.IMAGE_NAME }}:latest
+
+  # ===================================================================
+  # GitHub Release + R2 Upload (Linux binaries)
+  # ===================================================================
+  release:
+    needs: build
+    if: startsWith(github.ref, 'refs/tags/v')
+    runs-on: ubuntu-latest
+    steps:
+      - name: Get Version
+        id: version
+        run: |
+          if [[ "$GITHUB_REF" != refs/tags/v* ]]; then
+            echo "::error::This workflow requires a tag. Got: $GITHUB_REF"
+            exit 1
+          fi
+          VERSION="${GITHUB_REF#refs/tags/v}"
+          TAG="${GITHUB_REF#refs/tags/}"
+          echo "version=${VERSION}" >> $GITHUB_OUTPUT
+          echo "tag=${TAG}" >> $GITHUB_OUTPUT
+
+      - name: Download Linux Artifacts
+        uses: actions/download-artifact@v4
+        with:
+          name: yao-linux
+          path: artifacts
+
+      - name: Prepare Release Files
+        run: |
+          VERSION="${{ steps.version.outputs.version }}"
+          mkdir -p release
+          cp "artifacts/yao-${VERSION}-linux-amd64-prod" "release/yao-${VERSION}-linux-amd64"
+          cp "artifacts/yao-${VERSION}-linux-arm64-prod" "release/yao-${VERSION}-linux-arm64"
+          cp "artifacts/yao-${VERSION}-linux-amd64" "release/yao-${VERSION}-linux-amd64-dev"
+          cp "artifacts/yao-${VERSION}-linux-arm64" "release/yao-${VERSION}-linux-arm64-dev"
+          chmod +x release/yao-*
+
+          for ARCH in amd64 arm64; do
+            sha256sum "release/yao-${VERSION}-linux-${ARCH}" | awk '{print $1}' > "release/yao-linux-${ARCH}-prod.sha256"
+            sha256sum "release/yao-${VERSION}-linux-${ARCH}-dev" | awk '{print $1}' > "release/yao-linux-${ARCH}-dev.sha256"
+          done
+          ls -lh release/
+
+      - name: Wait for Draft Release
+        env:
+          GH_TOKEN: ${{ github.token }}
+        run: |
+          TAG="${{ steps.version.outputs.tag }}"
+          for i in $(seq 1 30); do
+            if gh release view "$TAG" --repo "$GITHUB_REPOSITORY" &>/dev/null; then
+              echo "Draft release found for $TAG."
+              exit 0
+            fi
+            echo "Waiting for draft release... ($i/30)"
+            sleep 10
+          done
+          echo "::error::Timed out waiting for draft release $TAG"
+          exit 1
+
+      - name: Upload Assets to GitHub Release
+        env:
+          GH_TOKEN: ${{ github.token }}
+        run: |
+          TAG="${{ steps.version.outputs.tag }}"
+          gh release upload "$TAG" release/* --repo "$GITHUB_REPOSITORY" --clobber
+
+      - name: Publish Release if Complete
+        env:
+          GH_TOKEN: ${{ github.token }}
+        run: |
+          TAG="${{ steps.version.outputs.tag }}"
+          ASSET_COUNT=$(gh release view "$TAG" --repo "$GITHUB_REPOSITORY" --json assets --jq '.assets | length')
+          echo "Current assets: $ASSET_COUNT / 16"
+          if [ "$ASSET_COUNT" -ge 16 ]; then
+            echo "All assets present, publishing release..."
+            gh release edit "$TAG" --repo "$GITHUB_REPOSITORY" --draft=false --latest
+          else
+            echo "Assets incomplete ($ASSET_COUNT/16), waiting for other workflow to publish."
+          fi
+
+      - name: Upload Linux binaries to R2
+        env:
+          AWS_ACCESS_KEY_ID: ${{ secrets.R2_ACCESS_KEY_ID }}
+          AWS_SECRET_ACCESS_KEY: ${{ secrets.R2_SECRET_ACCESS_KEY }}
+          R2_ENDPOINTS: ${{ secrets.R2_ENDPOINTS }}
+          R2_BUCKET: ${{ secrets.R2_BUCKET || 'releases' }}
+        run: |
+          aws configure set default.region us-east-1
+          aws configure set default.s3.signature_version s3v4
+
+          VERSION="${{ steps.version.outputs.version }}"
+          PREFIX="yao/${VERSION}"
+
+          for PLATFORM in linux-amd64 linux-arm64; do
+            FILE="release/yao-${VERSION}-${PLATFORM}"
+            NAME="yao-${VERSION}-${PLATFORM}"
+            sha256sum "$FILE" | awk '{print $1}' > "/tmp/${NAME}.sha256"
+
+            aws s3 cp "$FILE" "s3://${R2_BUCKET}/${PREFIX}/${NAME}" \
+              --endpoint-url "$R2_ENDPOINTS" \
+              --content-type "application/octet-stream"
+            aws s3 cp "/tmp/${NAME}.sha256" "s3://${R2_BUCKET}/${PREFIX}/${NAME}.sha256" \
+              --endpoint-url "$R2_ENDPOINTS" \
+              --content-type "text/plain"
+            echo "Uploaded: ${NAME} + ${NAME}.sha256"
+          done

.github/workflows/release-macos.yml

@@ -1,7 +1,6 @@
 name: Release macOS
 
 on:
-  workflow_dispatch:
   push:
     tags:
       - "v*"
@@ -217,3 +216,129 @@ jobs:
         with:
           name: yao-darwin-checksums
           path: /tmp/checksums/*.sha256
+
+  # ===================================================================
+  # GitHub Release + R2 Upload (macOS binaries)
+  # ===================================================================
+  release:
+    needs: build
+    if: startsWith(github.ref, 'refs/tags/v')
+    runs-on: ubuntu-latest
+    steps:
+      - name: Get Version
+        id: version
+        run: |
+          if [[ "$GITHUB_REF" != refs/tags/v* ]]; then
+            echo "::error::This workflow requires a tag. Got: $GITHUB_REF"
+            exit 1
+          fi
+          VERSION="${GITHUB_REF#refs/tags/v}"
+          TAG="${GITHUB_REF#refs/tags/}"
+          echo "version=${VERSION}" >> $GITHUB_OUTPUT
+          echo "tag=${TAG}" >> $GITHUB_OUTPUT
+
+      - name: Download macOS Artifacts
+        uses: actions/download-artifact@v4
+        with:
+          name: yao-darwin-arm64
+          path: artifacts/arm64-prod
+
+      - name: Download arm64 Dev
+        uses: actions/download-artifact@v4
+        with:
+          name: yao-darwin-arm64-dev
+          path: artifacts/arm64-dev
+
+      - name: Download amd64 Prod
+        uses: actions/download-artifact@v4
+        with:
+          name: yao-darwin-amd64
+          path: artifacts/amd64-prod
+
+      - name: Download amd64 Dev
+        uses: actions/download-artifact@v4
+        with:
+          name: yao-darwin-amd64-dev
+          path: artifacts/amd64-dev
+
+      - name: Download Checksums
+        uses: actions/download-artifact@v4
+        with:
+          name: yao-darwin-checksums
+          path: artifacts/checksums
+
+      - name: Prepare Release Files
+        run: |
+          VERSION="${{ steps.version.outputs.version }}"
+          mkdir -p release
+          cp artifacts/arm64-prod/yao "release/yao-${VERSION}-darwin-arm64"
+          cp artifacts/amd64-prod/yao "release/yao-${VERSION}-darwin-amd64"
+          cp artifacts/arm64-dev/yao "release/yao-${VERSION}-darwin-arm64-dev"
+          cp artifacts/amd64-dev/yao "release/yao-${VERSION}-darwin-amd64-dev"
+          cp artifacts/checksums/*.sha256 release/ 2>/dev/null || true
+          chmod +x release/yao-*
+          ls -lh release/
+
+      - name: Wait for Draft Release
+        env:
+          GH_TOKEN: ${{ github.token }}
+        run: |
+          TAG="${{ steps.version.outputs.tag }}"
+          for i in $(seq 1 30); do
+            if gh release view "$TAG" --repo "$GITHUB_REPOSITORY" &>/dev/null; then
+              echo "Draft release found for $TAG."
+              exit 0
+            fi
+            echo "Waiting for draft release... ($i/30)"
+            sleep 10
+          done
+          echo "::error::Timed out waiting for draft release $TAG"
+          exit 1
+
+      - name: Upload Assets to GitHub Release
+        env:
+          GH_TOKEN: ${{ github.token }}
+        run: |
+          TAG="${{ steps.version.outputs.tag }}"
+          gh release upload "$TAG" release/* --repo "$GITHUB_REPOSITORY" --clobber
+
+      - name: Publish Release if Complete
+        env:
+          GH_TOKEN: ${{ github.token }}
+        run: |
+          TAG="${{ steps.version.outputs.tag }}"
+          ASSET_COUNT=$(gh release view "$TAG" --repo "$GITHUB_REPOSITORY" --json assets --jq '.assets | length')
+          echo "Current assets: $ASSET_COUNT / 16"
+          if [ "$ASSET_COUNT" -ge 16 ]; then
+            echo "All assets present, publishing release..."
+            gh release edit "$TAG" --repo "$GITHUB_REPOSITORY" --draft=false --latest
+          else
+            echo "Assets incomplete ($ASSET_COUNT/16), waiting for other workflow to publish."
+          fi
+
+      - name: Upload macOS binaries to R2
+        env:
+          AWS_ACCESS_KEY_ID: ${{ secrets.R2_ACCESS_KEY_ID }}
+          AWS_SECRET_ACCESS_KEY: ${{ secrets.R2_SECRET_ACCESS_KEY }}
+          R2_ENDPOINTS: ${{ secrets.R2_ENDPOINTS }}
+          R2_BUCKET: ${{ secrets.R2_BUCKET || 'releases' }}
+        run: |
+          aws configure set default.region us-east-1
+          aws configure set default.s3.signature_version s3v4
+
+          VERSION="${{ steps.version.outputs.version }}"
+          PREFIX="yao/${VERSION}"
+
+          for PLATFORM in darwin-arm64 darwin-amd64; do
+            FILE="release/yao-${VERSION}-${PLATFORM}"
+            NAME="yao-${VERSION}-${PLATFORM}"
+            sha256sum "$FILE" | awk '{print $1}' > "/tmp/${NAME}.sha256"
+
+            aws s3 cp "$FILE" "s3://${R2_BUCKET}/${PREFIX}/${NAME}" \
+              --endpoint-url "$R2_ENDPOINTS" \
+              --content-type "application/octet-stream"
+            aws s3 cp "/tmp/${NAME}.sha256" "s3://${R2_BUCKET}/${PREFIX}/${NAME}.sha256" \
+              --endpoint-url "$R2_ENDPOINTS" \
+              --content-type "text/plain"
+            echo "Uploaded: ${NAME} + ${NAME}.sha256"
+          done

.github/workflows/release.yml

@@ -1,114 +0,0 @@
-name: Release
-
-on:
-  workflow_run:
-    workflows: ["Release Linux", "Release macOS"]
-    types:
-      - completed
-
-permissions:
-  contents: write
-
-jobs:
-  # ===================================================================
-  # Wait for both workflows to succeed, then create a unified release
-  # ===================================================================
-  release:
-    runs-on: ubuntu-latest
-    if: >
-      github.event.workflow_run.conclusion == 'success' &&
-      startsWith(github.event.workflow_run.head_branch, 'v')
-    steps:
-      - name: Checkout Code
-        uses: actions/checkout@v4
-
-      - name: Get Version
-        id: version
-        run: |
-          TAG="${{ github.event.workflow_run.head_branch }}"
-          VERSION="${TAG#v}"
-          echo "version=${VERSION}" >> $GITHUB_OUTPUT
-          echo "tag=${TAG}" >> $GITHUB_OUTPUT
-          echo "TAG=${TAG} VERSION=${VERSION}"
-
-      - name: Wait for Both Workflows
-        env:
-          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-        run: |
-          TAG="${{ steps.version.outputs.tag }}"
-          echo "Waiting for both Release Linux and Release macOS to complete for $TAG..."
-
-          for i in $(seq 1 60); do
-            LINUX_STATUS=$(gh run list --workflow="Release Linux" --branch="$TAG" --limit=1 --json conclusion --jq '.[0].conclusion // "pending"')
-            MACOS_STATUS=$(gh run list --workflow="Release macOS" --branch="$TAG" --limit=1 --json conclusion --jq '.[0].conclusion // "pending"')
-
-            echo "Attempt $i: Linux=$LINUX_STATUS macOS=$MACOS_STATUS"
-
-            if [ "$LINUX_STATUS" = "success" ] && [ "$MACOS_STATUS" = "success" ]; then
-              echo "Both workflows completed successfully."
-              exit 0
-            fi
-
-            if [ "$LINUX_STATUS" = "failure" ] || [ "$MACOS_STATUS" = "failure" ]; then
-              echo "::error::One or both workflows failed (Linux=$LINUX_STATUS macOS=$MACOS_STATUS)"
-              exit 1
-            fi
-
-            sleep 60
-          done
-
-          echo "::error::Timed out waiting for workflows"
-          exit 1
-
-      - name: Download Linux Artifacts
-        env:
-          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-        run: |
-          TAG="${{ steps.version.outputs.tag }}"
-          LINUX_RUN_ID=$(gh run list --workflow="Release Linux" --branch="$TAG" --limit=1 --json databaseId --jq '.[0].databaseId')
-          mkdir -p dist/linux
-          gh run download "$LINUX_RUN_ID" --name yao-linux --dir dist/linux
-
-      - name: Download macOS Artifacts
-        env:
-          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-        run: |
-          TAG="${{ steps.version.outputs.tag }}"
-          MACOS_RUN_ID=$(gh run list --workflow="Release macOS" --branch="$TAG" --limit=1 --json databaseId --jq '.[0].databaseId')
-          mkdir -p dist/macos
-          gh run download "$MACOS_RUN_ID" --name yao-darwin-arm64 --dir dist/macos/arm64-prod
-          gh run download "$MACOS_RUN_ID" --name yao-darwin-arm64-dev --dir dist/macos/arm64-dev
-          gh run download "$MACOS_RUN_ID" --name yao-darwin-amd64 --dir dist/macos/amd64-prod
-          gh run download "$MACOS_RUN_ID" --name yao-darwin-amd64-dev --dir dist/macos/amd64-dev
-          gh run download "$MACOS_RUN_ID" --name yao-darwin-checksums --dir dist/macos/checksums
-
-      - name: Prepare Release Files
-        run: |
-          VERSION="${{ steps.version.outputs.version }}"
-          mkdir -p release
-
-          # Linux artifacts (already named correctly from build.sh)
-          cp dist/linux/* release/ 2>/dev/null || true
-
-          # macOS prod binaries
-          cp dist/macos/arm64-prod/yao "release/yao-${VERSION}-darwin-arm64"
-          cp dist/macos/amd64-prod/yao "release/yao-${VERSION}-darwin-amd64"
-
-          # macOS dev binaries
-          cp dist/macos/arm64-dev/yao "release/yao-${VERSION}-darwin-arm64-dev"
-          cp dist/macos/amd64-dev/yao "release/yao-${VERSION}-darwin-amd64-dev"
-
-          # Checksums
-          cp dist/macos/checksums/*.sha256 release/ 2>/dev/null || true
-
-          chmod +x release/yao-* 2>/dev/null || true
-          echo "=== Release files ==="
-          ls -lh release/
-
-      - name: Create GitHub Release
-        uses: softprops/action-gh-release@v2
-        with:
-          tag_name: ${{ steps.version.outputs.tag }}
-          name: Yao v${{ steps.version.outputs.version }}
-          files: release/*
-          generate_release_notes: true

.github/workflows/update-cdn-latest.yml

@@ -0,0 +1,121 @@
+name: Update CDN latest.json
+
+# Assembles yao/latest.json after all platform binaries are on R2.
+#
+# Normally triggered automatically by notarize-macos.yml's finalize job after
+# notarization completes. Can also be triggered manually as a fallback.
+#
+# Prerequisites: release-linux.yml and release-macos.yml must have uploaded
+# all 4 platform binaries to R2.
+
+on:
+  workflow_dispatch:
+    inputs:
+      version:
+        description: "Engine version to publish (e.g. 1.0.0 or 1.0.0-alpha)"
+        required: true
+      mark_latest:
+        description: "Also update yao/latest.json (set false for pre-releases you want on CDN but not as latest)"
+        required: false
+        default: "true"
+
+permissions:
+  contents: read
+
+jobs:
+  publish-latest:
+    runs-on: ubuntu-latest
+    env:
+      AWS_ACCESS_KEY_ID: ${{ secrets.R2_ACCESS_KEY_ID }}
+      AWS_SECRET_ACCESS_KEY: ${{ secrets.R2_SECRET_ACCESS_KEY }}
+      R2_ENDPOINTS: ${{ secrets.R2_ENDPOINTS }}
+      R2_BUCKET: ${{ secrets.R2_BUCKET || 'releases' }}
+      CDN_BASE: https://get.yaoapps.com
+    steps:
+      - name: Configure AWS CLI
+        run: |
+          aws configure set default.region us-east-1
+          aws configure set default.s3.signature_version s3v4
+
+      - name: Verify platform assets exist
+        run: |
+          VERSION="${{ github.event.inputs.version }}"
+          PREFIX="yao/${VERSION}"
+
+          PLATFORMS=(
+            "darwin-arm64"
+            "darwin-amd64"
+            "linux-amd64"
+            "linux-arm64"
+          )
+
+          MISSING=0
+          for P in "${PLATFORMS[@]}"; do
+            KEY="${PREFIX}/yao-${VERSION}-${P}"
+            echo "Checking s3://${R2_BUCKET}/${KEY}"
+            if ! aws s3 ls "s3://${R2_BUCKET}/${KEY}" --endpoint-url "$R2_ENDPOINTS" >/dev/null 2>&1; then
+              echo "::warning::Missing asset: ${KEY}"
+              MISSING=$((MISSING+1))
+            fi
+            if ! aws s3 ls "s3://${R2_BUCKET}/${KEY}.sha256" --endpoint-url "$R2_ENDPOINTS" >/dev/null 2>&1; then
+              echo "::warning::Missing sha256: ${KEY}.sha256"
+              MISSING=$((MISSING+1))
+            fi
+          done
+
+          if [ "$MISSING" -gt 0 ]; then
+            echo "::error::$MISSING required asset(s) are missing on R2. Run platform CI workflows first."
+            exit 1
+          fi
+          echo "All platform assets verified."
+
+      - name: Build latest.json
+        run: |
+          VERSION="${{ github.event.inputs.version }}"
+          RELEASED_AT="$(date -u +%Y-%m-%dT%H:%M:%SZ)"
+
+          python3 <<PY > /tmp/latest.json
+          import json
+          version = "${VERSION}"
+          base = "${CDN_BASE}/yao/${VERSION}"
+          assets = {
+              "darwin-arm64": f"{base}/yao-{version}-darwin-arm64",
+              "darwin-amd64": f"{base}/yao-{version}-darwin-amd64",
+              "linux-amd64":  f"{base}/yao-{version}-linux-amd64",
+              "linux-arm64":  f"{base}/yao-{version}-linux-arm64",
+          }
+          sha256 = {
+              "darwin-arm64": f"{base}/yao-{version}-darwin-arm64.sha256",
+              "darwin-amd64": f"{base}/yao-{version}-darwin-amd64.sha256",
+              "linux-amd64":  f"{base}/yao-{version}-linux-amd64.sha256",
+              "linux-arm64":  f"{base}/yao-{version}-linux-arm64.sha256",
+          }
+          data = {
+              "version": version,
+              "released_at": "${RELEASED_AT}",
+              "assets": assets,
+              "sha256": sha256,
+          }
+          print(json.dumps(data, indent=2, ensure_ascii=False))
+          PY
+
+          cat /tmp/latest.json
+
+      - name: Upload versioned latest.json
+        run: |
+          VERSION="${{ github.event.inputs.version }}"
+          aws s3 cp /tmp/latest.json \
+            "s3://${R2_BUCKET}/yao/${VERSION}/latest.json" \
+            --endpoint-url "$R2_ENDPOINTS" \
+            --content-type "application/json" \
+            --cache-control "public, max-age=60"
+
+      - name: Promote to yao/latest.json
+        if: ${{ github.event.inputs.mark_latest != 'false' }}
+        run: |
+          aws s3 cp /tmp/latest.json \
+            "s3://${R2_BUCKET}/yao/latest.json" \
+            --endpoint-url "$R2_ENDPOINTS" \
+            --content-type "application/json" \
+            --cache-control "public, max-age=60"
+          echo "Promoted to yao/latest.json"

.gitignore

@@ -83,3 +83,7 @@ agent/robot/ROBOT-CACHE-IMPROVEMENT.md
 sandbox/v2/PID-KILL-UPGRADE.md
 sandbox/v2/*.md
 POSTGRESQL_COMPAT.md
+openapi/setting/*.md
+agent/docs/design/*.md
+tools/README.md
+tools/TOOL-REGISTRATION.md

COMMERCIAL_LICENSE.md

@@ -1,61 +0,0 @@
-> **DEPRECATED**: This license is no longer in effect. Please refer to the [LICENSE](LICENSE) file for current licensing terms.
-
-# Commercial License for Yao
-
-This document outlines the terms for the commercial license of the **Yao** project. While the Yao project is primarily licensed under the **Apache License, Version 2.0**, certain commercial use cases require a separate commercial license.
-
-## 1. Commercial License Requirements
-
-The following use cases require a commercial license:
-
-1. **Application Hosting Services**  
-   If you use Yao, or any derivative product (such as a forked or modified version of Yao), to provide Yao-based application hosting services (e.g., Software-as-a-Service (SaaS) or Platform-as-a-Service (PaaS)) to users, you must obtain a commercial license. This restriction applies regardless of whether the original Yao code or a modified version is used to host and manage applications on behalf of third-party users for commercial purposes.  
-   **In addition**, if you provide hosting services for applications that are built using Yao (even if they are customized or modified versions of Yao), a commercial license is required.
-
-   ### Definition: Application Hosting Services
-
-   "Application Hosting Services" refers to any service that involves hosting Yao-based applications or web applications created with Yao (including modified versions of Yao) for third-party users. This includes, but is not limited to:
-
-   - **Hosting platforms** providing software or services built on top of Yao for third-party users.
-   - **SaaS or PaaS offerings** where you manage and host applications that are based on or utilize Yao, either in their original or modified form.
-   - **Managed hosting services** where Yao is used as the underlying technology for applications deployed for external clients.
-
-   In these cases, a commercial license is required, whether you are using the original Yao code or a fork/modified version.
-
-2. **AI Web Application Generation Services**  
-   If you provide services that generate AI-driven web applications using Yao, or any derivative product (such as a fork or modified version of Yao), to third-party users, you are required to purchase a commercial license.
-
-   ### Definition: AI Web Application Generation Services
-
-   "AI Web Application Generation Services" refers to any service or functionality that utilizes Yao (or any forked or modified version of Yao) to automate the creation of web applications with AI capabilities. This includes, but is not limited to, providing third-party users with:
-
-   - **Automated web application development** driven by AI, where the service generates complete or partial web applications.
-   - **Customizable web solutions** that are powered by AI and built using Yao as the core technology.
-   - **On-demand application generation** for specific client needs, using Yao to dynamically build, configure, or deploy applications for users.
-
-   In these cases, whether Yao is directly used, forked, or modified, a commercial license is required to operate legally.
-
-## 2. Use Under Apache License 2.0
-
-For all other uses, the **Apache License, Version 2.0** applies. You are free to use, modify, and distribute the Yao project under the terms of Apache 2.0 as long as your usage does not fall within the restricted scenarios outlined above.
-
-## 3. Obtaining a Commercial License
-
-To inquire about or obtain a commercial license, please contact us at:
-
-- **Email**: [friends@iqka.com]
-- **Website**: [https://moapi.ai/contact]
-
-Pricing and terms for commercial licenses vary based on usage scenarios, user scale, and other factors.
-
-## 4. Compliance and Auditing
-
-If you have any questions about whether your use case requires a commercial license, please contact us for clarification. We reserve the right to audit usage for compliance and enforce commercial licensing terms where necessary.
-
-## 5. Disclaimer
-
-Failure to comply with these licensing terms may result in a violation of the Yao licensing agreement and could lead to legal action.
-
----
-
-**Note:** This commercial license is supplementary to the Apache 2.0 license and only applies in specific commercial scenarios outlined above.

COMMERCIAL_LICENSE.zh-CN.md

@@ -1,61 +0,0 @@
-> **已废弃**: 本许可证已不再生效。请参考 [LICENSE](LICENSE) 文件获取当前的许可条款。
-
-# Yao 商业许可证
-
-本文件概述了 **Yao** 项目的商业许可证条款。虽然 Yao 项目主要使用 **Apache 许可证 2.0 版** 授权，但某些商业使用场景需要单独的商业许可证。
-
-## 1. 商业许可证要求
-
-以下使用场景需要商业许可证：
-
-1. **应用托管服务**  
-   如果您使用 Yao 或其衍生产品（如 Yao 的分支版本或修改版本）为用户提供基于 Yao 的应用托管服务（例如，软件即服务（SaaS）或平台即服务（PaaS）），您必须获得商业许可证。此限制适用于无论是否使用原始 Yao 代码或修改版 Yao 代码，托管和管理应用程序的行为只要是为第三方用户提供的商业目的。  
-   **此外**，如果您提供的托管服务是为使用 Yao 构建的应用程序提供托管服务（即使它们是定制或修改版的 Yao），也需要获得商业许可证。
-
-   ### 定义：应用托管服务
-
-   "应用托管服务"指任何涉及托管基于 Yao 的应用程序或使用 Yao 创建的 WEB 应用程序（包括 Yao 的修改版本）的服务，服务对象为第三方用户。包括但不限于：
-
-   - **托管平台** 提供基于 Yao 的软件或服务给第三方用户。
-   - **SaaS 或 PaaS 服务**，在这些服务中，您管理并托管基于或利用 Yao 的应用程序，可能是原版或修改版。
-   - **托管服务**，其中 Yao 被用作为客户外部部署应用程序的基础技术。
-
-   在这些情况下，无论是使用原始 Yao 代码还是修改版 Yao，都需要获得商业许可证。
-
-2. **AI WEB 应用生成服务**  
-   如果您提供利用 Yao 或其衍生产品（如 Yao 的分支版本或修改版本）为第三方用户生成 AI 驱动的 WEB 应用程序的服务，您需要购买商业许可证。
-
-   ### 定义：AI WEB 应用生成服务
-
-   "AI WEB 应用生成服务"指任何利用 Yao（或任何分支版本或修改版本的 Yao）自动化创建具有 AI 功能的 WEB 应用程序的服务或功能。包括但不限于，为第三方用户提供以下服务：
-
-   - **AI 驱动的自动化 WEB 应用开发**，该服务生成完整或部分 WEB 应用程序。
-   - **可定制的 WEB 解决方案**，这些解决方案由 AI 提供支持，并以 Yao 作为核心技术构建。
-   - **按需应用生成**，根据特定客户需求，使用 Yao 动态构建、配置或部署应用程序。
-
-   在这些情况下，无论是直接使用 Yao，还是使用其分支或修改版，均需要获得商业许可证。
-
-## 2. 使用 Apache 许可证 2.0
-
-对于所有其他用途，**Apache 许可证 2.0 版** 适用。只要您的使用不属于上述限制的商业场景，您可以自由地根据 Apache 2.0 许可证使用、修改和分发 Yao 项目。
-
-## 3. 获取商业许可证
-
-如需咨询或获取商业许可证，请通过以下方式联系我们：
-
-- **电子邮件**：[friends@iqka.com]
-- **网站**：[https://moapi.ai/contact](https://moapi.ai/contact)
-
-商业许可证的定价和条款会根据使用场景、用户规模及其他因素有所不同。
-
-## 4. 合规与审计
-
-如果您对您的使用场景是否需要商业许可证有任何疑问，请联系我们以获取澄清。我们保留审核使用情况以确保合规，并在必要时执行商业许可条款的权利。
-
-## 5. 免责声明
-
-未遵守这些许可条款可能会导致违反 Yao 许可证协议，并可能导致法律诉讼。
-
----
-
-**注意：** 此商业许可证是 Apache 2.0 许可证的补充，仅适用于上述特定的商业场景。

LICENSE

@@ -1,13 +1,13 @@
 # Open Source License
 
-Yao App Engine is licensed under a modified version of the Apache License 2.0, with the following additional conditions:
+Yao Engine is licensed under a modified version of the Apache License 2.0, with the following additional conditions:
 
 1. Commercial Usage Terms:
-   Yao App Engine may be utilized commercially, A commercial license from the producer is required if:
+   Yao Engine may be utilized commercially, A commercial license from the producer is required if:
 
    a. Trademark and Branding Requirements
 
-   - The Yao App Engine console/application logo and copyright information must not be removed or modified
+   - The Yao Engine / Yao Agents / Tai / Tai Link console/application logo and copyright information must not be removed or modified
    - Logo and copyright information can only be changed with an authorization certificate issued through Yao Developer Certificate
 
    b. Authorization Verification Requirements
@@ -15,10 +15,16 @@ Yao App Engine is licensed under a modified version of the Apache License 2.0, w
    - The Yao certificate verification logic, processes, and related pages (marked in code comments) must be preserved
    - The complete Yao certificate verification system must be maintained regardless of usage purpose
 
+   c. Enterprise Scale Requirements
+
+   - Organizations with 50 or more employees, or with annual revenue exceeding USD 1,000,000, must obtain a commercial license from Infinite Wisdom Software.
+   - To obtain a commercial license, please contact us at https://yaoagents.com/enterprise
+
 2. Contributor Agreement:
-   - The producer reserves the right to modify the open-source agreement terms
-   - Contributed code may be used for commercial purposes, including cloud business operations
+   As a contributor, you should agree that:
+   a. Infinite Wisdom Software can adjust the open-source agreement to be more strict or relaxed as deemed necessary.
+   b. Your contributed code may be used for commercial purposes, including but not limited to its cloud business operations.
 
 All other rights and restrictions follow the Apache License 2.0 (http://www.apache.org/licenses/LICENSE-2.0).
 
-© 2025 Infinite Wisdom Software.
+© 2026 Infinite Wisdom Software.

LICENSE.zh-CN

@@ -0,0 +1,30 @@
+# 开源许可证
+
+Yao Engine 基于修改版 Apache License 2.0 授权，并附加以下额外条款：
+
+1. 商业使用条款：
+   Yao Engine 可用于商业用途，但在以下情况下须向 Infinite Wisdom Software 获取商业授权许可：
+
+   a. 商标与品牌要求
+
+   - 不得删除或修改 Yao Engine / Yao Agents / Tai / Tai Link 控制台/应用程序的徽标及版权信息
+   - 徽标和版权信息仅可在持有通过 Yao 开发者证书颁发的授权证书时方可更改
+
+   b. 授权验证要求
+
+   - 必须保留 Yao 证书验证逻辑、流程及相关页面（已在代码注释中标注）
+   - 无论使用目的如何，必须维持完整的 Yao 证书验证系统
+
+   c. 企业规模要求
+
+   - 员工人数达到 50 人及以上，或年收入超过 100 万美元的企业，须向 Infinite Wisdom Software 购买商业授权许可。
+   - 如需获取商业授权，请访问 https://yaoagents.com/enterprise 联系我们。
+
+2. 贡献者协议：
+   作为贡献者，您需同意以下条款：
+   a. Infinite Wisdom Software 可视需要对本开源协议进行更严格或更宽松的调整。
+   b. 您贡献的代码可被用于商业用途，包括但不限于云服务业务运营。
+
+其他所有权利与限制遵循 Apache License 2.0（http://www.apache.org/licenses/LICENSE-2.0）。
+
+© 2026 Infinite Wisdom Software.

Makefile

@@ -11,6 +11,7 @@ OS := $(shell uname)
 
 # ROOT_DIR := $(shell dirname $(realpath $(firstword $(MAKEFILE_LIST))))
 TESTFOLDER := $(shell $(GO) list ./... | grep -vE 'examples|openai|aigc|neo|twilio|share*|registry|agent/sandbox/v2' | awk '!/\/tests\// || /openapi\/tests/' | grep -vE 'openapi/tests/(nodes|sandbox|workspace)')
+# Sandbox setting tests (openapi/tests/setting/sandbox_test.go) require Docker + Tai — skipped in CI, run locally only
 # Core tests (exclude AI-related: agent, aigc, openai, KB, sandbox, registry, grpc, and integrations which require external services)
 TESTFOLDER_CORE := $(shell $(GO) list ./... | grep -vE 'examples|openai|aigc|neo|twilio|share*|agent|kb|sandbox|integrations|registry|tai|grpc' | awk '!/\/tests\// || /openapi\/tests/' | grep -vE 'openapi/tests/(nodes|sandbox|workspace)')
 # Agent tests (agent, aigc) - exclude agent/search/handlers/web (requires external API keys), robot packages (tested in robot job), and agent/sandbox/v2 (WIP, has its own job)
@@ -36,7 +37,7 @@ TESTTAGS ?= ""
 unit-test:
 	echo "mode: count" > coverage.out
 	for d in $(TESTFOLDER); do \
-		$(GO) test -tags $(TESTTAGS) -v -covermode=count -coverprofile=profile.out -coverpkg=$$(echo $$d | sed "s/\/test$$//g") -skip='TestMemoryLeak|TestIsolateDisposal|TestLeak_|TestScenario_' $$d > tmp.out; \
+		$(GO) test -tags $(TESTTAGS) -v -covermode=count -coverprofile=profile.out -coverpkg=$$(echo $$d | sed "s/\/test$$//g") -skip='TestMemoryLeak|TestIsolateDisposal|TestLeak_|TestScenario_|TestSandbox' $$d > tmp.out; \
 		cat tmp.out; \
 		if grep -q "^--- FAIL" tmp.out; then \
 			rm tmp.out; \
@@ -68,7 +69,7 @@ unit-test:
 unit-test-core:
 	echo "mode: count" > coverage.out
 	for d in $(TESTFOLDER_CORE); do \
-		$(GO) test -tags $(TESTTAGS) -v -covermode=count -coverprofile=profile.out -coverpkg=$$(echo $$d | sed "s/\/test$$//g") -skip='TestMemoryLeak|TestIsolateDisposal|TestLeak_|TestScenario_' $$d > tmp.out; \
+		$(GO) test -tags $(TESTTAGS) -v -covermode=count -coverprofile=profile.out -coverpkg=$$(echo $$d | sed "s/\/test$$//g") -skip='TestMemoryLeak|TestIsolateDisposal|TestLeak_|TestScenario_|TestSandbox' $$d > tmp.out; \
 		cat tmp.out; \
 		if grep -q "^--- FAIL" tmp.out; then \
 			rm tmp.out; \

README.md

@@ -1,65 +1,71 @@
-# Yao — Build Autonomous Agents. Just Define the Role.
+# Yao — App Runtime for the AI Era
 
-Yao is an open-source engine for autonomous agents — event-driven, proactive, and self-scheduling.
+Yao is an open-source runtime for building AI agents and web applications — shipped as a single binary.
 
 ![Mission Control](docs/mission-control.png)
 
-**Quick Links:**
+**🏠 Homepage:** [https://yaoagents.com](https://yaoagents.com)
 
-**🏠 Homepage:** [https://yaoapps.com](https://yaoapps.com)
+**📚 Docs:** [https://yaoagents.com/docs](https://yaoagents.com/docs)
 
-**🚀 Quick Start:** [https://yaoapps.com/docs/documentation/en-us/getting-started](https://yaoapps.com/docs/documentation/en-us/getting-started#quickstart)
-
-**📚 Documentation:** [https://yaoapps.com/docs](https://yaoapps.com/docs)
-
-**✨ Why Yao?** [https://yaoapps.com/docs/why-yao](https://yaoapps.com/docs/documentation/en-us/getting-started/why-yao)
-
-**🤖 Yao Agents:** [https://github.com/YaoAgents/awesome](https://github.com/YaoAgents/awesome) ( Preview )
+**🖥️ Yao Desktop:** [https://yaoagents.com/download](https://yaoagents.com/download)
 
 ---
 
-## What Makes Yao Different?
+## How It Works
 
-| Traditional AI Assistants     | Yao Autonomous Agents                 |
-| ----------------------------- | ------------------------------------- |
-| Entry point: Chatbox          | Entry point: Email, Events, Schedules |
-| Passive: You ask, they answer | Proactive: They work autonomously     |
-| Role: Tool                    | Role: Team member                     |
+Think of Yao Agent as a **cage, not an animal**. What you put inside determines the behavior; the cage keeps it controlled.
 
-> The entry point is not a chatbox — it's email, events, and scheduled tasks.
+Every request flows through the same pipeline:
+
+![Pipeline](docs/pipeline.png)
+
+`Create Hook` runs before the executor — inject context, enforce constraints, route requests.  
+`Next Hook` runs after — validate output, trigger downstream actions, drive multi-step loops.  
+**The AI does the heavy lifting. You define the boundaries.**
+
+### Three Modes
+
+| Mode | Executor | When to use |
+|------|----------|-------------|
+| **LLM** | OpenAI, Anthropic, etc. | Conversational assistants, Q&A, content generation |
+| **CLI Agent** | OpenCode, Claude Code, Codex in a container | Computer use, sandbox isolation, SKILL ecosystem |
+| **Pure Hook** | Your own TypeScript code | Deterministic logic, routing, menu flows — no AI needed |
+
+All three share the same Hook interface. You can mix them freely — route some requests through the LLM, handle others with pure code, all inside a single `Create Hook`.
 
 ---
 
 ## Features
 
-### Autonomous Agent Framework
+### Agent Framework
 
-Build agents that work like real team members:
-
-- **Three Trigger Modes** — Clock (scheduled), Human (email/message), Event (webhook/database)
-- **Six-Phase Execution** — Inspiration → Goals → Tasks → Run → Deliver → Learn
-- **Multi-Agent Orchestration** — Agents delegate, collaborate, and compose dynamically
-- **Continuous Learning** — Agents accumulate experience in private knowledge bases
-
-### Native MCP Support
-
-Integrate tools without writing adapters:
-
-- **Process Transport** — Map Yao processes directly to MCP tools
-- **External Servers** — Connect via SSE or STDIO
-- **Schema Mapping** — Declarative input/output schemas
-
-### Built-in GraphRAG
-
-- **Vector Search** — Embeddings with OpenAI/FastEmbed
-- **Knowledge Graph** — Entity-relationship retrieval
-- **Hybrid Search** — Combine vector similarity with graph traversal
+- **TypeScript Hooks** — `Create` and `Next` hooks intercept every request; built-in V8 engine
+- **Native MCP Support** — Connect tools via process, SSE, or STDIO transport
+- **Memory API** — Four scopes: request-level, session, user, team
+- **Multi-Agent** — Delegate to specialist agents or call agents in parallel
+- **CLI Agent / Sandbox** — Run Claude Code (or other CLI runners) in an isolated container with VNC desktop support
+- **Skills Ecosystem** — Drop reusable capability packs (`SKILL.md`) into any CLI Agent
 
 ### Full-Stack Runtime
 
 Everything in a single executable:
 
-- **All-in-One** — Data, API, Agent, UI in one engine
-- **TypeScript Support** — Built-in V8 engine
-- **Single Binary** — No Node.js, Python, or containers required
-- **Edge-Ready** — Runs on ARM64/x64 devices
+- **Data Models** — Define database tables and relations in JSON/YAML
+- **REST APIs** — Map routes to model queries or TypeScript processors
+- **SUI Pages** — Component-based web UI with server-side rendering
+- **Chat UI (CUI)** — Built-in conversation interface for agents
+- **TypeScript** — Built-in V8 engine; no Node.js required
+- **Single Binary** — Runs on ARM64/x64; no Python, Node, or containers needed on the host
+
+### Built-in Search
+
+- **Vector Search** — Embeddings with OpenAI or FastEmbed
+- **Knowledge Graph** — Entity-relationship retrieval
+- **GraphRAG** — Hybrid vector + graph search
+
+---
+
+## About the Name
+
+Yao (爻, yáo) is the fundamental symbol in the I Ching — the building block of the eight trigrams. Like a binary digit, it has two states. Their combinations describe the patterns of everything.

README.zh-CN.md

@@ -1,83 +1,73 @@
-# Yao
+# Yao — AI 时代的应用运行时
 
-[![UnitTest](https://github.com/YaoApp/yao/actions/workflows/unit-test.yml/badge.svg)](https://github.com/YaoApp/yao/actions/workflows/unit-test.yml)
-[![codecov](https://codecov.io/gh/YaoApp/yao/branch/main/graph/badge.svg?token=294Y05U71J)](https://codecov.io/gh/YaoApp/yao)
+Yao 是一个开源的 AI Agent 和 Web 应用运行时，以单一二进制的形式发布，下载即用。
 
-https://github.com/YaoApp/yao/assets/1842210/6b23ac89-ef6e-4c24-874f-753a98370dec
+![Mission Control](docs/mission-control.png)
+
+**🏠 官网：** [https://yaoagents.com](https://yaoagents.com)
+
+**📚 文档：** [https://yaoagents.com/docs](https://yaoagents.com/docs)
+
+**🖥️ Yao Desktop：** [https://yaoagents.com/download](https://yaoagents.com/download)
 
 [English](README.md)
 
-YAO 是一款开源应用引擎，使用 Golang 编写，以一个命令行工具的形式存在, 下载即用。适合用于开发业务系统、网站/APP API 接口、管理后台、自建低代码平台等。
+---
 
-YAO 采用 flow-based 的编程模式，通过编写 YAO DSL (JSON 格式逻辑描述) 或使用 JavaScript 编写处理器，实现各种功能。 YAO DSL 可以有多种编写方式:
+## 工作原理
 
-1. 纯手工编写
+Yao Agent 本质上是一个**笼子，而不是动物**。放进去的东西决定行为，笼子保证可控。
 
-2. 使用自动化脚本，根据上下文逻辑生成
+每个请求都经过同一套管道：
 
-3. 使用可视化编辑器，通过“拖拉拽”制作
+![Pipeline](docs/pipeline.png)
 
-官网: [https://yaoapps.com](https://yaoapps.com)
+`Create Hook` 在执行器前运行 —— 注入上下文、施加约束、路由请求。  
+`Next Hook` 在执行器后运行 —— 校验输出、触发下游动作、驱动多步循环。  
+**AI 负责干活，你来划定边界。**
 
-文档: [https://yaoapps.com/doc](https://yaoapps.com/doc)
+### 三种模式
 
-## 最新版本下载安装 (推荐)
+| 模式 | 执行器 | 适用场景 |
+|------|--------|---------|
+| **LLM** | OpenAI、Anthropic 等 | 对话助手、问答、内容生成 |
+| **CLI Agent** | 容器中的 OpenCode、Claude Code、Codex | Computer Use、沙箱隔离、SKILL 生态 |
+| **纯 Hook** | 你自己的 TypeScript 代码 | 确定性逻辑、菜单路由、无需 AI 的业务流程 |
 
-https://github.com/YaoApp/xgen-dev-app
+三种模式共享同一套 Hook 接口，可以自由混合 —— 在一个 `Create Hook` 里，部分请求走 LLM，部分用纯代码处理。
 
-## 演示
+---
 
-![界面](docs/yao-setup-demo.jpg)
+## 功能特性
 
-使用 YAO 开发的应用
+### Agent 框架
 
-| 应用                 | 简介                         | 代码仓库                                |
-| -------------------- | ---------------------------- | --------------------------------------- |
-| yaoapp/yao-examples  | Yao 应用示例                 | https://github.com/YaoApp/yao-examples  |
-| yaoapp/yao-knowledge | ChatGPT 驱动的知识管理库应用 | https://github.com/YaoApp/yao-knowledge |
-| yaoapp/xgen-dev-app  | 演示应用 (演示)              | https://github.com/YaoApp/xgen-dev-app  |
-| yaoapp/demo-project  | 工程项目管理演示应用(演示)   | https://github.com/yaoapp/demo-project  |
-| yaoapp/demo-finance  | 财务管理演示应用(演示)       | https://github.com/yaoapp/demo-finance  |
-| yaoapp/demo-plm      | 生产项目管理演示应用(演示)   | https://github.com/yaoapp/demo-plm      |
+- **TypeScript Hook** — `Create` 和 `Next` 两个钩子拦截每一次请求；内置 V8 引擎
+- **原生 MCP 支持** — 通过 process、SSE 或 STDIO 传输协议接入工具
+- **Memory API** — 四个作用域：请求级、会话级、用户级、团队级
+- **多 Agent 协作** — 委派给专属 Agent 或并行调用多个 Agent
+- **CLI Agent / 沙箱** — 在隔离容器中运行 Claude Code 等 CLI 程序，支持 VNC 桌面
+- **Skills 生态** — 将可复用的能力包（`SKILL.md`）挂载到任意 CLI Agent
 
-## 介绍
+### 全栈运行时
 
-Yao 是一个只需使用 JSON 即可创建数据库模型、编写 API 接口、描述管理后台界面的应用引擎，使用 Yao 构建的应用可运行在云端或物联网设备上。 开发者不需要写一行代码，就可以拥有 10 倍生产力。
+一个二进制文件包含所有能力：
 
-Yao 基于 **flow-based** 编程思想，采用 **Go** 语言开发，支持多种方式扩展数据流处理器。这使得 Yao 具有极好的**通用性**，大部分场景下可以代替编程语言, 在复用性和编码效率上是传统编程语言的 **10 倍**；应用性能和资源占比上优于 **PHP**, **JAVA** 等语言。
+- **数据模型** — 用 JSON/YAML 定义数据库表和关联关系
+- **REST API** — 将路由映射到模型查询或 TypeScript 处理器
+- **SUI 页面** — 组件化 Web UI，支持服务端渲染
+- **Chat UI（CUI）** — 内置对话界面，开箱即用
+- **TypeScript** — 内置 V8 引擎，不依赖 Node.js
+- **单一二进制** — 支持 ARM64/x64，宿主机无需 Python、Node 或容器
 
-Yao 内置了一套数据管理系统，通过编写 **JSON** 描述界面布局，即可实现 90% 常见界面交互功能，特别适合快速制作各类管理后台、CRM、ERP 等企业内部系统。对于特殊交互功能亦可通过编写扩展组件或 HTML 页面的方式实现。内置管理系统与 Yao 并不耦合，亦可采用 **VUE**, **React** 等任意前端技术实现管理界面。
+### 内置搜索
 
-## 安装
+- **向量搜索** — 支持 OpenAI 或 FastEmbed 嵌入模型
+- **知识图谱** — 实体关系检索
+- **GraphRAG** — 向量 + 图谱混合搜索
 
-Yao v0.10.4 使用说明
+---
 
-https://github.com/YaoApp/xgen-dev-app/blob/main/README.zh-CN.md
+## 关于名字
 
-## 入门指南
-
-详细说明请看[文档](https://yaoapps.com/doc/%E4%BB%8B%E7%BB%8D/%E5%85%A5%E9%97%A8%E6%8C%87%E5%8D%97)
-
-### 创建应用
-
-#### 新建一个空白应用
-
-新建一个应用目录，进入应用目录，运行 `yao start` 命令, 启动安装界面。
-
-```bash
-mkdir -p /data/app  # 创建应用目录
-cd /data/app  # 进入应用目录
-yao start # 启动安装界面
-```
-
-**默认账号**
-
-- 用户名: **xiang@iqka.com**
-
-- 密码: **A123456p+**
-
-![安装界面](docs/yao-setup-step2.jpg)
-
-## 关于 Yao
-
-Yao 的名字源于汉字**爻(yáo)**，是构成八卦的基本符号。八卦，是上古大神伏羲观测总结自然规律后，创造的一个可以指代万事万物的符号体系。爻，有阴阳两种状态，就像 0 和 1。爻的阴阳转换，驱动八卦更替，以此来总结记录事物的发展规律。
+Yao 的名字源于汉字**爻（yáo）**，是构成八卦的基本符号。八卦，是上古大神伏羲观测自然规律后创造的符号体系。爻有阴阳两种状态，就像 0 和 1。爻的阴阳转换，驱动八卦更替，记录事物的发展规律。

agent/assistant/agent.go

@@ -2,20 +2,19 @@ package assistant
 
 import (
 	"fmt"
-	"log"
 	"time"
 
 	jsoniter "github.com/json-iterator/go"
 	"github.com/yaoapp/gou/connector"
 	goullm "github.com/yaoapp/gou/llm"
+	"github.com/yaoapp/kun/log"
 	"github.com/yaoapp/yao/agent/assistant/handlers"
 	"github.com/yaoapp/yao/agent/context"
 	"github.com/yaoapp/yao/agent/i18n"
 	"github.com/yaoapp/yao/agent/llm"
 	"github.com/yaoapp/yao/agent/output/message"
 	agentsandbox "github.com/yaoapp/yao/agent/sandbox"
-	sandboxTypes "github.com/yaoapp/yao/agent/sandbox/v2/types"
-	infraV2 "github.com/yaoapp/yao/sandbox/v2"
+	"github.com/yaoapp/yao/llmprovider"
 )
 
 // Stream stream the agent
@@ -167,30 +166,25 @@ func (ast *Assistant) Stream(ctx *context.Context, inputMessages []context.Messa
 	var sandboxLoadingMsgID string
 
 	// V2 sandbox state
-	var v2Runner sandboxTypes.Runner
-	var v2Computer infraV2.Computer
-	var v2LoadingMsgID string
-
-	var v2Cfg *sandboxTypes.SandboxConfig
+	var v2Init *sandboxV2InitResult
 	if ast.HasSandboxV2() {
 		ctx.Logger.Phase("Sandbox V2")
 		var err error
-		var v2Cleanup func()
-		v2Runner, v2Computer, v2Cfg, v2Cleanup, v2LoadingMsgID, err = ast.initSandboxV2(ctx, opts)
+		v2Init, err = ast.initSandboxV2(ctx, opts)
 		if err != nil {
 			ast.traceAgentFail(agentNode, err)
 			ast.sendStreamEndOnError(ctx, streamHandler, streamStartTime, err)
 			return nil, err
 		}
-		sandboxCleanup = v2Cleanup
+		sandboxCleanup = v2Init.Cleanup
 		ctx.Logger.PhaseComplete("Sandbox V2")
-		if v2Computer != nil {
-			ci := v2Computer.ComputerInfo()
+		if v2Init.Computer != nil {
+			ci := v2Init.Computer.ComputerInfo()
 			ctx.Logger.Trace("Node: %s (%s)", ci.NodeID, ci.Kind)
 			if ci.BoxID != "" {
 				ctx.Logger.Trace("Computer: %s", ci.BoxID)
 			}
-			ctx.Logger.Trace("Workspace: %s", v2Cfg.WorkspaceID)
+			ctx.Logger.Trace("Workspace: %s", v2Init.Config.WorkspaceID)
 			if conn, _, err := ast.GetConnector(ctx, opts); err == nil && conn != nil {
 				ctx.Logger.Trace("Connector: %s", conn.ID())
 			}
@@ -330,22 +324,23 @@ func (ast *Assistant) Stream(ctx *context.Context, inputMessages []context.Messa
 
 		// Execute the LLM streaming call
 		// Choose between sandbox execution or direct LLM execution
-		if ast.HasSandboxV2() && v2Runner != nil && v2Computer != nil && v2Runner.Name() != "yao" {
+		if ast.HasSandboxV2() && v2Init != nil && v2Init.Runner != nil && v2Init.Computer != nil && v2Init.Runner.Name() != "yao" {
 			// V2 Sandbox execution path (non-yao runners replace LLM.Stream)
 			completionResponse, err = ast.executeSandboxV2Stream(ctx, &sandboxV2StreamParams{
 				Messages:     completionMessages,
 				AgentNode:    agentNode,
 				Handler:      streamHandler,
-				Runner:       v2Runner,
-				Computer:     v2Computer,
-				Config:       v2Cfg,
-				LoadingMsgID: v2LoadingMsgID,
+				Runner:       v2Init.Runner,
+				Computer:     v2Init.Computer,
+				Config:       v2Init.Config,
+				LoadingMsgID: v2Init.LoadingMsgID,
 				Options:      opts,
+				Roles:        v2Init.Roles,
 			})
-		} else if ast.HasSandboxV2() && v2Runner != nil && v2Runner.Name() == "yao" {
+		} else if ast.HasSandboxV2() && v2Init != nil && v2Init.Runner != nil && v2Init.Runner.Name() == "yao" {
 			// V2 yao runner: Prepare is done, close loading, fall through to LLM
-			if v2LoadingMsgID != "" {
-				closeLoadingV2(ctx, v2LoadingMsgID, "")
+			if v2Init.LoadingMsgID != "" {
+				closeLoadingV2(ctx, v2Init.LoadingMsgID, "")
 			}
 			completionResponse, err = ast.executeLLMStream(ctx, completionMessages, completionOptions, agentNode, streamHandler, opts)
 		} else if ast.HasSandbox() {
@@ -570,11 +565,47 @@ func (ast *Assistant) Stream(ctx *context.Context, inputMessages []context.Messa
 			ast.sendStreamEndOnError(ctx, streamHandler, streamStartTime, err)
 			return nil, err
 		}
+	} else if len(toolCallResponses) > 0 && !ast.HasSandbox() && !ast.isToolLoopDisabled() {
+		// No Next hook + has tool results + not sandbox → tool loop
+		ctx.Logger.Debug("Entering tool loop for tool result processing")
+		loopResponse, loopCompletion, loopTools, err := ast.executeToolLoop(ctx, &ToolLoopParams{
+			CompletionMessages: completionMessages,
+			CompletionOptions:  completionOptions,
+			CompletionResponse: completionResponse,
+			ToolCallResponses:  toolCallResponses,
+			FullMessages:       fullMessages,
+			AgentNode:          agentNode,
+			StreamHandler:      streamHandler,
+			CreateResponse:     createResponse,
+			Opts:               opts,
+		})
+		if err != nil {
+			// Fallback to __yao.loop_fallback delegation
+			ctx.Logger.Warn("Tool loop failed: %v, falling back to loop_fallback", err)
+			fallbackDelegate := ast.buildLoopFallbackDelegate(ctx, fullMessages, completionResponse, toolCallResponses)
+			delegateResponse, delegateErr := ast.handleDelegation(ctx, fallbackDelegate, streamHandler)
+			if delegateErr != nil {
+				ctx.Logger.Warn("loop_fallback also failed: %v, using standard response", delegateErr)
+				finalResponse = ast.buildStandardResponse(&NextProcessContext{
+					Context:            ctx,
+					CompletionResponse: completionResponse,
+					FullMessages:       fullMessages,
+					ToolCallResponses:  toolCallResponses,
+					StreamHandler:      streamHandler,
+					CreateResponse:     createResponse,
+				})
+			} else {
+				finalResponse = delegateResponse
+			}
+		} else {
+			completionResponse = loopCompletion
+			toolCallResponses = loopTools
+			finalResponse = loopResponse
+		}
 	} else {
-		// No Next hook: use standard response
+		// No tool calls, sandbox mode, or loop disabled: standard response
 		finalResponse = ast.buildStandardResponse(&NextProcessContext{
 			Context:            ctx,
-			NextResponse:       nil,
 			CompletionResponse: completionResponse,
 			FullMessages:       fullMessages,
 			ToolCallResponses:  toolCallResponses,
@@ -627,35 +658,41 @@ func (ast *Assistant) Stream(ctx *context.Context, inputMessages []context.Messa
 	return finalResponse, nil
 }
 
-// GetConnector get the connector object, capabilities, and error with priority:
-// opts.Connector > ast.Connector > defaultConnector (fallback)
+// GetConnector get the connector object, capabilities, and error.
+// Priority: opts.Connector > ast.Connector (may be "use::<role>") > "default" role > legacy fallback
 // Note: opts.Connector may be set by Create hook's applyOptionsAdjustments
-// Returns: (connector, capabilities, error)
 func (ast *Assistant) GetConnector(ctx *context.Context, opts ...*context.Options) (connector.Connector, *goullm.Capabilities, error) {
-	connectorID := ast.Connector
+	cid := ast.Connector
 	if len(opts) > 0 && opts[0] != nil && opts[0].Connector != "" {
-		connectorID = opts[0].Connector
+		cid = opts[0].Connector
 	}
 
-	if connectorID == "" {
-		connectorID = defaultConnector
+	// Extract identity for role-based resolution
+	var identity llmprovider.Identity
+	if ctx != nil && ctx.Authorized != nil {
+		identity = ctx.Authorized
 	}
 
-	if connectorID == "" {
-		return nil, nil, fmt.Errorf("connector not specified")
+	// Unified resolution: explicit connector / use:: prefix / empty → all handled
+	conn, caps, err := llm.ResolveConnector(cid, identity)
+	if err == nil {
+		return conn, caps, nil
+	}
+	// Legacy fallback
+	if defaultConnector != "" {
+		if conn, err := connector.Select(defaultConnector); err == nil {
+			log.Warn("[LLM] Connector %s resolve failed, fallback to %s", cid, defaultConnector)
+			return conn, llm.GetCapabilitiesFromConn(conn), nil
+		}
+	}
+	if fallback := findCapableConnector(); fallback != "" {
+		if conn, err := connector.Select(fallback); err == nil {
+			log.Warn("[LLM] Connector %s resolve failed, fallback to %s (auto-detected)", cid, fallback)
+			return conn, llm.GetCapabilitiesFromConn(conn), nil
+		}
 	}
 
-	conn, err := connector.Select(connectorID)
-	if err != nil && connectorID != defaultConnector && defaultConnector != "" {
-		log.Printf("[Assistant] connector %q not found, falling back to default %q", connectorID, defaultConnector)
-		conn, err = connector.Select(defaultConnector)
-	}
-	if err != nil {
-		return nil, nil, err
-	}
-
-	capabilities := llm.GetCapabilitiesFromConn(conn)
-	return conn, capabilities, nil
+	return nil, nil, fmt.Errorf("connector not specified")
 }
 
 // Info get the assistant information
@@ -794,9 +831,10 @@ func (ast *Assistant) buildToolRetryMessages(
 
 	// Add assistant message with tool calls
 	assistantMsg := context.Message{
-		Role:      context.RoleAssistant,
-		Content:   completionResponse.Content,
-		ToolCalls: completionResponse.ToolCalls,
+		Role:             context.RoleAssistant,
+		Content:          completionResponse.Content,
+		ReasoningContent: completionResponse.ReasoningContent,
+		ToolCalls:        completionResponse.ToolCalls,
 	}
 	retryMessages = append(retryMessages, assistantMsg)
 

agent/assistant/assistant.go

@@ -3,6 +3,7 @@ package assistant
 import (
 	"fmt"
 	"path"
+	"strings"
 
 	"github.com/yaoapp/gou/fs"
 	"github.com/yaoapp/yao/agent/caller"
@@ -27,6 +28,28 @@ func init() {
 		return &agentCallerWrapper{ast: ast}, nil
 	}
 
+	// Initialize AssistantReloadFunc for hot-reload after deploy
+	caller.AssistantReloadFunc = func(id string) error {
+		p := "/assistants/" + strings.Replace(id, ".", "/", 1)
+		ast, err := LoadPath(p)
+		if err != nil {
+			return err
+		}
+		ast.BuiltIn = true
+		ast.Readonly = true
+		if ast.Tags == nil {
+			ast.Tags = []string{}
+		}
+		if err := ast.Save(); err != nil {
+			return err
+		}
+		if err := ast.initialize(); err != nil {
+			return err
+		}
+		loaded.Put(ast)
+		return nil
+	}
+
 	// Initialize Agent JSAPI factory for ctx.agent.* methods
 	caller.SetJSAPIFactory()
 
@@ -161,9 +184,6 @@ func (ast *Assistant) Validate() error {
 	if ast.Name == "" {
 		return fmt.Errorf("name is required")
 	}
-	if ast.Connector == "" {
-		return fmt.Errorf("connector is required")
-	}
 	return nil
 }
 

agent/assistant/chat_test.go

@@ -18,6 +18,7 @@ import (
 )
 
 func TestGetChatKBID(t *testing.T) {
+	t.Skip("KB/DB search temporarily disabled")
 	t.Run("WithTeamAndUser", func(t *testing.T) {
 		teamID := "5659-5504-2879"
 		userID := "4287-9400-2030-0504"
@@ -81,6 +82,7 @@ func TestGetChatKBID(t *testing.T) {
 }
 
 func TestPrepareKBCollection(t *testing.T) {
+	t.Skip("KB/DB search temporarily disabled")
 	testutils.Prepare(t)
 	defer testutils.Clean(t)
 

agent/assistant/load.go

@@ -881,20 +881,11 @@ func loadMap(data map[string]interface{}) (*Assistant, error) {
 // Init init the assistant
 // Choose the connector and initialize the assistant
 func (ast *Assistant) initialize() error {
-
-	conn := defaultConnector
-	if ast.Connector != "" {
-		conn = ast.Connector
-	}
-	ast.Connector = conn
-
-	// Register scripts as process handlers
 	if len(ast.Scripts) > 0 {
 		if err := ast.RegisterScripts(); err != nil {
 			return fmt.Errorf("failed to register scripts: %w", err)
 		}
 	}
-
 	return nil
 }
 

agent/assistant/load_system.go

@@ -29,21 +29,28 @@ var systemAgents = []string{
 	"entity",
 	"vision",
 	"fetch",
+	"loop_fallback",
 }
 
 // SystemConfig holds the system agents connector configuration
 // This is set from agent.yml system block
 type SystemConfig struct {
-	Default     string // Default connector for all system agents
-	Keyword     string // Connector for __yao.keyword agent
-	QueryDSL    string // Connector for __yao.querydsl agent
-	Title       string // Connector for __yao.title agent
-	Prompt      string // Connector for __yao.prompt agent
-	RobotPrompt string // Connector for __yao.robot_prompt agent
-	NeedSearch  string // Connector for __yao.needsearch agent
-	Entity      string // Connector for __yao.entity agent
-	Vision      string // Connector for vision capabilities
-	Voice       string // Connector for voice/STT capabilities
+	// Role-level defaults (consumed by buildSystemRoles → SetDefaults)
+	Default string // Default connector for the "default" role
+	Light   string // Default connector for the "light" role
+	Vision  string // Default connector for the "vision" role
+	Audio   string // Default connector for the "audio" role
+	Heavy   string // Default connector for the "heavy" role (complex reasoning)
+
+	// Per-agent overrides (consumed by resolveSystemConnector → ast.Connector)
+	Keyword      string // Connector for __yao.keyword agent
+	QueryDSL     string // Connector for __yao.querydsl agent
+	Title        string // Connector for __yao.title agent
+	Prompt       string // Connector for __yao.prompt agent
+	RobotPrompt  string // Connector for __yao.robot_prompt agent
+	NeedSearch   string // Connector for __yao.needsearch agent
+	Entity       string // Connector for __yao.entity agent
+	LoopFallback string // Connector for __yao.loop_fallback agent
 }
 
 // systemConfig holds the system agents configuration (global variable like others in load.go)
@@ -160,10 +167,9 @@ func loadSystemAgent(id, pathPrefix string) (*Assistant, error) {
 		pkgData["type"] = "assistant"
 	}
 
-	// Resolve connector for this system agent
-	connectorID := resolveSystemConnector(id)
-	if connectorID != "" {
-		pkgData["connector"] = connectorID
+	// Override connector only if agent.yml has an explicit per-agent setting
+	if override := resolveSystemConnector(id); override != "" {
+		pkgData["connector"] = override
 	}
 
 	// Read prompts.yml from bindata (default prompts)
@@ -207,97 +213,36 @@ func loadSystemAgent(id, pathPrefix string) (*Assistant, error) {
 	return loadMap(pkgData)
 }
 
-// resolveSystemConnector resolves the connector for a system agent
-// Priority: specific agent config > system.default > defaultConnector > fallback to first capable connector
+// resolveSystemConnector returns an explicit per-agent connector override from agent.yml.
+// Returns empty string if no override exists, so the connector declared in package.yao
+// (e.g. "use::light") is preserved as-is.
 func resolveSystemConnector(agentID string) string {
-	// Try specific agent config first
-	if systemConfig != nil {
-		switch agentID {
-		case "__yao.keyword":
-			if systemConfig.Keyword != "" {
-				return systemConfig.Keyword
-			}
-		case "__yao.querydsl":
-			if systemConfig.QueryDSL != "" {
-				return systemConfig.QueryDSL
-			}
-		case "__yao.title":
-			if systemConfig.Title != "" {
-				return systemConfig.Title
-			}
-		case "__yao.prompt":
-			if systemConfig.Prompt != "" {
-				return systemConfig.Prompt
-			}
-		case "__yao.robot_prompt":
-			if systemConfig.RobotPrompt != "" {
-				return systemConfig.RobotPrompt
-			}
-		case "__yao.needsearch":
-			if systemConfig.NeedSearch != "" {
-				return systemConfig.NeedSearch
-			}
-		case "__yao.entity":
-			if systemConfig.Entity != "" {
-				return systemConfig.Entity
-			}
-		case "__yao.vision":
-			if systemConfig.Vision != "" {
-				return systemConfig.Vision
-			}
-		case "__yao.voice":
-			if systemConfig.Voice != "" {
-				return systemConfig.Voice
-			}
-		}
-
-		// Try system default
-		if systemConfig.Default != "" {
-			return systemConfig.Default
-		}
+	if systemConfig == nil {
+		return ""
 	}
-
-	// Try global default connector
-	if defaultConnector != "" {
-		return defaultConnector
+	switch agentID {
+	case "__yao.keyword":
+		return systemConfig.Keyword
+	case "__yao.querydsl":
+		return systemConfig.QueryDSL
+	case "__yao.title":
+		return systemConfig.Title
+	case "__yao.prompt":
+		return systemConfig.Prompt
+	case "__yao.robot_prompt":
+		return systemConfig.RobotPrompt
+	case "__yao.needsearch":
+		return systemConfig.NeedSearch
+	case "__yao.entity":
+		return systemConfig.Entity
+	case "__yao.vision":
+		return systemConfig.Vision
+	case "__yao.audio":
+		return systemConfig.Audio
+	case "__yao.loop_fallback":
+		return systemConfig.LoopFallback
 	}
-
-	// Fallback: find first connector that supports tool calling
-	return findCapableConnector()
-}
-
-// GetVisionConnector returns the connector for vision capabilities.
-// Priority: system.vision > system.default > defaultConnector > findCapableConnector
-func GetVisionConnector() string {
-	if systemConfig != nil {
-		if systemConfig.Vision != "" {
-			return systemConfig.Vision
-		}
-		if systemConfig.Default != "" {
-			return systemConfig.Default
-		}
-	}
-	if defaultConnector != "" {
-		return defaultConnector
-	}
-	return findCapableConnector()
-}
-
-// GetVoiceConnector returns the connector for voice/STT capabilities.
-// Priority: system.voice > system.default > defaultConnector > findCapableConnector
-func GetVoiceConnector() string {
-	if systemConfig != nil {
-		if systemConfig.Voice != "" {
-			return systemConfig.Voice
-		}
-		if systemConfig.Default != "" {
-			return systemConfig.Default
-		}
-	}
-	if defaultConnector != "" {
-		return defaultConnector
-	}
-	return findCapableConnector()
+	return ""
 }
 
 // findCapableConnector finds the first connector that supports tool calling

agent/assistant/load_system_test.go

@@ -0,0 +1,58 @@
+package assistant
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestResolveSystemConnector_NoConfig(t *testing.T) {
+	saved := systemConfig
+	systemConfig = nil
+	defer func() { systemConfig = saved }()
+
+	assert.Equal(t, "", resolveSystemConnector("__yao.title"))
+	assert.Equal(t, "", resolveSystemConnector("__yao.keyword"))
+	assert.Equal(t, "", resolveSystemConnector("__yao.querydsl"))
+	assert.Equal(t, "", resolveSystemConnector("__yao.vision"))
+}
+
+func TestResolveSystemConnector_PerAgentOverride(t *testing.T) {
+	saved := systemConfig
+	systemConfig = &SystemConfig{
+		Title: "openai.gpt-4o",
+	}
+	defer func() { systemConfig = saved }()
+
+	assert.Equal(t, "openai.gpt-4o", resolveSystemConnector("__yao.title"))
+	assert.Equal(t, "", resolveSystemConnector("__yao.keyword"))
+	assert.Equal(t, "", resolveSystemConnector("__yao.querydsl"))
+	assert.Equal(t, "", resolveSystemConnector("__yao.vision"))
+}
+
+func TestResolveSystemConnector_RoleLevelOnly(t *testing.T) {
+	saved := systemConfig
+	systemConfig = &SystemConfig{
+		Default: "openai.gpt-4o",
+		Light:   "openai.gpt-4o-mini",
+	}
+	defer func() { systemConfig = saved }()
+
+	// Role-level keys don't produce per-agent overrides
+	assert.Equal(t, "", resolveSystemConnector("__yao.title"))
+	assert.Equal(t, "", resolveSystemConnector("__yao.keyword"))
+	assert.Equal(t, "", resolveSystemConnector("__yao.querydsl"))
+	assert.Equal(t, "", resolveSystemConnector("__yao.vision"))
+}
+
+func TestResolveSystemConnector_UnknownAgent(t *testing.T) {
+	saved := systemConfig
+	systemConfig = &SystemConfig{
+		Default: "openai.gpt-4o",
+		Title:   "openai.gpt-4o",
+	}
+	defer func() { systemConfig = saved }()
+
+	assert.Equal(t, "", resolveSystemConnector("__yao.nonexistent"))
+	assert.Equal(t, "", resolveSystemConnector("custom.agent"))
+}

agent/assistant/loop.go

@@ -0,0 +1,295 @@
+package assistant
+
+import (
+	"fmt"
+	"strings"
+
+	jsoniter "github.com/json-iterator/go"
+	"github.com/yaoapp/yao/agent/context"
+	"github.com/yaoapp/yao/agent/output/message"
+	"github.com/yaoapp/yao/trace/types"
+)
+
+// ToolLoopParams holds all parameters needed by executeToolLoop.
+type ToolLoopParams struct {
+	CompletionMessages []context.Message
+	CompletionOptions  *context.CompletionOptions
+	CompletionResponse *context.CompletionResponse
+	ToolCallResponses  []context.ToolCallResponse
+	FullMessages       []context.Message
+	AgentNode          types.Node
+	StreamHandler      message.StreamFunc
+	CreateResponse     *context.HookCreateResponse
+	Opts               *context.Options
+}
+
+// executeToolLoop feeds tool results back to the LLM in a loop until
+// the LLM produces a final text response (no more tool_calls) or
+// the maximum number of turns is reached.
+//
+// Returns the final Response, the last CompletionResponse (for tracing),
+// accumulated ToolCallResponses, and any error.
+func (ast *Assistant) executeToolLoop(
+	ctx *context.Context,
+	params *ToolLoopParams,
+) (*context.Response, *context.CompletionResponse, []context.ToolCallResponse, error) {
+
+	maxTurns := ast.getMaxToolLoopTurns()
+	currentMessages := params.CompletionMessages
+	currentCompletion := params.CompletionResponse
+	allToolResponses := make([]context.ToolCallResponse, 0, len(params.ToolCallResponses))
+	allToolResponses = append(allToolResponses, params.ToolCallResponses...)
+
+	for turn := 0; turn < maxTurns; turn++ {
+		ctx.Logger.Debug("Tool loop turn %d/%d", turn+1, maxTurns)
+
+		// Build messages: previous messages + assistant(tool_calls) + tool results
+		loopMessages := buildToolLoopMessages(currentMessages, currentCompletion, allToolResponses[len(allToolResponses)-len(params.ToolCallResponses):])
+
+		// Step tracking: LLM call
+		ast.BeginStep(ctx, context.StepTypeLLM, map[string]interface{}{
+			"messages":  loopMessages,
+			"loop_turn": turn + 1,
+		})
+
+		// Call LLM with tool results included
+		newCompletion, err := ast.executeLLMStream(ctx, loopMessages, params.CompletionOptions, params.AgentNode, params.StreamHandler, params.Opts)
+		if err != nil {
+			return nil, nil, nil, fmt.Errorf("tool loop LLM call failed (turn %d): %w", turn+1, err)
+		}
+
+		ast.CompleteStep(ctx, map[string]interface{}{
+			"content":    newCompletion.Content,
+			"tool_calls": newCompletion.ToolCalls,
+		})
+
+		// No tool_calls → LLM gave final text response
+		if newCompletion.ToolCalls == nil || len(newCompletion.ToolCalls) == 0 {
+			finalResponse := ast.buildStandardResponse(&NextProcessContext{
+				Context:            ctx,
+				CompletionResponse: newCompletion,
+				FullMessages:       params.FullMessages,
+				ToolCallResponses:  allToolResponses,
+				StreamHandler:      params.StreamHandler,
+				CreateResponse:     params.CreateResponse,
+			})
+			return finalResponse, newCompletion, allToolResponses, nil
+		}
+
+		// Has tool_calls → execute them
+		ast.BeginStep(ctx, context.StepTypeTool, map[string]interface{}{
+			"tool_calls": newCompletion.ToolCalls,
+			"loop_turn":  turn + 1,
+		})
+
+		toolResults, _ := ast.executeToolCalls(ctx, newCompletion.ToolCalls, 0)
+
+		// Convert ToolCallResult → ToolCallResponse
+		toolCallArgsMap := make(map[string]interface{})
+		for _, tc := range newCompletion.ToolCalls {
+			toolCallArgsMap[tc.ID] = tc.Function.Arguments
+		}
+
+		turnResponses := make([]context.ToolCallResponse, len(toolResults))
+		for i, result := range toolResults {
+			parsedContent, _ := result.ParsedContent()
+			turnResponses[i] = context.ToolCallResponse{
+				ToolCallID: result.ToolCallID,
+				Server:     result.Server(),
+				Tool:       result.Tool(),
+				Arguments:  toolCallArgsMap[result.ToolCallID],
+				Result:     parsedContent,
+				Error:      "",
+			}
+			if result.Error != nil {
+				turnResponses[i].Error = result.Error.Error()
+			}
+		}
+
+		ast.CompleteStep(ctx, map[string]interface{}{
+			"results":   turnResponses,
+			"loop_turn": turn + 1,
+		})
+
+		// Accumulate and prepare next iteration
+		allToolResponses = append(allToolResponses, turnResponses...)
+		currentMessages = loopMessages
+		currentCompletion = newCompletion
+		params.ToolCallResponses = turnResponses
+	}
+
+	return nil, nil, allToolResponses, fmt.Errorf("tool loop reached max turns (%d)", maxTurns)
+}
+
+// buildToolLoopMessages constructs the message sequence for the next LLM call:
+// previous messages + assistant message (with tool_calls) + tool result messages.
+// Unlike buildToolRetryMessages, this does NOT append a retry system prompt.
+func buildToolLoopMessages(
+	previousMessages []context.Message,
+	completion *context.CompletionResponse,
+	toolResponses []context.ToolCallResponse,
+) []context.Message {
+	messages := make([]context.Message, 0, len(previousMessages)+len(toolResponses)+2)
+	messages = append(messages, previousMessages...)
+
+	// Assistant message with tool_calls
+	messages = append(messages, context.Message{
+		Role:             context.RoleAssistant,
+		Content:          completion.Content,
+		ReasoningContent: completion.ReasoningContent,
+		ToolCalls:        completion.ToolCalls,
+	})
+
+	// One tool-role message per tool call result
+	for _, tr := range toolResponses {
+		var content string
+		if tr.Error != "" {
+			content = fmt.Sprintf("Error: %s", tr.Error)
+		} else if tr.Result != nil {
+			raw, _ := jsoniter.MarshalToString(tr.Result)
+			content = raw
+		}
+		toolCallID := tr.ToolCallID
+		messages = append(messages, context.Message{
+			Role:       context.RoleTool,
+			Content:    content,
+			ToolCallID: &toolCallID,
+		})
+	}
+
+	return messages
+}
+
+// isToolLoopDisabled checks mcp.options.tool_loop.
+// Default is enabled (returns false). Only disabled when explicitly set to false.
+func (ast *Assistant) isToolLoopDisabled() bool {
+	if ast.MCP == nil || ast.MCP.Options == nil {
+		return false
+	}
+	if v, ok := ast.MCP.Options["tool_loop"]; ok {
+		if enabled, ok := v.(bool); ok {
+			return !enabled
+		}
+	}
+	return false
+}
+
+// getMaxToolLoopTurns reads mcp.options.max_turn. Default is 5.
+func (ast *Assistant) getMaxToolLoopTurns() int {
+	const defaultMaxTurns = 5
+	if ast.MCP == nil || ast.MCP.Options == nil {
+		return defaultMaxTurns
+	}
+	if v, ok := ast.MCP.Options["max_turn"]; ok {
+		switch n := v.(type) {
+		case float64:
+			if n > 0 {
+				return int(n)
+			}
+		case int:
+			if n > 0 {
+				return n
+			}
+		}
+	}
+	return defaultMaxTurns
+}
+
+// ---------------------------------------------------------------------------
+// Fallback: __yao.loop_fallback delegation (used when tool loop fails/maxes out)
+// ---------------------------------------------------------------------------
+
+// buildLoopFallbackDelegate constructs a DelegateConfig for __yao.loop_fallback.
+// It packages conversation context and tool results into a Markdown user message.
+func (ast *Assistant) buildLoopFallbackDelegate(
+	ctx *context.Context,
+	fullMessages []context.Message,
+	completion *context.CompletionResponse,
+	toolResults []context.ToolCallResponse,
+) *context.DelegateConfig {
+
+	content := buildLoopFallbackMarkdown(fullMessages, toolResults)
+	return &context.DelegateConfig{
+		AgentID: "__yao.loop_fallback",
+		Messages: []context.Message{
+			{Role: context.RoleUser, Content: content},
+		},
+	}
+}
+
+// buildLoopFallbackMarkdown formats context into a Markdown string for the fallback agent.
+func buildLoopFallbackMarkdown(
+	fullMessages []context.Message,
+	toolResults []context.ToolCallResponse,
+) string {
+	var sb strings.Builder
+
+	sb.WriteString("## Assistant Context\n\n")
+	for _, msg := range fullMessages {
+		if msg.Role == context.RoleSystem {
+			if text := messageText(msg); text != "" {
+				sb.WriteString(text)
+				sb.WriteString("\n\n")
+			}
+		}
+	}
+
+	sb.WriteString("## Conversation\n\n")
+	for _, msg := range fullMessages {
+		text := messageText(msg)
+		switch msg.Role {
+		case context.RoleUser:
+			if text != "" {
+				sb.WriteString(fmt.Sprintf("**User**: %s\n\n", text))
+			}
+		case context.RoleAssistant:
+			if text != "" {
+				sb.WriteString(fmt.Sprintf("**Assistant**: %s\n\n", text))
+			}
+		}
+	}
+
+	sb.WriteString("## Tool Results\n\n")
+	for _, tr := range toolResults {
+		toolName := tr.Tool
+		if tr.Server != "" {
+			toolName = tr.Server + "." + tr.Tool
+		}
+		sb.WriteString(fmt.Sprintf("### %s\n", toolName))
+		if tr.Error != "" {
+			sb.WriteString(fmt.Sprintf("Error: %s\n\n", tr.Error))
+		} else {
+			raw, _ := jsoniter.MarshalToString(tr.Result)
+			sb.WriteString(fmt.Sprintf("```json\n%s\n```\n\n", raw))
+		}
+	}
+
+	sb.WriteString("---\nPlease answer the user's question based on the above context and tool results.\n")
+	sb.WriteString("Respond in the same language as the user.\n")
+	return sb.String()
+}
+
+// messageText extracts text content from a message's Content field.
+// Content can be a string or an array of content parts (multimodal).
+func messageText(msg context.Message) string {
+	if msg.Content == nil {
+		return ""
+	}
+	if str, ok := msg.Content.(string); ok {
+		return str
+	}
+	if parts, ok := msg.Content.([]interface{}); ok {
+		var texts []string
+		for _, part := range parts {
+			if partMap, ok := part.(map[string]interface{}); ok {
+				if partMap["type"] == "text" {
+					if text, ok := partMap["text"].(string); ok {
+						texts = append(texts, text)
+					}
+				}
+			}
+		}
+		return strings.Join(texts, "\n")
+	}
+	return fmt.Sprintf("%v", msg.Content)
+}

agent/assistant/mcp.go

@@ -375,12 +375,6 @@ func (ast *Assistant) executeSingleToolCall(ctx *agentContext.Context, toolCall
 		return []ToolCallResult{result}, true
 	}
 
-	// Check if result is an error
-	if callResult.IsError {
-		result.Error = fmt.Errorf("MCP tool error")
-		result.IsRetryableError = false // MCP internal error is not retryable
-	}
-
 	// Serialize the Content field only ([]ToolContent)
 	contentBytes, err := jsoniter.Marshal(callResult.Content)
 	if err != nil {
@@ -396,6 +390,19 @@ func (ast *Assistant) executeSingleToolCall(ctx *agentContext.Context, toolCall
 	}
 
 	result.Content = string(contentBytes)
+
+	// Check if result is an error — include actual content so LLM can see the details
+	if callResult.IsError {
+		result.Error = fmt.Errorf("tool call error: %s", result.Content)
+		result.IsRetryableError = isRetryableToolError(result.Error)
+		ctx.Logger.Error("Tool call failed: %s - %s (retryable: %v)", toolCall.Function.Name, result.Content, result.IsRetryableError)
+		ctx.Logger.ToolComplete(toolCall.Function.Name, false)
+		if toolNode != nil {
+			toolNode.Fail(result.Error)
+		}
+		return []ToolCallResult{result}, true
+	}
+
 	ctx.Logger.ToolComplete(toolCall.Function.Name, true)
 
 	if toolNode != nil {
@@ -545,7 +552,7 @@ func (ast *Assistant) executeServerToolsParallelWithTrace(mcpCtx context.Context
 	// Prepare parallel trace inputs
 	var parallelInputs []types.TraceParallelInput
 	mcpCalls := make([]mcpTypes.ToolCall, 0, len(toolCalls))
-	callMap := make(map[string]agentContext.ToolCall)
+	orderedCalls := make([]agentContext.ToolCall, 0, len(toolCalls))
 
 	for _, tc := range toolCalls {
 		_, toolName, ok := ParseMCPToolName(tc.Function.Name)
@@ -565,7 +572,7 @@ func (ast *Assistant) executeServerToolsParallelWithTrace(mcpCtx context.Context
 			Name:      toolName,
 			Arguments: args,
 		})
-		callMap[toolName] = tc
+		orderedCalls = append(orderedCalls, tc)
 		ctx.Logger.ToolStart(tc.Function.Name)
 
 		// Add trace input for this tool
@@ -606,10 +613,8 @@ func (ast *Assistant) executeServerToolsParallelWithTrace(mcpCtx context.Context
 			if node != nil {
 				node.Fail(err)
 			}
-			if i < len(mcpCalls) {
-				if tc, ok := callMap[mcpCalls[i].Name]; ok {
-					ctx.Logger.ToolComplete(tc.Function.Name, false)
-				}
+			if i < len(orderedCalls) {
+				ctx.Logger.ToolComplete(orderedCalls[i].Function.Name, false)
 			}
 		}
 		return nil, true
@@ -621,7 +626,7 @@ func (ast *Assistant) executeServerToolsParallelWithTrace(mcpCtx context.Context
 
 	for i, mcpResult := range mcpResponse.Results {
 		toolName := mcpCalls[i].Name
-		originalCall := callMap[toolName]
+		originalCall := orderedCalls[i]
 		var toolNode types.Node
 		if i < len(toolNodes) {
 			toolNode = toolNodes[i]
@@ -809,19 +814,12 @@ func (ast *Assistant) executeServerToolsSequentialWithTrace(mcpCtx context.Conte
 				toolNode.Fail(err)
 			}
 		} else {
-			// Check if result is an error
-			if mcpResult.IsError {
-				result.Error = fmt.Errorf("MCP tool error")
-				result.IsRetryableError = false // MCP internal error is not retryable
-				hasErrors = true
-			}
-
 			// Serialize the Content field only ([]ToolContent)
 			contentBytes, err := jsoniter.Marshal(mcpResult.Content)
 			if err != nil {
 				result.Error = err
 				result.Content = fmt.Sprintf("Failed to serialize result: %v", err)
-				result.IsRetryableError = false // Serialization error is not retryable
+				result.IsRetryableError = false
 				hasErrors = true
 				ctx.Logger.ToolComplete(tc.Function.Name, false)
 				if toolNode != nil {
@@ -829,11 +827,24 @@ func (ast *Assistant) executeServerToolsSequentialWithTrace(mcpCtx context.Conte
 				}
 			} else {
 				result.Content = string(contentBytes)
-				ctx.Logger.ToolComplete(tc.Function.Name, !mcpResult.IsError)
-				if toolNode != nil {
-					toolNode.Complete(map[string]any{
-						"result": mcpResult.Content,
-					})
+
+				// Check if result is an error — include actual content so LLM can see the details
+				if mcpResult.IsError {
+					result.Error = fmt.Errorf("tool call error: %s", result.Content)
+					result.IsRetryableError = isRetryableToolError(result.Error)
+					hasErrors = true
+					ctx.Logger.Error("Tool call failed: %s - %s (retryable: %v)", toolName, result.Content, result.IsRetryableError)
+					ctx.Logger.ToolComplete(tc.Function.Name, false)
+					if toolNode != nil {
+						toolNode.Fail(result.Error)
+					}
+				} else {
+					ctx.Logger.ToolComplete(tc.Function.Name, true)
+					if toolNode != nil {
+						toolNode.Complete(map[string]any{
+							"result": mcpResult.Content,
+						})
+					}
 				}
 			}
 		}

agent/assistant/sandbox.go

@@ -10,6 +10,7 @@ import (
 	"time"
 
 	"github.com/yaoapp/gou/connector"
+	goullm "github.com/yaoapp/gou/llm"
 	gouMCP "github.com/yaoapp/gou/mcp"
 	mcpProcess "github.com/yaoapp/gou/mcp/process"
 	"github.com/yaoapp/yao/agent/context"
@@ -266,30 +267,26 @@ func (ast *Assistant) buildSandboxOptions(ctx *context.Context, opts *context.Op
 		execOpts.ConnectorType = "openai"
 	}
 
+	// Extract standard fields via LLMConnector when available, fallback to Setting()
 	setting := conn.Setting()
-	if host, ok := setting["host"].(string); ok {
-		execOpts.ConnectorHost = host
-	}
-	if key, ok := setting["key"].(string); ok {
-		execOpts.ConnectorKey = key
-	}
-	if model, ok := setting["model"].(string); ok {
-		execOpts.Model = model
-	}
-
-	// Extract extra connector options (thinking, max_tokens, temperature, etc.)
-	// These are backend-specific parameters that need to be passed through to the proxy
-	connectorOptions := make(map[string]interface{})
-	for k, v := range setting {
-		// Skip standard fields that are already handled
-		switch k {
-		case "host", "key", "model", "azure", "capabilities":
-			continue
-		default:
-			// Include all other fields as extra options
-			connectorOptions[k] = v
+	if lc, ok := conn.(goullm.LLMConnector); ok {
+		execOpts.ConnectorHost = lc.GetURL()
+		execOpts.ConnectorKey = lc.GetKey()
+		execOpts.Model = lc.GetModel()
+	} else {
+		if host, ok := setting["host"].(string); ok {
+			execOpts.ConnectorHost = host
+		}
+		if key, ok := setting["key"].(string); ok {
+			execOpts.ConnectorKey = key
+		}
+		if model, ok := setting["model"].(string); ok {
+			execOpts.Model = model
 		}
 	}
+
+	// Whitelist-filter remaining settings for sandbox proxy options
+	connectorOptions := connector.FilterRequestBodyParams(setting, conn)
 	if len(connectorOptions) > 0 {
 		execOpts.ConnectorOptions = connectorOptions
 		ctx.Logger.Debug("Connector options extracted: %v", connectorOptions)

agent/assistant/sandbox_v2.go

@@ -8,6 +8,7 @@ import (
 	"path/filepath"
 	"time"
 
+	"github.com/yaoapp/gou/connector"
 	"github.com/yaoapp/yao/agent/context"
 	"github.com/yaoapp/yao/agent/i18n"
 	"github.com/yaoapp/yao/agent/output/message"
@@ -15,6 +16,7 @@ import (
 	sandboxTypes "github.com/yaoapp/yao/agent/sandbox/v2/types"
 	store "github.com/yaoapp/yao/agent/store/types"
 	"github.com/yaoapp/yao/config"
+	"github.com/yaoapp/yao/llmprovider"
 	infraV2 "github.com/yaoapp/yao/sandbox/v2"
 	traceTypes "github.com/yaoapp/yao/trace/types"
 	"github.com/yaoapp/yao/workspace"
@@ -25,15 +27,22 @@ func (ast *Assistant) HasSandboxV2() bool {
 	return ast.SandboxV2 != nil
 }
 
+// sandboxV2InitResult bundles everything returned by initSandboxV2.
+type sandboxV2InitResult struct {
+	Runner       sandboxTypes.Runner
+	Computer     infraV2.Computer
+	Config       *sandboxTypes.SandboxConfig
+	Cleanup      func()
+	LoadingMsgID string
+	Roles        map[string]connector.Connector
+}
+
 // initSandboxV2 initializes the V2 sandbox: obtains a Computer, gets a Runner,
-// runs Prepare, and returns the runner, computer, a per-request copy of the
-// SandboxConfig, cleanup closure, loading message ID, and any error.
+// resolves the role matrix, runs Prepare, and returns the result.
 //
 // A shallow copy of ast.SandboxV2 is made so that concurrent requests to the
 // same assistant each get their own mutable config (Owner, ID, NodeID, etc.).
-func (ast *Assistant) initSandboxV2(ctx *context.Context, opts *context.Options) (
-	sandboxTypes.Runner, infraV2.Computer, *sandboxTypes.SandboxConfig, func(), string, error,
-) {
+func (ast *Assistant) initSandboxV2(ctx *context.Context, opts *context.Options) (*sandboxV2InitResult, error) {
 	cfgCopy := *ast.SandboxV2
 	cfg := &cfgCopy
 	manager := infraV2.M()
@@ -52,9 +61,12 @@ func (ast *Assistant) initSandboxV2(ctx *context.Context, opts *context.Options)
 	conn, _, err := ast.GetConnector(ctx, opts)
 	if err != nil && cfg.Runner.Name != "yao" {
 		closeLoadingV2(ctx, loadingMsgID, "sandbox.failed")
-		return nil, nil, nil, nil, "", fmt.Errorf("get connector: %w", err)
+		return nil, fmt.Errorf("get connector: %w", err)
 	}
 
+	// 1b. Resolve role matrix once; passed to both Prepare and Stream.
+	roles := resolveRoles(conn, ctx.Authorized)
+
 	// 2. Build human-readable DisplayName from real Agent name + Workspace name.
 	cfg.DisplayName = buildBoxDisplayName(ctx, ast.ID, ast.Name)
 
@@ -89,7 +101,7 @@ func (ast *Assistant) initSandboxV2(ctx *context.Context, opts *context.Options)
 	computer, identifier, err := sandboxv2.GetComputer(ctx, cfg, manager)
 	if err != nil {
 		closeLoadingV2(ctx, loadingMsgID, "sandbox.failed")
-		return nil, nil, nil, nil, "", fmt.Errorf("getComputer failed: %w", err)
+		return nil, fmt.Errorf("getComputer failed: %w", err)
 	}
 	_ = identifier
 
@@ -98,7 +110,7 @@ func (ast *Assistant) initSandboxV2(ctx *context.Context, opts *context.Options)
 	if err != nil {
 		sandboxv2.LifecycleAction(stdCtx, cfg, computer, manager)
 		closeLoadingV2(ctx, loadingMsgID, "sandbox.failed")
-		return nil, nil, nil, nil, "", fmt.Errorf("get runner %q: %w", cfg.Runner.Name, err)
+		return nil, fmt.Errorf("get runner %q: %w", cfg.Runner.Name, err)
 	}
 
 	// 5. Resolve assistant directory and skills subdirectory.
@@ -129,6 +141,7 @@ func (ast *Assistant) initSandboxV2(ctx *context.Context, opts *context.Options)
 		Computer:     computer,
 		Config:       cfg,
 		Connector:    conn,
+		Roles:        roles,
 		AssistantID:  ast.ID,
 		SkillsDir:    skillsDir,
 		AssistantDir: assistantDir,
@@ -140,11 +153,9 @@ func (ast *Assistant) initSandboxV2(ctx *context.Context, opts *context.Options)
 		runner.Cleanup(stdCtx, computer)
 		sandboxv2.LifecycleAction(stdCtx, cfg, computer, manager)
 		closeLoadingV2(ctx, loadingMsgID, "sandbox.failed")
-		return nil, nil, nil, nil, "", fmt.Errorf("runner.Prepare: %w", err)
+		return nil, fmt.Errorf("runner.Prepare: %w", err)
 	}
 
-	// Inject computer + workspace into context so Create/Next hooks
-	// can access ctx.computer and ctx.workspace.
 	ctx.SetComputer(computer)
 
 	cleanup := func() {
@@ -154,7 +165,14 @@ func (ast *Assistant) initSandboxV2(ctx *context.Context, opts *context.Options)
 		sandboxv2.LifecycleAction(cleanCtx, cfg, computer, manager)
 	}
 
-	return runner, computer, cfg, cleanup, loadingMsgID, nil
+	return &sandboxV2InitResult{
+		Runner:       runner,
+		Computer:     computer,
+		Config:       cfg,
+		Cleanup:      cleanup,
+		LoadingMsgID: loadingMsgID,
+		Roles:        roles,
+	}, nil
 }
 
 // sandboxV2StreamParams groups arguments for executeSandboxV2Stream.
@@ -167,6 +185,7 @@ type sandboxV2StreamParams struct {
 	Config       *sandboxTypes.SandboxConfig
 	LoadingMsgID string
 	Options      *context.Options
+	Roles        map[string]connector.Connector
 }
 
 // executeSandboxV2Stream calls the V2 Runner.Stream and wraps it in the
@@ -208,6 +227,7 @@ func (ast *Assistant) executeSandboxV2Stream(
 		Computer:     p.Computer,
 		Config:       cfg,
 		Connector:    conn,
+		Roles:        p.Roles,
 		AssistantID:  ast.ID,
 		Messages:     p.Messages,
 		SystemPrompt: systemPrompt,
@@ -215,6 +235,7 @@ func (ast *Assistant) executeSandboxV2Stream(
 		Token:        tok,
 		Logger:       ctx.Logger,
 		UserExplicit: p.Options != nil && p.Options.Connector != "",
+		Locale:       ctx.Locale,
 	}
 
 	execReq := &sandboxv2.ExecuteRequest{
@@ -229,6 +250,25 @@ func (ast *Assistant) executeSandboxV2Stream(
 	return sandboxv2.ExecuteSandboxStream(ctx, execReq, p.Handler)
 }
 
+// resolveRoles builds the role → connector map using the llmprovider role system.
+// The primary connector (user-selected or system default) becomes "default";
+// other roles (heavy, light, vision) are fetched from llmprovider settings.
+func resolveRoles(conn connector.Connector, identity llmprovider.Identity) map[string]connector.Connector {
+	roles := map[string]connector.Connector{}
+	if conn != nil {
+		roles["default"] = conn
+	}
+	if llmprovider.Global == nil || identity == nil {
+		return roles
+	}
+	for _, role := range []string{"heavy", "light", "vision"} {
+		if c, err := llmprovider.Global.GetRoleModelBy(role, identity); err == nil {
+			roles[role] = c
+		}
+	}
+	return roles
+}
+
 // initStandaloneWorkspace loads the workspace FS into context when no sandbox
 // is configured but the user selected a workspace (metadata["workspace_id"]).
 func (ast *Assistant) initStandaloneWorkspace(ctx *context.Context) {

agent/assistant/search.go

@@ -91,7 +91,7 @@ func parseSearchField(search any) *SearchIntent {
 		if v {
 			return &SearchIntent{
 				NeedSearch:  true,
-				SearchTypes: []string{"web", "kb", "db"},
+				SearchTypes: []string{"web"}, // TODO: 恢复 KB/DB 搜索时改回 []string{"web", "kb", "db"}
 				Confidence:  1.0,
 				Reason:      "enabled by hook",
 			}

agent/assistant/search_auth_integration_test.go

@@ -62,6 +62,7 @@ func (c *authTestCollections) cleanup(ctx context.Context, t *testing.T) {
 // FilterKBCollectionsByAuth filters collections based on user authorization.
 
 func TestKBCollectionAuthFilter(t *testing.T) {
+	t.Skip("KB/DB search temporarily disabled")
 	testutils.Prepare(t)
 	defer testutils.Clean(t)
 
@@ -155,6 +156,7 @@ func TestKBCollectionAuthFilter(t *testing.T) {
 // ========== DB Auth Wheres Tests ==========
 
 func TestDBAuthWheresFilter(t *testing.T) {
+	t.Skip("KB/DB search temporarily disabled")
 	// Note: This test doesn't need KB, just tests the BuildDBAuthWheres function
 	t.Run("TeamOnlyGeneratesCorrectWheres", func(t *testing.T) {
 		ctx := createAuthContext(TestUserA, TestTeam1, true, false)
@@ -273,6 +275,7 @@ func TestDBAuthWheresFilter(t *testing.T) {
 // ========== KB Search Integration Tests ==========
 
 func TestKBSearchIntegration(t *testing.T) {
+	t.Skip("KB/DB search temporarily disabled")
 	testutils.Prepare(t)
 	defer testutils.Clean(t)
 

agent/assistant/search_auto_full_test.go

@@ -52,23 +52,28 @@ func TestSearchAutoFull(t *testing.T) {
 		assert.Equal(t, 3, ast.Search.Web.MaxResults)
 	})
 
+	// KB/DB search temporarily disabled
 	t.Run("ShouldHaveKBSearchConfig", func(t *testing.T) {
+		t.Skip("KB/DB search temporarily disabled")
 		assert.NotNil(t, ast.Search.KB, "kb search config should be set")
 		assert.Equal(t, 0.7, ast.Search.KB.Threshold)
 		assert.False(t, ast.Search.KB.Graph)
 	})
 
 	t.Run("ShouldHaveDBSearchConfig", func(t *testing.T) {
+		t.Skip("KB/DB search temporarily disabled")
 		assert.NotNil(t, ast.Search.DB, "db search config should be set")
 		assert.Equal(t, 10, ast.Search.DB.MaxResults)
 	})
 
 	t.Run("ShouldHaveKBCollections", func(t *testing.T) {
+		t.Skip("KB/DB search temporarily disabled")
 		assert.NotNil(t, ast.KB, "kb config should be set")
 		assert.Contains(t, ast.KB.Collections, "test-collection")
 	})
 
 	t.Run("ShouldHaveDBModels", func(t *testing.T) {
+		t.Skip("KB/DB search temporarily disabled")
 		assert.NotNil(t, ast.DB, "db config should be set")
 		assert.Contains(t, ast.DB.Models, "user")
 		assert.Contains(t, ast.DB.Models, "article")
@@ -87,6 +92,7 @@ func TestSearchAutoFull(t *testing.T) {
 	})
 
 	t.Run("StreamShouldExecuteMultipleSearchTypes", func(t *testing.T) {
+		t.Skip("KB/DB search temporarily disabled")
 		// Get agent via assistant.Get (required for Stream)
 		agent, err := assistant.Get("tests.search-auto-full")
 		require.NoError(t, err)

agent/caller/caller.go

@@ -15,3 +15,7 @@ type AgentCaller interface {
 // AgentGetterFunc is a function type that gets an agent by ID
 // This should be set by the assistant package during initialization
 var AgentGetterFunc func(agentID string) (AgentCaller, error)
+
+// AssistantReloadFunc reloads a single assistant from disk after deploy.
+// Set by the assistant package during initialization.
+var AssistantReloadFunc func(id string) error

agent/caller/doc.go

@@ -0,0 +1,11 @@
+package caller
+
+import (
+	_ "embed"
+	"github.com/yaoapp/gou/doc"
+)
+
+//go:embed doc.yml
+var docYAML []byte
+
+func init() { doc.LoadYAML(docYAML) }

agent/caller/doc.yml

@@ -0,0 +1,13 @@
+group: agent
+type: process
+entries:
+  - name: Call
+    desc: Call an agent from contexts without agent.Context, enabling agent-to-agent communication
+    args:
+      - name: request
+        type: object
+        required: true
+        desc: "Request object with fields: assistant_id (string, required), messages (array of message objects, required), model (string, connector override), skip (object, skip config), metadata (object, passed to hooks), locale (string), route (string), chat_id (string, auto-generated if empty), timeout (number, seconds, default 600)"
+    return:
+      type: object
+      desc: "Result object: { agent_id (string), response (object, full agent response), content (string, extracted text), error (string, error message if failed) }"

agent/caller/process_e2e_test.go

@@ -273,14 +273,14 @@ func TestProcessCall_Timeout_Short(t *testing.T) {
 	testutils.Prepare(t)
 	defer testutils.Clean(t)
 
-	// Set timeout=2 seconds — LLM round-trip will certainly exceed this.
+	// Set timeout=1 second — LLM round-trip will certainly exceed this.
 	// Verifies that the timeout parameter is respected and produces an error.
 	proc := newLLMProcess(t, "agent.call", map[string]interface{}{
 		"assistant_id": "tests.simple-greeting",
 		"messages": []interface{}{
 			map[string]interface{}{"role": "user", "content": "Tell me a very long story about the history of computing."},
 		},
-		"timeout": 2,
+		"timeout": 1,
 	})
 
 	err := proc.Execute()

agent/content/content.go

@@ -77,7 +77,15 @@ func parseContentParts(ctx *agentContext.Context, message agentContext.Message,
 	for _, part := range content {
 		parsedPart, refs, err := parseContentPart(ctx, part, options)
 		if err != nil {
-			parts = append(parts, part)
+			if part.Type == agentContext.ContentImageURL {
+				parts = append(parts, agentContext.ContentPart{
+					Type: agentContext.ContentText,
+					Text: "[Image content could not be processed]",
+				})
+			} else {
+				parts = append(parts, part)
+			}
+			log.Error("Failed to parse content part type=%s: %v", part.Type, err)
 			continue
 		}
 		parts = append(parts, parsedPart)

agent/content/image/image.go

@@ -12,6 +12,7 @@ import (
 	"github.com/yaoapp/yao/agent/output/message"
 	searchTypes "github.com/yaoapp/yao/agent/search/types"
 	"github.com/yaoapp/yao/attachment"
+	toolsImage "github.com/yaoapp/yao/tools/image"
 )
 
 // Image handles image content
@@ -65,24 +66,27 @@ func (h *Image) Parse(ctx *agentContext.Context, content agentContext.ContentPar
 		return h.base64(ctx, content, visionFormat)
 	}
 
-	// Model doesn't support vision - check cache first, then use vision agent/MCP
-	// Try to get cached text (from attachment's content_preview)
+	// Model doesn't support vision - fallback chain:
+	// 1. Cache -> 2. Uses.Vision (explicit config) -> 3. tools/vision (auto) -> 4. Placeholder text
+
 	cachedText, found, err := h.readFromCache(ctx, content.ImageURL.URL)
 	if err == nil && found {
-		// Cache hit! Return as text content
 		return agentContext.ContentPart{
 			Type: agentContext.ContentText,
 			Text: cachedText,
 		}, nil, nil
 	}
 
-	// No cache, try to use vision agent/MCP
 	if h.options.CompletionOptions != nil && h.options.CompletionOptions.Uses != nil && h.options.CompletionOptions.Uses.Vision != "" {
 		return h.agent(ctx, content)
 	}
 
-	// No vision support and no vision tool specified, return error
-	return content, nil, fmt.Errorf("model doesn't support vision and no vision tool specified in uses.Vision")
+	if text, err := h.readImageWithTools(ctx, content); err == nil {
+		h.saveToCache(ctx, content.ImageURL.URL, text)
+		return agentContext.ContentPart{Type: agentContext.ContentText, Text: text}, nil, nil
+	}
+
+	return agentContext.ContentPart{Type: agentContext.ContentText, Text: "[Image content - vision model not available]"}, nil, nil
 }
 
 // base64 encodes image content to base64 (for vision support)
@@ -360,6 +364,37 @@ func (h *Image) callMCPVisionTool(ctx *agentContext.Context, serverID string, co
 	return result, err
 }
 
+// readImageWithTools calls tools/vision.ReadImage to convert image to text
+// using a vision-capable model resolved via llmprovider.
+func (h *Image) readImageWithTools(ctx *agentContext.Context, content agentContext.ContentPart) (string, error) {
+	if ctx.Authorized == nil {
+		return "", fmt.Errorf("no auth info available for vision model resolution")
+	}
+
+	src := wrapperToAttachURI(content.ImageURL.URL)
+
+	loadingID := h.sendLoading(ctx, i18n.T(ctx.Locale, "content.image.analyzing"))
+
+	resp, err := toolsImage.ReadImage(ctx.Context, src, "Please describe this image in detail.", 1080, ctx.Authorized, "")
+
+	h.sendLoadingDone(ctx, loadingID)
+
+	if err != nil {
+		return "", err
+	}
+	return resp.Content, nil
+}
+
+// wrapperToAttachURI converts __uploader://fileID to attach://uploader/fileID
+// format expected by tools/vision.readBytes.
+func wrapperToAttachURI(url string) string {
+	uploaderName, fileID, ok := attachment.Parse(url)
+	if !ok {
+		return url
+	}
+	return "attach://" + uploaderName + "/" + fileID
+}
+
 // sendLoading sends a loading message and returns the message ID
 // Returns empty string if SilentLoading is enabled
 func (h *Image) sendLoading(ctx *agentContext.Context, msg string) string {

agent/content/image/image_test.go

@@ -117,11 +117,12 @@ func TestParseWithoutVisionSupport(t *testing.T) {
 	}
 
 	handler := image.New(options)
-	_, _, err := handler.Parse(ctx, content)
+	result, _, err := handler.Parse(ctx, content)
 
-	// Should return error because no vision support and no vision tool specified
-	assert.Error(t, err)
-	assert.Contains(t, err.Error(), "no vision tool specified")
+	// Should return placeholder text (no error) when no vision support
+	assert.NoError(t, err)
+	assert.Equal(t, agentContext.ContentText, result.Type)
+	assert.Contains(t, result.Text, "Image content")
 }
 
 // TestParseWithEmptyURL tests parsing image with empty URL

agent/context/buffer.go

@@ -382,9 +382,14 @@ func (b *ChatBuffer) GetStepsForResume(finalStatus string) []*BufferedStep {
 		b.currentStep.Status = finalStatus
 	}
 
-	// Return all steps (they will all have the context for recovery)
-	result := make([]*BufferedStep, len(b.steps))
-	copy(result, b.steps)
+	// Only return steps with valid resume status (failed or interrupted)
+	result := make([]*BufferedStep, 0, len(b.steps))
+	for _, step := range b.steps {
+		if step.Status != ResumeStatusFailed && step.Status != ResumeStatusInterrupted {
+			continue
+		}
+		result = append(result, step)
+	}
 	return result
 }
 

agent/context/buffer_test.go

@@ -498,10 +498,10 @@ func TestBufferGetStepsForResume(t *testing.T) {
 
 		steps := buffer.GetStepsForResume(context.ResumeStatusFailed)
 		require.NotNil(t, steps)
-		assert.Len(t, steps, 2)
+		assert.Len(t, steps, 1)
 
-		// Current step should be marked as failed
-		assert.Equal(t, context.ResumeStatusFailed, steps[1].Status)
+		// Only the failed step should be returned
+		assert.Equal(t, context.ResumeStatusFailed, steps[0].Status)
 	})
 
 	t.Run("InterruptedRequest", func(t *testing.T) {
@@ -516,8 +516,8 @@ func TestBufferGetStepsForResume(t *testing.T) {
 
 		steps := buffer.GetStepsForResume(context.ResumeStatusInterrupted)
 		require.NotNil(t, steps)
-		assert.Len(t, steps, 3)
-		assert.Equal(t, context.ResumeStatusInterrupted, steps[2].Status)
+		assert.Len(t, steps, 1)
+		assert.Equal(t, context.ResumeStatusInterrupted, steps[0].Status)
 	})
 }
 
@@ -1014,10 +1014,10 @@ func TestBufferCompleteWorkflow(t *testing.T) {
 		// Get steps for resume
 		steps := buffer.GetStepsForResume(context.ResumeStatusInterrupted)
 		require.NotNil(t, steps)
-		assert.Len(t, steps, 2)
+		assert.Len(t, steps, 1)
 
-		// Last step should be interrupted with space snapshot
-		lastStep := steps[len(steps)-1]
+		// Only the interrupted step should be returned
+		lastStep := steps[0]
 		assert.Equal(t, context.ResumeStatusInterrupted, lastStep.Status)
 		assert.NotNil(t, lastStep.SpaceSnapshot)
 		assert.Equal(t, "previous conversation", lastStep.SpaceSnapshot["user_context"])

agent/context/grpc.go

@@ -6,7 +6,6 @@ import (
 	"fmt"
 	"net/http"
 
-	"github.com/yaoapp/gou/connector"
 	"github.com/yaoapp/gou/store"
 	"github.com/yaoapp/yao/openapi/oauth/types"
 )
@@ -63,9 +62,7 @@ func GetGRPCAgentRequest(parent context.Context, input GRPCAgentInput) ([]Messag
 	}
 
 	if connectorID := getStringOpt(rawOpts, "connector"); connectorID != "" {
-		if _, err := connector.Select(connectorID); err == nil {
-			opts.Connector = connectorID
-		}
+		opts.Connector = connectorID
 	}
 
 	ctx.Interrupt = NewInterruptController()

agent/context/jsapi_llm.go

@@ -14,6 +14,9 @@ type LlmAPI interface {
 	// Returns *llm.Result or error information
 	Stream(connector string, messages []interface{}, opts map[string]interface{}) interface{}
 
+	// GenerateImage generates an image from a text prompt using an image generation model
+	GenerateImage(connector string, prompt string, opts map[string]interface{}) interface{}
+
 	// Parallel LLM call methods - inspired by JavaScript Promise
 	// All waits for all LLM calls to complete (like Promise.all)
 	All(requests []interface{}) []interface{}
@@ -68,6 +71,9 @@ func (ctx *Context) newLlmObject(iso *v8go.Isolate) *v8go.ObjectTemplate {
 	// Single LLM call method
 	llmObj.Set("Stream", ctx.llmStreamMethod(iso))
 
+	// Image generation method
+	llmObj.Set("GenerateImage", ctx.llmGenerateImageMethod(iso))
+
 	// Parallel LLM call methods - inspired by JavaScript Promise
 	llmObj.Set("All", ctx.llmAllMethod(iso))
 	llmObj.Set("Any", ctx.llmAnyMethod(iso))
@@ -163,6 +169,54 @@ func (ctx *Context) llmStreamMethod(iso *v8go.Isolate) *v8go.FunctionTemplate {
 	})
 }
 
+// llmGenerateImageMethod implements ctx.llm.GenerateImage(connector, prompt, options?)
+// Usage: const result = ctx.llm.GenerateImage("dall-e-3", "A sunset over mountains", { size: "1024x1024" })
+// Returns: { connector, image (base64), format, error }
+func (ctx *Context) llmGenerateImageMethod(iso *v8go.Isolate) *v8go.FunctionTemplate {
+	return v8go.NewFunctionTemplate(iso, func(info *v8go.FunctionCallbackInfo) *v8go.Value {
+		v8ctx := info.Context()
+		args := info.Args()
+
+		if len(args) < 2 {
+			return bridge.JsException(v8ctx, "GenerateImage requires connector and prompt parameters")
+		}
+
+		if !args[0].IsString() {
+			return bridge.JsException(v8ctx, "connector must be a string")
+		}
+		connectorID := args[0].String()
+
+		if !args[1].IsString() {
+			return bridge.JsException(v8ctx, "prompt must be a string")
+		}
+		prompt := args[1].String()
+
+		var opts map[string]interface{}
+		if len(args) >= 3 && !args[2].IsUndefined() && !args[2].IsNull() {
+			goVal, err := bridge.GoValue(args[2], v8ctx)
+			if err == nil {
+				if optsMap, ok := goVal.(map[string]interface{}); ok {
+					opts = optsMap
+				}
+			}
+		}
+
+		llmAPI := ctx.Llm()
+		if llmAPI == nil {
+			return bridge.JsException(v8ctx, "LLM API not available")
+		}
+
+		result := llmAPI.GenerateImage(connectorID, prompt, opts)
+
+		jsVal, err := bridge.JsValue(v8ctx, result)
+		if err != nil {
+			return bridge.JsException(v8ctx, "failed to convert result: "+err.Error())
+		}
+
+		return jsVal
+	})
+}
+
 // llmAllMethod implements ctx.llm.All(requests, options?)
 // Usage: const results = ctx.llm.All([
 //

agent/context/openapi.go

@@ -9,7 +9,6 @@ import (
 	"strings"
 
 	"github.com/gin-gonic/gin"
-	"github.com/yaoapp/gou/connector"
 	"github.com/yaoapp/gou/store"
 	"github.com/yaoapp/yao/openapi/oauth/authorized"
 )
@@ -70,19 +69,9 @@ func GetCompletionRequest(c *gin.Context, cache store.Store) (*CompletionRequest
 		Mode:    GetMode(c, completionReq),
 	}
 
-	// Try to extract custom connector from model field
-	// If model is a valid connector ID, set it to opts.Connector
-	// Otherwise, keep the standard OpenAI-compatible behavior (model as assistant ID)
-	if completionReq != nil && completionReq.Model != "" {
-		// Check if model is a valid connector (not containing "-yao_" which indicates assistant ID format)
-		if !strings.Contains(completionReq.Model, "-yao_") {
-			// Try to validate if it's a real connector
-			if _, err := connector.Select(completionReq.Model); err == nil {
-				// It's a valid connector, use it
-				opts.Connector = completionReq.Model
-			}
-			// If not a valid connector, ignore it (keep opts.Connector empty to use assistant's default)
-		}
+	// Pass model as connector ID; downstream ResolveConnector handles validation + lazy loading
+	if completionReq != nil && completionReq.Model != "" && !strings.Contains(completionReq.Model, "-yao_") {
+		opts.Connector = completionReq.Model
 	}
 
 	// Initialize interrupt controller

agent/context/types.go

@@ -566,8 +566,9 @@ type Message struct {
 	ToolCallID *string `json:"tool_call_id,omitempty"` // Required for tool messages: tool call that this message is responding to
 
 	// Assistant message specific fields
-	ToolCalls []ToolCall `json:"tool_calls,omitempty"` // Optional for assistant: tool calls generated by the model
-	Refusal   *string    `json:"refusal,omitempty"`    // Optional for assistant: refusal message (null when not refusing)
+	ReasoningContent string     `json:"reasoning_content,omitempty"` // Optional for assistant: reasoning/thinking content (DeepSeek, OpenAI o-series)
+	ToolCalls        []ToolCall `json:"tool_calls,omitempty"`        // Optional for assistant: tool calls generated by the model
+	Refusal          *string    `json:"refusal,omitempty"`           // Optional for assistant: refusal message (null when not refusing)
 }
 
 // ContentPartType represents the type of content part

agent/llm/adapters/vision.go

@@ -53,19 +53,28 @@ func (a *VisionAdapter) removeImageContent(messages []context.Message) []context
 	for _, msg := range messages {
 		processedMsg := msg
 
-		// Handle multimodal content (array of map)
-		if contentParts, ok := msg.Content.([]map[string]interface{}); ok {
+		if contentParts, ok := msg.Content.([]context.ContentPart); ok {
+			filtered := make([]context.ContentPart, 0)
+			for _, part := range contentParts {
+				if part.Type != context.ContentImageURL {
+					filtered = append(filtered, part)
+				}
+			}
+			if len(filtered) == 0 {
+				processedMsg.Content = "[Image content not supported by this model]"
+			} else {
+				processedMsg.Content = filtered
+			}
+		} else if contentParts, ok := msg.Content.([]map[string]interface{}); ok {
 			filteredParts := make([]map[string]interface{}, 0)
 
 			for _, part := range contentParts {
 				partType, _ := part["type"].(string)
-				// Skip image content
 				if partType != "image_url" && partType != "image" {
 					filteredParts = append(filteredParts, part)
 				}
 			}
 
-			// If all parts were filtered out, add placeholder text
 			if len(filteredParts) == 0 {
 				processedMsg.Content = "[Image content not supported by this model]"
 			} else if len(filteredParts) == 1 {

agent/llm/capabilities.go

@@ -20,12 +20,21 @@ func GetCapabilities(connectorID string) *goullm.Capabilities {
 	return GetCapabilitiesFromConn(conn)
 }
 
-// GetCapabilitiesFromConn get the capabilities from a connector instance
+// GetCapabilitiesFromConn get the capabilities from a connector instance.
+// Prefers LLMConnector.GetCapabilities() when available, falls back to Setting() parsing.
 func GetCapabilitiesFromConn(conn connector.Connector) *goullm.Capabilities {
 	if conn == nil {
 		return getDefaultCapabilities()
 	}
 
+	// Prefer typed LLMConnector interface
+	if lc, ok := conn.(goullm.LLMConnector); ok {
+		if caps := lc.GetCapabilities(); caps != nil {
+			return caps
+		}
+	}
+
+	// Fallback to Setting() parsing for non-LLMConnector or nil capabilities
 	settings := conn.Setting()
 	if settings != nil {
 		if caps, ok := settings["capabilities"]; ok {
@@ -35,12 +44,54 @@ func GetCapabilitiesFromConn(conn connector.Connector) *goullm.Capabilities {
 			if capabilities, ok := caps.(goullm.Capabilities); ok {
 				return &capabilities
 			}
+			if capsMap, ok := caps.(map[string]interface{}); ok {
+				return capabilitiesFromMap(capsMap)
+			}
 		}
 	}
 
 	return getDefaultCapabilities()
 }
 
+// capabilitiesFromMap converts a JSON-deserialized map into goullm.Capabilities.
+func capabilitiesFromMap(m map[string]interface{}) *goullm.Capabilities {
+	caps := getDefaultCapabilities()
+	if v, ok := m["streaming"].(bool); ok {
+		caps.Streaming = v
+	}
+	if v, ok := m["tool_calls"].(bool); ok {
+		caps.ToolCalls = v
+	}
+	if v, ok := m["vision"]; ok {
+		caps.Vision = v
+	}
+	if v, ok := m["audio"].(bool); ok {
+		caps.Audio = v
+	}
+	if v, ok := m["stt"].(bool); ok {
+		caps.STT = v
+	}
+	if v, ok := m["reasoning"].(bool); ok {
+		caps.Reasoning = v
+	}
+	if v, ok := m["json"].(bool); ok {
+		caps.JSON = v
+	}
+	if v, ok := m["multimodal"].(bool); ok {
+		caps.Multimodal = v
+	}
+	if v, ok := m["temperature_adjustable"].(bool); ok {
+		caps.TemperatureAdjustable = v
+	}
+	if v, ok := m["embedding"].(bool); ok {
+		caps.Embedding = v
+	}
+	if v, ok := m["image_generation"].(bool); ok {
+		caps.ImageGeneration = v
+	}
+	return caps
+}
+
 // getDefaultCapabilities returns minimal default capabilities
 func getDefaultCapabilities() *goullm.Capabilities {
 	return &goullm.Capabilities{
@@ -65,26 +116,8 @@ func GetCapabilitiesMap(connectorID string) map[string]interface{} {
 	return ToMap(caps)
 }
 
-// ToMap converts Capabilities to map[string]interface{}
+// ToMap converts Capabilities to map[string]interface{}.
+// Delegates to the canonical Capabilities.ToMap() method in gou/llm.
 func ToMap(caps *goullm.Capabilities) map[string]interface{} {
-	if caps == nil {
-		return nil
-	}
-
-	result := make(map[string]interface{})
-
-	if caps.Vision != nil {
-		result["vision"] = caps.Vision
-	}
-
-	result["audio"] = caps.Audio
-	result["stt"] = caps.STT
-	result["tool_calls"] = caps.ToolCalls
-	result["reasoning"] = caps.Reasoning
-	result["streaming"] = caps.Streaming
-	result["json"] = caps.JSON
-	result["multimodal"] = caps.Multimodal
-	result["temperature_adjustable"] = caps.TemperatureAdjustable
-
-	return result
+	return caps.ToMap()
 }

agent/llm/doc.go

@@ -0,0 +1,11 @@
+package llm
+
+import (
+	_ "embed"
+	"github.com/yaoapp/gou/doc"
+)
+
+//go:embed doc.yml
+var docYAML []byte
+
+func init() { doc.LoadYAML(docYAML) }

agent/llm/doc.yml

@@ -0,0 +1,44 @@
+group: llm
+type: process
+entries:
+  - name: ChatCompletions
+    desc: Universal LLM chat completions that auto-detects connector type and routes accordingly
+    args:
+      - name: connector
+        type: string
+        required: true
+        desc: Connector ID (supports any type, e.g. openai, anthropic)
+      - name: messages
+        type: array
+        required: true
+        desc: "Message array in OpenAI format: each element is an object with role, content (string or multimodal array), and optional name, tool_call_id, tool_calls"
+      - name: opts
+        type: object
+        required: false
+        desc: "Completion options: temperature, max_tokens, and other model parameters"
+      - name: callback
+        type: function
+        required: false
+        desc: "Streaming callback function that receives data chunks; signature: func(data []byte) int"
+    return:
+      type: object
+      desc: "OpenAI-compatible response: { id, object, created, model, choices: [{ index, message: { role, content, tool_calls? }, finish_reason }], usage? }"
+
+  - name: ImageGeneration
+    desc: Generate an image from a text prompt using an image generation model
+    args:
+      - name: connector
+        type: string
+        required: true
+        desc: Connector ID for an image generation model (e.g. dall-e-3)
+      - name: prompt
+        type: string
+        required: true
+        desc: Text description of the image to generate
+      - name: opts
+        type: object
+        required: false
+        desc: "Generation options: size (1024x1024), quality, style, n, etc."
+    return:
+      type: object
+      desc: "Image generation result: { image (base64), format (png) }"

agent/llm/image.go

@@ -0,0 +1,183 @@
+package llm
+
+import (
+	"encoding/base64"
+	"encoding/json"
+	"fmt"
+	"io"
+	"net/http"
+	"strings"
+	"time"
+
+	"github.com/yaoapp/gou/connector"
+	gouhttp "github.com/yaoapp/gou/http"
+	goullm "github.com/yaoapp/gou/llm"
+)
+
+// ImageGenResponse holds the result of an image generation call.
+// Image is always base64 encoded; if the provider returns a URL, it is downloaded and converted.
+type ImageGenResponse struct {
+	Image  string `json:"image"`  // base64 encoded image data
+	Format string `json:"format"` // image format, e.g. "png", "jpeg"
+}
+
+// GenerateImage calls the /images/generations endpoint through the connector.
+// options may include: size, n, quality, style, model, etc.
+func GenerateImage(conn connector.Connector, prompt string, options map[string]interface{}) (*ImageGenResponse, error) {
+	host, key, authMode := resolveConnSettings(conn)
+	if host == "" {
+		return nil, fmt.Errorf("no host found in connector settings")
+	}
+	if key == "" {
+		return nil, fmt.Errorf("API key is not set")
+	}
+
+	if options == nil {
+		options = map[string]interface{}{}
+	}
+	options["prompt"] = prompt
+	if _, ok := options["model"]; !ok {
+		if lc, ok := conn.(goullm.LLMConnector); ok {
+			if m := lc.GetModel(); m != "" {
+				options["model"] = m
+			}
+		}
+	}
+
+	url := connector.BuildAPIURL(host, "/images/generations")
+	req := gouhttp.New(url)
+	req.SetHeader("Content-Type", "application/json")
+	setImageAuthHeaders(req, authMode, key)
+
+	resp := req.Post(options)
+	if resp.Status != 200 {
+		errMsg := extractAPIError(resp.Data)
+		return nil, fmt.Errorf("image generation failed (status %d, url %s): %s", resp.Status, url, errMsg)
+	}
+
+	return extractImageFromResponse(resp.Data)
+}
+
+func resolveConnSettings(conn connector.Connector) (host, key string, authMode goullm.AuthMode) {
+	authMode = goullm.AuthBearer
+	if lc, ok := conn.(goullm.LLMConnector); ok {
+		host = lc.GetURL()
+		key = lc.GetKey()
+		authMode = lc.GetAuthMode()
+	}
+	if host == "" || key == "" {
+		setting := conn.Setting()
+		if host == "" {
+			host, _ = setting["host"].(string)
+		}
+		if key == "" {
+			key, _ = setting["key"].(string)
+		}
+	}
+	return
+}
+
+func setImageAuthHeaders(req *gouhttp.Request, authMode goullm.AuthMode, key string) {
+	switch authMode {
+	case goullm.AuthAPIKey:
+		req.SetHeader("api-key", key)
+	case goullm.AuthXAPIKey:
+		req.SetHeader("x-api-key", key)
+	default:
+		req.SetHeader("Authorization", fmt.Sprintf("Bearer %s", key))
+	}
+}
+
+func extractImageFromResponse(data interface{}) (*ImageGenResponse, error) {
+	raw, err := json.Marshal(data)
+	if err != nil {
+		return nil, fmt.Errorf("marshal response: %w", err)
+	}
+
+	var parsed struct {
+		Data []struct {
+			B64JSON *string `json:"b64_json"`
+			URL     *string `json:"url"`
+		} `json:"data"`
+	}
+	if err := json.Unmarshal(raw, &parsed); err != nil {
+		return nil, fmt.Errorf("unmarshal response: %w", err)
+	}
+	if len(parsed.Data) == 0 {
+		return nil, fmt.Errorf("provider returned empty data array, no image was generated")
+	}
+
+	item := parsed.Data[0]
+
+	if item.B64JSON != nil && *item.B64JSON != "" {
+		return &ImageGenResponse{Image: *item.B64JSON, Format: "png"}, nil
+	}
+
+	if item.URL != nil && *item.URL != "" {
+		b64, format, err := downloadImageAsBase64(*item.URL)
+		if err != nil {
+			return nil, fmt.Errorf("provider returned url but download failed: %w", err)
+		}
+		return &ImageGenResponse{Image: b64, Format: format}, nil
+	}
+
+	return nil, fmt.Errorf("provider returned data but neither b64_json nor url field is present, the model may not support image generation")
+}
+
+func downloadImageAsBase64(imageURL string) (b64 string, format string, err error) {
+	client := &http.Client{Timeout: 30 * time.Second}
+	resp, err := client.Get(imageURL)
+	if err != nil {
+		return "", "", fmt.Errorf("http get: %w", err)
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode != 200 {
+		return "", "", fmt.Errorf("download returned status %d", resp.StatusCode)
+	}
+
+	body, err := io.ReadAll(resp.Body)
+	if err != nil {
+		return "", "", fmt.Errorf("read body: %w", err)
+	}
+	if len(body) == 0 {
+		return "", "", fmt.Errorf("downloaded image is empty")
+	}
+
+	format = "png"
+	ct := resp.Header.Get("Content-Type")
+	switch {
+	case strings.Contains(ct, "jpeg") || strings.Contains(ct, "jpg"):
+		format = "jpeg"
+	case strings.Contains(ct, "webp"):
+		format = "webp"
+	case strings.Contains(ct, "gif"):
+		format = "gif"
+	default:
+		if strings.Contains(imageURL, ".jpeg") || strings.Contains(imageURL, ".jpg") {
+			format = "jpeg"
+		} else if strings.Contains(imageURL, ".webp") {
+			format = "webp"
+		}
+	}
+
+	b64 = base64.StdEncoding.EncodeToString(body)
+	return b64, format, nil
+}
+
+func extractAPIError(data interface{}) string {
+	raw, err := json.Marshal(data)
+	if err != nil {
+		return fmt.Sprintf("%v", data)
+	}
+
+	var parsed struct {
+		Error struct {
+			Message string `json:"message"`
+		} `json:"error"`
+	}
+	if err := json.Unmarshal(raw, &parsed); err == nil && parsed.Error.Message != "" {
+		return parsed.Error.Message
+	}
+	return string(raw)
+}

agent/llm/image_test.go

@@ -0,0 +1,197 @@
+package llm
+
+import (
+	"encoding/base64"
+	"encoding/json"
+	"net/http"
+	"net/http/httptest"
+	"testing"
+)
+
+func TestExtractImageFromResponse_B64(t *testing.T) {
+	data := map[string]interface{}{
+		"data": []interface{}{
+			map[string]interface{}{
+				"b64_json": "iVBORw0KGgoAAAANS...",
+			},
+		},
+	}
+	resp, err := extractImageFromResponse(data)
+	if err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	if resp.Image != "iVBORw0KGgoAAAANS..." {
+		t.Errorf("got Image=%q, want %q", resp.Image, "iVBORw0KGgoAAAANS...")
+	}
+	if resp.Format != "png" {
+		t.Errorf("got Format=%q, want %q", resp.Format, "png")
+	}
+}
+
+func TestExtractImageFromResponse_URL(t *testing.T) {
+	fakeImage := []byte{0xFF, 0xD8, 0xFF, 0xE0, 0x00, 0x10} // fake JPEG header bytes
+	srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		w.Header().Set("Content-Type", "image/jpeg")
+		w.Write(fakeImage)
+	}))
+	defer srv.Close()
+
+	data := map[string]interface{}{
+		"data": []interface{}{
+			map[string]interface{}{
+				"b64_json": nil,
+				"url":      srv.URL + "/image_0.jpeg",
+			},
+		},
+	}
+	resp, err := extractImageFromResponse(data)
+	if err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	expected := base64.StdEncoding.EncodeToString(fakeImage)
+	if resp.Image != expected {
+		t.Errorf("got Image=%q, want %q", resp.Image, expected)
+	}
+	if resp.Format != "jpeg" {
+		t.Errorf("got Format=%q, want %q", resp.Format, "jpeg")
+	}
+}
+
+func TestExtractImageFromResponse_URLPng(t *testing.T) {
+	fakeImage := []byte{0x89, 0x50, 0x4E, 0x47} // PNG magic bytes
+	srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		w.Header().Set("Content-Type", "image/png")
+		w.Write(fakeImage)
+	}))
+	defer srv.Close()
+
+	data := map[string]interface{}{
+		"data": []interface{}{
+			map[string]interface{}{
+				"url": srv.URL + "/output.png",
+			},
+		},
+	}
+	resp, err := extractImageFromResponse(data)
+	if err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	if resp.Format != "png" {
+		t.Errorf("got Format=%q, want %q", resp.Format, "png")
+	}
+	if resp.Image == "" {
+		t.Error("expected non-empty base64 Image")
+	}
+}
+
+func TestExtractImageFromResponse_URLDownloadFail(t *testing.T) {
+	srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		w.WriteHeader(http.StatusNotFound)
+	}))
+	defer srv.Close()
+
+	data := map[string]interface{}{
+		"data": []interface{}{
+			map[string]interface{}{
+				"url": srv.URL + "/missing.png",
+			},
+		},
+	}
+	_, err := extractImageFromResponse(data)
+	if err == nil {
+		t.Error("expected error for failed download")
+	}
+}
+
+func TestExtractImageFromResponse_Empty(t *testing.T) {
+	data := map[string]interface{}{
+		"data": []interface{}{},
+	}
+	_, err := extractImageFromResponse(data)
+	if err == nil {
+		t.Error("expected error for empty data array")
+	}
+}
+
+func TestExtractImageFromResponse_NoData(t *testing.T) {
+	data := map[string]interface{}{}
+	_, err := extractImageFromResponse(data)
+	if err == nil {
+		t.Error("expected error for missing data field")
+	}
+}
+
+func TestExtractImageFromResponse_NullBoth(t *testing.T) {
+	data := map[string]interface{}{
+		"data": []interface{}{
+			map[string]interface{}{
+				"b64_json": nil,
+				"url":      nil,
+			},
+		},
+	}
+	_, err := extractImageFromResponse(data)
+	if err == nil {
+		t.Error("expected error when both b64_json and url are null")
+	}
+}
+
+func TestDownloadImageAsBase64(t *testing.T) {
+	payload := []byte("fake-png-data")
+	srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		w.Header().Set("Content-Type", "image/png")
+		w.Write(payload)
+	}))
+	defer srv.Close()
+
+	b64, format, err := downloadImageAsBase64(srv.URL + "/test.png")
+	if err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	if format != "png" {
+		t.Errorf("got format=%q, want %q", format, "png")
+	}
+	decoded, _ := base64.StdEncoding.DecodeString(b64)
+	if string(decoded) != string(payload) {
+		t.Errorf("decoded content mismatch")
+	}
+}
+
+func TestDownloadImageAsBase64_FormatFromURL(t *testing.T) {
+	srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		w.Header().Set("Content-Type", "application/octet-stream")
+		w.Write([]byte("data"))
+	}))
+	defer srv.Close()
+
+	_, format, err := downloadImageAsBase64(srv.URL + "/image.webp")
+	if err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	if format != "webp" {
+		t.Errorf("got format=%q, want %q (from URL fallback)", format, "webp")
+	}
+}
+
+func TestExtractAPIError_WithMessage(t *testing.T) {
+	data := map[string]interface{}{
+		"error": map[string]interface{}{
+			"message": "insufficient quota",
+		},
+	}
+	msg := extractAPIError(data)
+	if msg != "insufficient quota" {
+		t.Errorf("got %q, want %q", msg, "insufficient quota")
+	}
+}
+
+func TestExtractAPIError_NoMessage(t *testing.T) {
+	data := map[string]interface{}{
+		"something": "else",
+	}
+	msg := extractAPIError(data)
+	raw, _ := json.Marshal(data)
+	if msg != string(raw) {
+		t.Errorf("got %q, want raw JSON fallback", msg)
+	}
+}

agent/llm/jsapi.go

@@ -31,6 +31,37 @@ func SetJSAPIFactory() {
 	}
 }
 
+// GenerateImage implements LlmAPI.GenerateImage - generates an image from a text prompt
+func (api *JSAPI) GenerateImage(connectorID string, prompt string, opts map[string]interface{}) interface{} {
+	result := &ImageGenResult{
+		Connector: connectorID,
+	}
+
+	conn, err := connector.Select(connectorID)
+	if err != nil {
+		result.Error = fmt.Sprintf("failed to select connector %s: %v", connectorID, err)
+		return result
+	}
+
+	resp, err := GenerateImage(conn, prompt, opts)
+	if err != nil {
+		result.Error = fmt.Sprintf("image generation failed: %v", err)
+		return result
+	}
+
+	result.Image = resp.Image
+	result.Format = resp.Format
+	return result
+}
+
+// ImageGenResult is the return type for GenerateImage JSAPI
+type ImageGenResult struct {
+	Connector string `json:"connector"`
+	Image     string `json:"image,omitempty"`
+	Format    string `json:"format,omitempty"`
+	Error     string `json:"error,omitempty"`
+}
+
 // Stream implements LlmAPI.Stream - calls LLM with streaming output to ctx.Writer
 func (api *JSAPI) Stream(connectorID string, messages []interface{}, opts map[string]interface{}) interface{} {
 	return api.StreamWithHandler(connectorID, messages, opts, nil)

agent/llm/process.go

@@ -16,6 +16,7 @@ import (
 
 func init() {
 	process.Register("llm.ChatCompletions", ProcessChatCompletions)
+	process.Register("llm.ImageGeneration", ProcessImageGeneration)
 }
 
 // ProcessChatCompletions implements the llm.ChatCompletions Process.
@@ -155,6 +156,55 @@ func ProcessChatCompletions(p *process.Process) interface{} {
 	return toOpenAIFormat(response)
 }
 
+// ProcessImageGeneration implements the llm.ImageGeneration Process.
+//
+// Usage:
+//
+//	Process("llm.ImageGeneration", connectorID, prompt)
+//	Process("llm.ImageGeneration", connectorID, prompt, opts)
+//
+// Args:
+//   - connectorID (string): Connector ID for an image generation model
+//   - prompt      (string): Text description of the image to generate
+//   - opts        (map):    Optional. size, quality, style, n, etc.
+//
+// Returns: { image (base64), format (png) }
+func ProcessImageGeneration(p *process.Process) interface{} {
+	p.ValidateArgNums(2)
+
+	connectorID := p.ArgsString(0)
+	if connectorID == "" {
+		return newErrorResponse("llm.ImageGeneration: connector is required")
+	}
+
+	prompt := p.ArgsString(1)
+	if prompt == "" {
+		return newErrorResponse("llm.ImageGeneration: prompt is required")
+	}
+
+	var opts map[string]interface{}
+	if p.NumOfArgs() > 2 && p.Args[2] != nil {
+		if o, ok := p.Args[2].(map[string]interface{}); ok {
+			opts = o
+		}
+	}
+
+	conn, _, err := selectWithCapabilities(connectorID)
+	if err != nil {
+		return newErrorResponse(fmt.Sprintf("llm.ImageGeneration: connector %s not found: %v", connectorID, err))
+	}
+
+	resp, err := GenerateImage(conn, prompt, opts)
+	if err != nil {
+		return newErrorResponse(fmt.Sprintf("llm.ImageGeneration: %v", err))
+	}
+
+	return map[string]interface{}{
+		"image":  resp.Image,
+		"format": resp.Format,
+	}
+}
+
 // toOpenAIFormat converts CompletionResponse to OpenAI chat.completions format
 // for backward compatibility with code that consumed openai.chat.Completions.
 func toOpenAIFormat(resp *agentContext.CompletionResponse) map[string]interface{} {

agent/llm/providers/anthropic/anthropic.go

@@ -17,6 +17,7 @@ import (
 	"github.com/yaoapp/yao/agent/llm/adapters"
 	"github.com/yaoapp/yao/agent/llm/providers/base"
 	"github.com/yaoapp/yao/agent/output/message"
+	"github.com/yaoapp/yao/share"
 )
 
 // Provider Anthropic Messages API provider
@@ -44,11 +45,11 @@ func buildAdapters(cap *goullm.Capabilities) []adapters.CapabilityAdapter {
 	// Tool call adapter
 	result = append(result, adapters.NewToolCallAdapter(cap.ToolCalls))
 
-	// Vision adapter
+	// Vision adapter (always registered to strip unsupported image content)
 	visionSupport, visionFormat := context.GetVisionSupport(cap)
 	if visionSupport {
 		result = append(result, adapters.NewVisionAdapter(true, visionFormat))
-	} else if cap.Vision != nil {
+	} else {
 		result = append(result, adapters.NewVisionAdapter(false, context.VisionFormatNone))
 	}
 
@@ -201,21 +202,10 @@ func (p *Provider) streamWithRetry(ctx *context.Context, messages []context.Mess
 		return nil, fmt.Errorf("failed to build request body: %w", err)
 	}
 
-	// Get connector settings
-	setting := p.Connector.Setting()
-	host, ok := setting["host"].(string)
-	if !ok || host == "" {
-		return nil, fmt.Errorf("no host found in connector settings")
-	}
-
-	key, ok := setting["key"].(string)
-	if !ok || key == "" {
-		return nil, fmt.Errorf("API key is not set")
-	}
-
-	version := "2023-06-01"
-	if v, ok := setting["version"].(string); ok && v != "" {
-		version = v
+	// Get connector settings via LLMConnector or fallback
+	host, key, version, err := p.resolveHostKeyVersion()
+	if err != nil {
+		return nil, err
 	}
 
 	// Build URL: host/v1/messages
@@ -227,13 +217,13 @@ func (p *Provider) streamWithRetry(ctx *context.Context, messages []context.Mess
 		})
 	}
 
-	// Create HTTP request with Anthropic auth headers
+	// Create HTTP request with auth headers
 	req := http.New(url).
 		SetHeader("Content-Type", "application/json").
-		SetHeader("x-api-key", key).
 		SetHeader("anthropic-version", version).
 		SetHeader("Accept", "text/event-stream").
-		SetHeader("User-Agent", "YaoAgent/1.0 (+https://yaoagents.com)")
+		SetHeader("User-Agent", "YaoEngine/"+share.VERSION)
+	setAnthropicAuthHeaders(req, p.Connector, key)
 
 	// Accumulate response data
 	accumulator := &streamAccumulator{
@@ -678,31 +668,20 @@ func (p *Provider) postWithRetry(ctx *context.Context, messages []context.Messag
 		return nil, fmt.Errorf("failed to build request body: %w", err)
 	}
 
-	// Get connector settings
-	setting := p.Connector.Setting()
-	host, ok := setting["host"].(string)
-	if !ok || host == "" {
-		return nil, fmt.Errorf("no host found in connector settings")
-	}
-
-	key, ok := setting["key"].(string)
-	if !ok || key == "" {
-		return nil, fmt.Errorf("API key is not set")
-	}
-
-	version := "2023-06-01"
-	if v, ok := setting["version"].(string); ok && v != "" {
-		version = v
+	// Get connector settings via LLMConnector or fallback
+	host, key, version, err := p.resolveHostKeyVersion()
+	if err != nil {
+		return nil, err
 	}
 
 	url := buildAPIURL(host, "/messages")
 
-	// Create HTTP request
+	// Create HTTP request with auth headers
 	req := http.New(url).
 		SetHeader("Content-Type", "application/json").
-		SetHeader("x-api-key", key).
 		SetHeader("anthropic-version", version).
-		SetHeader("User-Agent", "YaoAgent/1.0 (+https://yaoagents.com)")
+		SetHeader("User-Agent", "YaoEngine/"+share.VERSION)
+	setAnthropicAuthHeaders(req, p.Connector, key)
 
 	resp := req.Post(requestBody)
 	if resp.Code != 200 {
@@ -915,6 +894,11 @@ func (p *Provider) buildRequestBody(messages []context.Message, options *context
 	} else if mt, ok := setting["max_tokens"].(int); ok && mt > 0 {
 		maxTokens = mt
 	}
+	if lc, ok := p.Connector.(goullm.LLMConnector); ok {
+		if caps := lc.GetCapabilities(); caps != nil && caps.MaxOutputTokens > 0 && maxTokens > caps.MaxOutputTokens {
+			maxTokens = caps.MaxOutputTokens
+		}
+	}
 	body["max_tokens"] = maxTokens
 
 	// Temperature
@@ -942,9 +926,13 @@ func (p *Provider) buildRequestBody(messages []context.Message, options *context
 		body["tool_choice"] = convertToolChoice(options.ToolChoice)
 	}
 
-	// Thinking configuration from connector settings
-	if thinking, exists := setting["thinking"]; exists && thinking != nil {
-		body["thinking"] = thinking
+	// Merge connector-level body params (thinking, etc.)
+	// filtered through the SupportedParams / default whitelist.
+	connParams := connector.FilterRequestBodyParams(setting, p.Connector)
+	for k, v := range connParams {
+		if _, exists := body[k]; !exists {
+			body[k] = v
+		}
 	}
 
 	return body, nil
@@ -1176,3 +1164,47 @@ func isRetryableError(err error) bool {
 
 	return false
 }
+
+// resolveHostKeyVersion extracts host, key, and version via LLMConnector or Setting().
+// Setting() is called at most once, and only when needed.
+func (p *Provider) resolveHostKeyVersion() (host, key, version string, err error) {
+	setting := p.Connector.Setting()
+
+	if lc, ok := p.Connector.(goullm.LLMConnector); ok {
+		host = lc.GetURL()
+		key = lc.GetKey()
+	} else {
+		host, _ = setting["host"].(string)
+		key, _ = setting["key"].(string)
+	}
+
+	// Version is Anthropic-specific, not on LLMConnector interface
+	version = "2023-06-01"
+	if v, ok := setting["version"].(string); ok && v != "" {
+		version = v
+	}
+
+	if host == "" {
+		return "", "", "", fmt.Errorf("no host found in connector settings")
+	}
+	if key == "" {
+		return "", "", "", fmt.Errorf("API key is not set")
+	}
+	return host, key, version, nil
+}
+
+// setAnthropicAuthHeaders sets auth headers based on LLMConnector.GetAuthMode().
+func setAnthropicAuthHeaders(req *http.Request, conn connector.Connector, key string) {
+	if lc, ok := conn.(goullm.LLMConnector); ok {
+		switch lc.GetAuthMode() {
+		case goullm.AuthAPIKey:
+			req.SetHeader("api-key", key)
+			return
+		case goullm.AuthBearer:
+			req.SetHeader("Authorization", fmt.Sprintf("Bearer %s", key))
+			return
+		}
+	}
+	// Default for Anthropic: x-api-key
+	req.SetHeader("x-api-key", key)
+}

agent/llm/providers/anthropic/anthropic_test.go

@@ -16,7 +16,7 @@ import (
 	"github.com/yaoapp/yao/test"
 )
 
-// testConnectorID uses the cheapest model (Claude Haiku 3) to save tokens
+// testConnectorID uses the cheapest model (Claude Haiku 4.5) to save tokens
 const testConnectorID = "claude.haiku-3_0"
 
 // TestAnthropicStreamBasic tests basic streaming completion with Anthropic API
@@ -214,7 +214,7 @@ func TestAnthropicStreamRetry(t *testing.T) {
 	connDSL := `{
 		"type": "anthropic",
 		"options": {
-			"model": "claude-3-haiku-20240307",
+			"model": "claude-haiku-4-5-20251001",
 			"key": "sk-ant-invalid-key-should-fail"
 		}
 	}`

agent/llm/providers/base/base.go

@@ -140,15 +140,30 @@ func (p *Provider) GetConnectorStringSetting(key string) (string, error) {
 
 // GetModel gets the model name from connector settings
 func (p *Provider) GetModel() (string, error) {
+	if lc, ok := p.Connector.(llm.LLMConnector); ok {
+		if m := lc.GetModel(); m != "" {
+			return m, nil
+		}
+	}
 	return p.GetConnectorStringSetting("model")
 }
 
 // GetAPIKey gets the API key from connector settings
 func (p *Provider) GetAPIKey() (string, error) {
+	if lc, ok := p.Connector.(llm.LLMConnector); ok {
+		if k := lc.GetKey(); k != "" {
+			return k, nil
+		}
+	}
 	return p.GetConnectorStringSetting("key")
 }
 
 // GetHost gets the host URL from connector settings
 func (p *Provider) GetHost() (string, error) {
+	if lc, ok := p.Connector.(llm.LLMConnector); ok {
+		if u := lc.GetURL(); u != "" {
+			return u, nil
+		}
+	}
 	return p.GetConnectorStringSetting("host")
 }

agent/llm/providers/factory.go

@@ -4,6 +4,7 @@ import (
 	"fmt"
 
 	"github.com/yaoapp/gou/connector"
+	goullm "github.com/yaoapp/gou/llm"
 	"github.com/yaoapp/yao/agent/context"
 	"github.com/yaoapp/yao/agent/llm/providers/anthropic"
 	"github.com/yaoapp/yao/agent/llm/providers/openai"
@@ -61,16 +62,23 @@ func DetectAPIFormat(conn connector.Connector) string {
 		return "openai"
 	}
 
-	// Check connector settings for host URL patterns as fallback
-	settings := conn.Setting()
-	if settings != nil {
-		if host, ok := settings["host"].(string); ok {
-			if contains(host, "anthropic.com") || contains(host, "api.kimi.com/coding") {
-				return "anthropic"
-			}
-			if contains(host, "deepseek.com") {
-				return "openai"
-			}
+	// Try LLMConnector for typed URL access, fall back to Setting() map
+	var host string
+	if lc, ok := conn.(goullm.LLMConnector); ok {
+		host = lc.GetURL()
+	}
+	if host == "" {
+		if settings := conn.Setting(); settings != nil {
+			host, _ = settings["host"].(string)
+		}
+	}
+
+	if host != "" {
+		if contains(host, "anthropic.com") || contains(host, "api.kimi.com/coding") {
+			return "anthropic"
+		}
+		if contains(host, "deepseek.com") {
+			return "openai"
 		}
 	}
 

agent/llm/providers/openai/openai.go

@@ -16,6 +16,7 @@ import (
 	"github.com/yaoapp/yao/agent/llm/adapters"
 	"github.com/yaoapp/yao/agent/llm/providers/base"
 	"github.com/yaoapp/yao/agent/output/message"
+	"github.com/yaoapp/yao/share"
 	"github.com/yaoapp/yao/utils/jsonschema"
 )
 
@@ -155,12 +156,11 @@ func buildAdapters(cap *goullm.Capabilities) []adapters.CapabilityAdapter {
 	// Tool call adapter
 	result = append(result, adapters.NewToolCallAdapter(cap.ToolCalls))
 
-	// Vision adapter
+	// Vision adapter (always registered to strip unsupported image content)
 	visionSupport, visionFormat := context.GetVisionSupport(cap)
 	if visionSupport {
 		result = append(result, adapters.NewVisionAdapter(true, visionFormat))
-	} else if cap.Vision != nil {
-		// Vision explicitly disabled, add adapter to remove image content
+	} else {
 		result = append(result, adapters.NewVisionAdapter(false, context.VisionFormatNone))
 	}
 
@@ -385,16 +385,10 @@ func (p *Provider) streamWithRetry(ctx *context.Context, messages []context.Mess
 		return nil, fmt.Errorf("failed to build request body: %w", err)
 	}
 
-	// Get connector settings
-	setting := p.Connector.Setting()
-	host, ok := setting["host"].(string)
-	if !ok || host == "" {
-		return nil, fmt.Errorf("no host found in connector settings")
-	}
-
-	key, ok := setting["key"].(string)
-	if !ok || key == "" {
-		return nil, fmt.Errorf("API key is not set")
+	// Get connector settings via LLMConnector or fallback
+	host, key, err := p.resolveHostKey()
+	if err != nil {
+		return nil, err
 	}
 
 	// Build URL
@@ -409,9 +403,9 @@ func (p *Provider) streamWithRetry(ctx *context.Context, messages []context.Mess
 	// Create HTTP request with proxy support
 	req := http.New(url).
 		SetHeader("Content-Type", "application/json").
-		SetHeader("Authorization", fmt.Sprintf("Bearer %s", key)).
 		SetHeader("Accept", "text/event-stream").
-		SetHeader("User-Agent", "YaoAgent/1.0 (+https://yaoagents.com)")
+		SetHeader("User-Agent", "YaoEngine/"+share.VERSION)
+	setAuthHeaders(req, p.Connector, key)
 
 	// Accumulate response data
 	accumulator := &streamAccumulator{
@@ -498,16 +492,18 @@ func (p *Provider) streamWithRetry(ctx *context.Context, messages []context.Mess
 				accumulator.role = delta.Role
 			}
 
-			// Handle reasoning content (DeepSeek R1)
-			if delta.ReasoningContent != "" {
-				// Start thinking message if not active
+			reasoningText := delta.ReasoningContent
+			if reasoningText == "" {
+				reasoningText = delta.Reasoning
+			}
+			if reasoningText != "" {
 				if !messageTracker.active || messageTracker.messageType != message.ChunkThinking {
 					messageTracker.startMessage(message.ChunkThinking, handler)
 				}
 
-				accumulator.reasoningContent += delta.ReasoningContent
+				accumulator.reasoningContent += reasoningText
 				if handler != nil {
-					handler(message.ChunkThinking, []byte(delta.ReasoningContent))
+					handler(message.ChunkThinking, []byte(reasoningText))
 					messageTracker.incrementChunk()
 				}
 			}
@@ -922,16 +918,10 @@ func (p *Provider) postWithRetry(ctx *context.Context, messages []context.Messag
 		return nil, fmt.Errorf("failed to build request body: %w", err)
 	}
 
-	// Get connector settings
-	setting := p.Connector.Setting()
-	host, ok := setting["host"].(string)
-	if !ok || host == "" {
-		return nil, fmt.Errorf("no host found in connector settings")
-	}
-
-	key, ok := setting["key"].(string)
-	if !ok || key == "" {
-		return nil, fmt.Errorf("API key is not set")
+	// Get connector settings via LLMConnector or fallback
+	host, key, err := p.resolveHostKey()
+	if err != nil {
+		return nil, err
 	}
 
 	// Build URL
@@ -940,8 +930,8 @@ func (p *Provider) postWithRetry(ctx *context.Context, messages []context.Messag
 	// Create HTTP request with proxy support
 	req := http.New(url).
 		SetHeader("Content-Type", "application/json").
-		SetHeader("Authorization", fmt.Sprintf("Bearer %s", key)).
-		SetHeader("User-Agent", "YaoAgent/1.0 (+https://yaoagents.com)")
+		SetHeader("User-Agent", "YaoEngine/"+share.VERSION)
+	setAuthHeaders(req, p.Connector, key)
 
 	// Make request
 	resp := req.Post(requestBody)
@@ -1006,7 +996,7 @@ func (p *Provider) postWithRetry(ctx *context.Context, messages []context.Messag
 		Model:             fullResp.Model,
 		Role:              string(choice.Message.Role),
 		Content:           content,
-		ReasoningContent:  choice.Message.ReasoningContent,
+		ReasoningContent:  reasoningOrFallback(choice.Message.ReasoningContent, choice.Message.Reasoning),
 		ToolCalls:         choice.Message.ToolCalls,
 		FinishReason:      choice.FinishReason,
 		Usage:             fullResp.Usage,
@@ -1040,12 +1030,6 @@ func (p *Provider) buildRequestBody(messages []context.Message, options *context
 		return nil, fmt.Errorf("model is not set in connector")
 	}
 
-	// Get thinking setting from connector (for models that support reasoning/thinking mode)
-	var thinkingSetting interface{}
-	if thinking, exists := setting["thinking"]; exists {
-		thinkingSetting = thinking
-	}
-
 	// Convert messages to API format
 	apiMessages := make([]map[string]interface{}, 0, len(messages))
 	for _, msg := range messages {
@@ -1099,6 +1083,10 @@ func (p *Provider) buildRequestBody(messages []context.Message, options *context
 			apiMsg["tool_calls"] = msg.ToolCalls
 		}
 
+		if msg.ReasoningContent != "" {
+			apiMsg["reasoning_content"] = msg.ReasoningContent
+		}
+
 		if msg.Refusal != nil {
 			apiMsg["refusal"] = *msg.Refusal
 		}
@@ -1120,11 +1108,19 @@ func (p *Provider) buildRequestBody(messages []context.Message, options *context
 
 	// Use max_completion_tokens (modern API parameter for GPT-5+)
 	// GPT-5 models only support max_completion_tokens (not max_tokens)
-	if options.MaxCompletionTokens != nil {
-		body["max_completion_tokens"] = *options.MaxCompletionTokens
-	} else if options.MaxTokens != nil {
-		// Fallback: convert MaxTokens to max_completion_tokens for compatibility
-		body["max_completion_tokens"] = *options.MaxTokens
+	if options.MaxCompletionTokens != nil || options.MaxTokens != nil {
+		maxTokens := 0
+		if options.MaxCompletionTokens != nil {
+			maxTokens = *options.MaxCompletionTokens
+		} else {
+			maxTokens = *options.MaxTokens
+		}
+		if lc, ok := p.Connector.(goullm.LLMConnector); ok {
+			if caps := lc.GetCapabilities(); caps != nil && caps.MaxOutputTokens > 0 && maxTokens > caps.MaxOutputTokens {
+				maxTokens = caps.MaxOutputTokens
+			}
+		}
+		body["max_completion_tokens"] = maxTokens
 	}
 
 	if options.TopP != nil {
@@ -1202,9 +1198,14 @@ func (p *Provider) buildRequestBody(messages []context.Message, options *context
 		body["audio"] = options.Audio
 	}
 
-	// Add thinking parameter for models that support reasoning/thinking mode
-	if thinkingSetting != nil {
-		body["thinking"] = thinkingSetting
+	// Merge connector-level body params (thinking, reasoning, enable_thinking, etc.)
+	// filtered through the SupportedParams / default whitelist.
+	// CompletionOptions (per-call) take precedence over connector defaults.
+	connParams := connector.FilterRequestBodyParams(setting, p.Connector)
+	for k, v := range connParams {
+		if _, exists := body[k]; !exists {
+			body[k] = v
+		}
 	}
 
 	return body, nil
@@ -1289,3 +1290,44 @@ func isRetryableError(err error) bool {
 
 	return false
 }
+
+// resolveHostKey extracts host and key via LLMConnector or Setting() fallback.
+func (p *Provider) resolveHostKey() (host, key string, err error) {
+	if lc, ok := p.Connector.(goullm.LLMConnector); ok {
+		host = lc.GetURL()
+		key = lc.GetKey()
+	} else {
+		setting := p.Connector.Setting()
+		host, _ = setting["host"].(string)
+		key, _ = setting["key"].(string)
+	}
+	if host == "" {
+		return "", "", fmt.Errorf("no host found in connector settings")
+	}
+	if key == "" {
+		return "", "", fmt.Errorf("API key is not set")
+	}
+	return host, key, nil
+}
+
+// setAuthHeaders sets authentication headers based on LLMConnector.GetAuthMode().
+func setAuthHeaders(req *http.Request, conn connector.Connector, key string) {
+	if lc, ok := conn.(goullm.LLMConnector); ok {
+		switch lc.GetAuthMode() {
+		case goullm.AuthAPIKey:
+			req.SetHeader("api-key", key)
+			return
+		case goullm.AuthXAPIKey:
+			req.SetHeader("x-api-key", key)
+			return
+		}
+	}
+	req.SetHeader("Authorization", fmt.Sprintf("Bearer %s", key))
+}
+
+func reasoningOrFallback(primary, fallback string) string {
+	if primary != "" {
+		return primary
+	}
+	return fallback
+}

agent/llm/providers/openai/types.go

@@ -30,7 +30,8 @@ type Delta struct {
 type DeltaContent struct {
 	Role             string          `json:"role,omitempty"`
 	Content          string          `json:"content,omitempty"`
-	ReasoningContent string          `json:"reasoning_content,omitempty"` // DeepSeek R1 reasoning
+	ReasoningContent string          `json:"reasoning_content,omitempty"` // DeepSeek direct API
+	Reasoning        string          `json:"reasoning,omitempty"`         // OpenRouter
 	ToolCalls        []ToolCallDelta `json:"tool_calls,omitempty"`
 	Refusal          string          `json:"refusal,omitempty"`
 }
@@ -60,7 +61,8 @@ type CompletionResponseFull struct {
 		Message struct {
 			Role             context.MessageRole `json:"role"`
 			Content          interface{}         `json:"content,omitempty"`           // string or array
-			ReasoningContent string              `json:"reasoning_content,omitempty"` // DeepSeek R1 reasoning
+			ReasoningContent string              `json:"reasoning_content,omitempty"` // DeepSeek direct API
+			Reasoning        string              `json:"reasoning,omitempty"`         // OpenRouter
 			ToolCalls        []context.ToolCall  `json:"tool_calls,omitempty"`
 			Refusal          *string             `json:"refusal,omitempty"`
 		} `json:"message"`

agent/llm/resolve.go

@@ -0,0 +1,94 @@
+package llm
+
+import (
+	"fmt"
+	"strings"
+
+	"github.com/yaoapp/gou/connector"
+	goullm "github.com/yaoapp/gou/llm"
+	"github.com/yaoapp/yao/llmprovider"
+)
+
+// RolePrefix marks a Connector field value as a role reference (e.g. "use::light").
+const RolePrefix = "use::"
+
+// ResolveConnector resolves an LLM connector using a unified priority chain.
+//
+// connectorID may be:
+//   - explicit connector ID (e.g. "openai.gpt-4o") — resolved directly
+//   - role reference with prefix (e.g. "use::light") — resolved via llmprovider roles
+//   - empty string — falls back to the "default" role
+//
+// Priority for role-based resolution:
+//  1. GetRoleBy(role, identity) — user/team scoped setting
+//  2. GetRole(role) — system-level default for that role
+//  3. GetRoleBy("default", identity) — fallback to "default" role (user/team)
+//  4. GetRole("default") — fallback to "default" role (system)
+//  5. error — caller decides whether to apply legacy fallback
+func ResolveConnector(connectorID string, identity llmprovider.Identity) (connector.Connector, *goullm.Capabilities, error) {
+
+	// Parse use:: prefix to extract role
+	role := ""
+	if strings.HasPrefix(connectorID, RolePrefix) {
+		role = strings.TrimPrefix(connectorID, RolePrefix)
+		connectorID = ""
+	}
+
+	// Explicit connector ID takes highest priority
+	if connectorID != "" {
+		return selectWithCapabilities(connectorID)
+	}
+
+	// Empty connector with no role → treat as "default"
+	if role == "" {
+		role = "default"
+	}
+
+	if llmprovider.Global == nil {
+		return nil, nil, fmt.Errorf("llmprovider not initialized and no explicit connector specified")
+	}
+
+	// Resolve by the specified role (e.g. "light", "vision")
+	if role != "default" {
+		if identity != nil {
+			if cid, err := llmprovider.Global.GetRoleBy(role, identity); err == nil && cid != "" {
+				if conn, caps, err := selectWithCapabilities(cid); err == nil {
+					return conn, caps, nil
+				}
+			}
+		}
+		if cid, err := llmprovider.Global.GetRole(role); err == nil && cid != "" {
+			if conn, caps, err := selectWithCapabilities(cid); err == nil {
+				return conn, caps, nil
+			}
+		}
+	}
+
+	// Fallback to "default" role
+	if identity != nil {
+		if cid, err := llmprovider.Global.GetRoleBy("default", identity); err == nil && cid != "" {
+			if conn, caps, err := selectWithCapabilities(cid); err == nil {
+				return conn, caps, nil
+			}
+		}
+	}
+	if cid, err := llmprovider.Global.GetRole("default"); err == nil && cid != "" {
+		if conn, caps, err := selectWithCapabilities(cid); err == nil {
+			return conn, caps, nil
+		}
+	}
+
+	return nil, nil, fmt.Errorf("no connector resolved for role %q", role)
+}
+
+func selectWithCapabilities(connectorID string) (connector.Connector, *goullm.Capabilities, error) {
+	conn, err := connector.Select(connectorID)
+	if err != nil && llmprovider.Global != nil {
+		conn, err = llmprovider.Global.GetModel(connectorID)
+	}
+	if err != nil {
+		return nil, nil, err
+	}
+	caps := GetCapabilitiesFromConn(conn)
+	return conn, caps, nil
+}

agent/llm/resolve_test.go

@@ -0,0 +1,171 @@
+package llm_test
+
+import (
+	"os"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+	"github.com/yaoapp/gou/connector"
+	"github.com/yaoapp/gou/store"
+	"github.com/yaoapp/yao/agent/llm"
+	"github.com/yaoapp/yao/config"
+	"github.com/yaoapp/yao/llmprovider"
+	"github.com/yaoapp/yao/setting"
+	"github.com/yaoapp/yao/test"
+)
+
+func TestMain(m *testing.M) {
+	test.Prepare(nil, config.Conf)
+	defer test.Clean()
+	os.Exit(m.Run())
+}
+
+type mockIdentity struct {
+	UserID string
+	TeamID string
+}
+
+func (m *mockIdentity) GetUserID() string { return m.UserID }
+func (m *mockIdentity) GetTeamID() string { return m.TeamID }
+
+func setupResolveTest(t *testing.T) string {
+	t.Helper()
+	test.Prepare(t, config.Conf)
+
+	err := setting.Init()
+	require.NoError(t, err)
+
+	err = llmprovider.Init()
+	require.NoError(t, err)
+
+	connIDs := connector.AIConnectors
+	if len(connIDs) == 0 {
+		t.Skip("no AI connectors available in test env")
+	}
+
+	cid := connIDs[0].Value
+
+	t.Cleanup(func() {
+		s, _ := store.Get("__yao.store")
+		if s != nil {
+			s.Del("llmprovider:*")
+		}
+		c, _ := store.Get("__yao.cache")
+		if c != nil {
+			c.Del("llmprovider:*")
+		}
+		test.Clean()
+	})
+
+	return cid
+}
+
+// --- use:: prefix tests ---
+
+func TestResolveConnector_UseLight(t *testing.T) {
+	cid := setupResolveTest(t)
+
+	err := llmprovider.Global.SetDefaults(map[string]string{
+		"default": cid,
+		"light":   cid,
+	})
+	require.NoError(t, err)
+
+	conn, caps, err := llm.ResolveConnector("use::light", nil)
+	require.NoError(t, err)
+	assert.NotNil(t, conn)
+	assert.NotNil(t, caps)
+}
+
+func TestResolveConnector_UseDefault(t *testing.T) {
+	cid := setupResolveTest(t)
+
+	err := llmprovider.Global.SetDefaults(map[string]string{
+		"default": cid,
+	})
+	require.NoError(t, err)
+
+	conn, caps, err := llm.ResolveConnector("use::default", nil)
+	require.NoError(t, err)
+	assert.NotNil(t, conn)
+	assert.NotNil(t, caps)
+}
+
+func TestResolveConnector_UseLightWithIdentity(t *testing.T) {
+	cid := setupResolveTest(t)
+
+	err := llmprovider.Global.SetDefaults(map[string]string{
+		"default": cid,
+		"light":   cid,
+	})
+	require.NoError(t, err)
+
+	conn, caps, err := llm.ResolveConnector("use::light", &mockIdentity{UserID: "u1", TeamID: "t1"})
+	require.NoError(t, err)
+	assert.NotNil(t, conn)
+	assert.NotNil(t, caps)
+}
+
+func TestResolveConnector_UseLightNoProvider(t *testing.T) {
+	test.Prepare(t, config.Conf)
+	defer test.Clean()
+
+	saved := llmprovider.Global
+	llmprovider.Global = nil
+	defer func() { llmprovider.Global = saved }()
+
+	_, _, err := llm.ResolveConnector("use::light", nil)
+	assert.Error(t, err)
+}
+
+// --- Explicit connector tests ---
+
+func TestResolveConnector_ExplicitID(t *testing.T) {
+	cid := setupResolveTest(t)
+
+	conn, caps, err := llm.ResolveConnector(cid, nil)
+	require.NoError(t, err)
+	assert.NotNil(t, conn)
+	assert.NotNil(t, caps)
+}
+
+func TestResolveConnector_ExplicitIDPriority(t *testing.T) {
+	cid := setupResolveTest(t)
+
+	err := llmprovider.Global.SetDefaults(map[string]string{
+		"default": cid,
+		"light":   cid,
+	})
+	require.NoError(t, err)
+
+	// Explicit connector ID is NOT a use:: prefix, so it takes priority
+	conn, caps, err := llm.ResolveConnector(cid, &mockIdentity{UserID: "u1"})
+	require.NoError(t, err)
+	assert.NotNil(t, conn)
+	assert.NotNil(t, caps)
+}
+
+func TestResolveConnector_InvalidID(t *testing.T) {
+	setupResolveTest(t)
+
+	_, _, err := llm.ResolveConnector("nonexistent-connector-xyz", nil)
+	assert.Error(t, err)
+}
+
+// --- Empty connector fallback ---
+
+func TestResolveConnector_EmptyFallbackDefault(t *testing.T) {
+	cid := setupResolveTest(t)
+
+	err := llmprovider.Global.SetDefaults(map[string]string{
+		"default": cid,
+	})
+	require.NoError(t, err)
+
+	// Empty string → treated as use::default
+	conn, caps, err := llm.ResolveConnector("", nil)
+	require.NoError(t, err)
+	assert.NotNil(t, conn)
+	assert.NotNil(t, caps)
+}

agent/load.go

@@ -19,6 +19,7 @@ import (
 	"github.com/yaoapp/yao/agent/store/xun"
 	"github.com/yaoapp/yao/agent/types"
 	"github.com/yaoapp/yao/config"
+	"github.com/yaoapp/yao/llmprovider"
 )
 
 var agentDSL *types.DSL
@@ -226,15 +227,18 @@ func initAssistant() error {
 	// Set system agents configuration
 	if agentDSL.System != nil {
 		assistant.SetSystemConfig(&assistant.SystemConfig{
-			Default:    agentDSL.System.Default,
-			Keyword:    agentDSL.System.Keyword,
-			QueryDSL:   agentDSL.System.QueryDSL,
-			Title:      agentDSL.System.Title,
-			Prompt:     agentDSL.System.Prompt,
-			NeedSearch: agentDSL.System.NeedSearch,
-			Entity:     agentDSL.System.Entity,
-			Vision:     agentDSL.System.Vision,
-			Voice:      agentDSL.System.Voice,
+			Default:     agentDSL.System.Default,
+			Light:       agentDSL.System.Light,
+			Vision:      agentDSL.System.Vision,
+			Audio:       agentDSL.System.Audio,
+			Heavy:       agentDSL.System.Heavy,
+			Keyword:     agentDSL.System.Keyword,
+			QueryDSL:    agentDSL.System.QueryDSL,
+			Title:       agentDSL.System.Title,
+			Prompt:      agentDSL.System.Prompt,
+			RobotPrompt: agentDSL.System.RobotPrompt,
+			NeedSearch:  agentDSL.System.NeedSearch,
+			Entity:      agentDSL.System.Entity,
 		})
 	}
 
@@ -453,6 +457,22 @@ func GetSearchConfig() *searchTypes.Config {
 	return agentDSL.Search
 }
 
+// SyncLLMDefaults writes the agent.yml system role defaults into setting.Global.
+// Must be called after both llmprovider.Init() and setting.Init() have completed.
+func SyncLLMDefaults() error {
+	if agentDSL == nil || agentDSL.System == nil {
+		return nil
+	}
+	if llmprovider.Global == nil {
+		return fmt.Errorf("llmprovider.Global not initialized")
+	}
+	roles := buildSystemRoles(agentDSL.System)
+	if len(roles) == 0 {
+		return nil
+	}
+	return llmprovider.Global.SetDefaults(roles)
+}
+
 // defaultAssistant get the default assistant
 func defaultAssistant() (*assistant.Assistant, error) {
 	if agentDSL.Uses == nil || agentDSL.Uses.Default == "" {
@@ -461,12 +481,34 @@ func defaultAssistant() (*assistant.Assistant, error) {
 	return assistant.Get(agentDSL.Uses.Default)
 }
 
+// buildSystemRoles converts the System config block into a role→connectorID map
+// for llmprovider.SetDefaults. Only role-level keys are written here; per-agent
+// overrides (keyword, title, querydsl, etc.) are consumed by resolveSystemConnector.
+func buildSystemRoles(sys *types.System) map[string]string {
+	roles := make(map[string]string)
+	add := func(role, cid string) {
+		if cid != "" {
+			roles[role] = cid
+		}
+	}
+	add("default", sys.Default)
+	add("light", sys.Light)
+	add("vision", sys.Vision)
+	add("audio", sys.Audio)
+	add("heavy", sys.Heavy)
+	return roles
+}
+
 // resolveEnvStrings resolves $ENV.XXX references in agent.yml string fields.
 // agent.yml is parsed via yaml.Unmarshal which does not handle $ENV substitution,
 // unlike connector files which call helper.EnvString explicitly during Register.
 func resolveEnvStrings(setting *types.DSL) {
 	if setting.System != nil {
 		setting.System.Default = helper.EnvString(setting.System.Default)
+		setting.System.Light = helper.EnvString(setting.System.Light)
+		setting.System.Vision = helper.EnvString(setting.System.Vision)
+		setting.System.Audio = helper.EnvString(setting.System.Audio)
+		setting.System.Heavy = helper.EnvString(setting.System.Heavy)
 		setting.System.Keyword = helper.EnvString(setting.System.Keyword)
 		setting.System.QueryDSL = helper.EnvString(setting.System.QueryDSL)
 		setting.System.Title = helper.EnvString(setting.System.Title)
@@ -474,8 +516,6 @@ func resolveEnvStrings(setting *types.DSL) {
 		setting.System.RobotPrompt = helper.EnvString(setting.System.RobotPrompt)
 		setting.System.NeedSearch = helper.EnvString(setting.System.NeedSearch)
 		setting.System.Entity = helper.EnvString(setting.System.Entity)
-		setting.System.Vision = helper.EnvString(setting.System.Vision)
-		setting.System.Voice = helper.EnvString(setting.System.Voice)
 	}
 
 	if setting.Uses != nil {

agent/load_test.go

@@ -229,7 +229,7 @@ func TestResolveEnvStrings(t *testing.T) {
 				NeedSearch:  "$ENV.TEST_CONNECTOR",
 				Entity:      "$ENV.TEST_CONNECTOR",
 				Vision:      "$ENV.TEST_CONNECTOR",
-				Voice:       "$ENV.TEST_CONNECTOR",
+				Audio:       "$ENV.TEST_CONNECTOR",
 			},
 		}
 		resolveEnvStrings(setting)
@@ -243,24 +243,24 @@ func TestResolveEnvStrings(t *testing.T) {
 		assert.Equal(t, "openai.gpt-5", setting.System.NeedSearch)
 		assert.Equal(t, "openai.gpt-5", setting.System.Entity)
 		assert.Equal(t, "openai.gpt-5", setting.System.Vision)
-		assert.Equal(t, "openai.gpt-5", setting.System.Voice)
+		assert.Equal(t, "openai.gpt-5", setting.System.Audio)
 	})
 
-	t.Run("SystemVisionVoiceSeparateEnv", func(t *testing.T) {
+	t.Run("SystemVisionAudioSeparateEnv", func(t *testing.T) {
 		t.Setenv("TEST_VISION_CONN", "openai.gpt-4o")
-		t.Setenv("TEST_VOICE_CONN", "whisper-1")
+		t.Setenv("TEST_AUDIO_CONN", "whisper-1")
 		setting := &types.DSL{
 			System: &types.System{
 				Default: "$ENV.TEST_CONNECTOR",
 				Vision:  "$ENV.TEST_VISION_CONN",
-				Voice:   "$ENV.TEST_VOICE_CONN",
+				Audio:   "$ENV.TEST_AUDIO_CONN",
 			},
 		}
 		resolveEnvStrings(setting)
 
 		assert.Equal(t, "openai.gpt-5", setting.System.Default)
 		assert.Equal(t, "openai.gpt-4o", setting.System.Vision)
-		assert.Equal(t, "whisper-1", setting.System.Voice)
+		assert.Equal(t, "whisper-1", setting.System.Audio)
 	})
 
 	t.Run("UsesFields", func(t *testing.T) {

agent/robot/api/trigger.go

@@ -111,6 +111,7 @@ func triggerHuman(ctx *types.Context, mgr managerInterface, memberID string, req
 		Messages:     req.Messages,
 		PlanTime:     req.PlanAt,
 		ExecutorMode: req.ExecutorMode,
+		Locale:       req.Locale,
 	}
 
 	// Call manager's Intervene

agent/robot/doc.go

@@ -0,0 +1,11 @@
+package robot
+
+import (
+	_ "embed"
+	"github.com/yaoapp/gou/doc"
+)
+
+//go:embed doc.yml
+var docYAML []byte
+
+func init() { doc.LoadYAML(docYAML) }

agent/robot/doc.yml

@@ -0,0 +1,80 @@
+group: robot
+type: process
+entries:
+  - name: get
+    desc: Get a robot's details by member ID
+    args:
+      - name: memberID
+        type: string
+        required: true
+        desc: The member ID of the robot to retrieve
+    return:
+      type: object
+      desc: Robot detail object
+
+  - name: list
+    desc: List all robots with optional filtering and pagination
+    args:
+      - name: filter
+        type: object
+        required: false
+        desc: "Filter options: page (number), pagesize (number), status (string), search (string, keywords), team_id (string)"
+    return:
+      type: object
+      desc: Paginated list of robots
+
+  - name: status
+    desc: Get the current status of a robot by member ID
+    args:
+      - name: memberID
+        type: string
+        required: true
+        desc: The member ID of the robot
+    return:
+      type: object
+      desc: Robot status object
+
+  - name: executions
+    desc: List executions for a robot with optional filtering and pagination
+    args:
+      - name: memberID
+        type: string
+        required: true
+        desc: The member ID of the robot
+      - name: filter
+        type: object
+        required: false
+        desc: "Filter options: page (number), pagesize (number), status (string, execution status), trigger (string, trigger type)"
+    return:
+      type: object
+      desc: Paginated list of execution records
+
+  - name: execution
+    desc: Get a specific execution record by member ID and execution ID
+    args:
+      - name: memberID
+        type: string
+        required: true
+        desc: The member ID of the robot (reserved for permission scoping)
+      - name: executionID
+        type: string
+        required: true
+        desc: The execution ID to retrieve
+    return:
+      type: object
+      desc: Execution status and details
+
+  - name: updateChatTitle
+    desc: Update the title of a chat session
+    args:
+      - name: chatID
+        type: string
+        required: true
+        desc: The chat session ID to update
+      - name: title
+        type: string
+        required: true
+        desc: The new title for the chat session
+    return:
+      type: "null"
+      desc: Returns null on success

agent/robot/events/delivery.go

@@ -13,6 +13,8 @@ import (
 	"strings"
 	"time"
 
+	"path/filepath"
+
 	"github.com/yaoapp/gou/process"
 	"github.com/yaoapp/gou/text"
 	agentcontext "github.com/yaoapp/yao/agent/context"
@@ -21,6 +23,7 @@ import (
 	eventtypes "github.com/yaoapp/yao/event/types"
 	"github.com/yaoapp/yao/messenger"
 	messengerTypes "github.com/yaoapp/yao/messenger/types"
+	"github.com/yaoapp/yao/workspace"
 )
 
 // handleDelivery routes delivery content to configured channels (email, webhook, process).
@@ -52,6 +55,10 @@ func (h *robotHandler) handleDelivery(ctx context.Context, ev *eventtypes.Event,
 		return
 	}
 
+	if ev.Auth != nil {
+		ctx = context.WithValue(ctx, "identity", ev.Auth)
+	}
+
 	deliveryCtx := &robottypes.DeliveryContext{
 		MemberID:    payload.MemberID,
 		ExecutionID: payload.ExecutionID,
@@ -428,6 +435,15 @@ func convertAttachments(ctx context.Context, attachments []robottypes.DeliveryAt
 
 	result := make([]messengerTypes.Attachment, 0, len(attachments))
 	for _, att := range attachments {
+		// Handle workspace:// URIs — read file content from workspace FS
+		if strings.HasPrefix(att.File, "workspace://") {
+			wsAtt := convertWorkspaceAttachment(ctx, att)
+			if wsAtt != nil {
+				result = append(result, *wsAtt)
+			}
+			continue
+		}
+
 		uploader, fileID, isWrapper := attachment.Parse(att.File)
 		if !isWrapper {
 			log.Warn("convertAttachments: skipping non-wrapper file value=%q title=%q", att.File, att.Title)
@@ -477,6 +493,87 @@ func convertAttachments(ctx context.Context, attachments []robottypes.DeliveryAt
 	return result
 }
 
+// convertWorkspaceAttachment reads a file from workspace:// URI and returns a messenger attachment.
+// URI format: workspace://<wsID>/<path>
+func convertWorkspaceAttachment(ctx context.Context, att robottypes.DeliveryAttachment) *messengerTypes.Attachment {
+	uri := att.File
+	// Strip "workspace://" prefix
+	rest := strings.TrimPrefix(uri, "workspace://")
+	slashIdx := strings.Index(rest, "/")
+	if slashIdx < 0 {
+		log.Warn("convertWorkspaceAttachment: invalid URI %q — no path after wsID", uri)
+		return nil
+	}
+	wsID := rest[:slashIdx]
+	filePath := rest[slashIdx+1:]
+	if wsID == "" || filePath == "" {
+		log.Warn("convertWorkspaceAttachment: empty wsID or path in URI %q", uri)
+		return nil
+	}
+
+	wsm := workspace.M()
+	if wsm == nil {
+		log.Warn("convertWorkspaceAttachment: workspace manager not available for URI %q", uri)
+		return nil
+	}
+
+	wsFS, err := wsm.FS(ctx, wsID)
+	if err != nil {
+		log.Warn("convertWorkspaceAttachment: cannot get FS for workspace %q: %v", wsID, err)
+		return nil
+	}
+
+	content, err := wsFS.ReadFile(filePath)
+	if err != nil {
+		log.Warn("convertWorkspaceAttachment: failed to read %q from workspace %q: %v", filePath, wsID, err)
+		return nil
+	}
+
+	filename := filepath.Base(filePath)
+	if att.Title != "" {
+		filename = att.Title
+	}
+
+	contentType := mimeFromExtDelivery(filepath.Ext(filename))
+	log.Info("convertWorkspaceAttachment: added workspace attachment filename=%q contentType=%q size=%d uri=%q",
+		filename, contentType, len(content), uri)
+
+	return &messengerTypes.Attachment{
+		Filename:    filename,
+		ContentType: contentType,
+		Content:     content,
+	}
+}
+
+func mimeFromExtDelivery(ext string) string {
+	switch strings.ToLower(ext) {
+	case ".pdf":
+		return "application/pdf"
+	case ".html", ".htm":
+		return "text/html"
+	case ".png":
+		return "image/png"
+	case ".jpg", ".jpeg":
+		return "image/jpeg"
+	case ".gif":
+		return "image/gif"
+	case ".csv":
+		return "text/csv"
+	case ".json":
+		return "application/json"
+	case ".md":
+		return "text/markdown"
+	case ".txt":
+		return "text/plain"
+	case ".xlsx":
+		return "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet"
+	case ".pptx":
+		return "application/vnd.openxmlformats-officedocument.presentationml.presentation"
+	default:
+		return "application/octet-stream"
+	}
+}
+
 func attachmentManagerKeys() []string {
 	keys := make([]string, 0, len(attachment.Managers))
 	for k := range attachment.Managers {

agent/robot/events/integrations/dingtalk/message.go

@@ -91,12 +91,23 @@ func buildContentParts(cm *dtapi.ConvertedMessage) []interface{} {
 		if url == "" {
 			url = mi.URL
 		}
-		parts = append(parts, map[string]interface{}{
-			"type":      "file",
-			"file_url":  url,
-			"mime_type": mi.MimeType,
-			"file_name": mi.FileName,
-		})
+		if strings.HasPrefix(mi.MimeType, "image/") {
+			parts = append(parts, map[string]interface{}{
+				"type": "image_url",
+				"image_url": map[string]interface{}{
+					"url":    url,
+					"detail": "auto",
+				},
+			})
+		} else {
+			parts = append(parts, map[string]interface{}{
+				"type": "file",
+				"file": map[string]interface{}{
+					"url":      url,
+					"filename": mi.FileName,
+				},
+			})
+		}
 	}
 
 	return parts

agent/robot/events/integrations/discord/message.go

@@ -96,12 +96,23 @@ func buildContentParts(cm *dcapi.ConvertedMessage) []interface{} {
 		if url == "" {
 			continue
 		}
-		parts = append(parts, map[string]interface{}{
-			"type":      "file",
-			"file_url":  url,
-			"mime_type": mi.ContentType,
-			"file_name": mi.FileName,
-		})
+		if strings.HasPrefix(mi.ContentType, "image/") {
+			parts = append(parts, map[string]interface{}{
+				"type": "image_url",
+				"image_url": map[string]interface{}{
+					"url":    url,
+					"detail": "auto",
+				},
+			})
+		} else {
+			parts = append(parts, map[string]interface{}{
+				"type": "file",
+				"file": map[string]interface{}{
+					"url":      url,
+					"filename": mi.FileName,
+				},
+			})
+		}
 	}
 
 	return parts

agent/robot/events/integrations/feishu/message.go

@@ -85,12 +85,23 @@ func buildContentParts(cm *fsapi.ConvertedMessage) []interface{} {
 		if mi.Wrapper == "" {
 			continue
 		}
-		parts = append(parts, map[string]interface{}{
-			"type":      "file",
-			"file_url":  mi.Wrapper,
-			"mime_type": mi.MimeType,
-			"file_name": mi.FileName,
-		})
+		if strings.HasPrefix(mi.MimeType, "image/") {
+			parts = append(parts, map[string]interface{}{
+				"type": "image_url",
+				"image_url": map[string]interface{}{
+					"url":    mi.Wrapper,
+					"detail": "auto",
+				},
+			})
+		} else {
+			parts = append(parts, map[string]interface{}{
+				"type": "file",
+				"file": map[string]interface{}{
+					"url":      mi.Wrapper,
+					"filename": mi.FileName,
+				},
+			})
+		}
 	}
 
 	return parts

agent/robot/events/integrations/telegram/message.go

@@ -93,12 +93,23 @@ func buildContentParts(cm *tgapi.ConvertedMessage) []interface{} {
 		if mi.Wrapper == "" {
 			continue
 		}
-		parts = append(parts, map[string]interface{}{
-			"type":      "file",
-			"file_url":  mi.Wrapper,
-			"mime_type": mi.MimeType,
-			"file_name": mi.FileName,
-		})
+		if strings.HasPrefix(mi.MimeType, "image/") {
+			parts = append(parts, map[string]interface{}{
+				"type": "image_url",
+				"image_url": map[string]interface{}{
+					"url":    mi.Wrapper,
+					"detail": "auto",
+				},
+			})
+		} else {
+			parts = append(parts, map[string]interface{}{
+				"type": "file",
+				"file": map[string]interface{}{
+					"url":      mi.Wrapper,
+					"filename": mi.FileName,
+				},
+			})
+		}
 	}
 
 	return parts

agent/robot/events/integrations/weixin/polling.go

@@ -3,6 +3,7 @@ package weixin
 import (
 	"context"
 	"fmt"
+	"strings"
 	"time"
 
 	agentcontext "github.com/yaoapp/yao/agent/context"
@@ -113,12 +114,23 @@ func (a *Adapter) handleMessage(ctx context.Context, entry *botEntry, msg *weixi
 			parts = append(parts, map[string]interface{}{"type": "text", "text": content})
 		}
 		for _, m := range mediaItems {
-			parts = append(parts, map[string]interface{}{
-				"type":      "file",
-				"file_url":  m.Wrapper,
-				"mime_type": m.MimeType,
-				"file_name": m.FileName,
-			})
+			if strings.HasPrefix(m.MimeType, "image/") {
+				parts = append(parts, map[string]interface{}{
+					"type": "image_url",
+					"image_url": map[string]interface{}{
+						"url":    m.Wrapper,
+						"detail": "auto",
+					},
+				})
+			} else {
+				parts = append(parts, map[string]interface{}{
+					"type": "file",
+					"file": map[string]interface{}{
+						"url":      m.Wrapper,
+						"filename": m.FileName,
+					},
+				})
+			}
 		}
 		msgContent = parts
 	}

agent/robot/events/integrations/weixin/reply.go

@@ -5,12 +5,14 @@ import (
 	"fmt"
 	"io"
 	"net/http"
+	"path/filepath"
 	"strings"
 
 	agentcontext "github.com/yaoapp/yao/agent/context"
 	events "github.com/yaoapp/yao/agent/robot/events"
 	"github.com/yaoapp/yao/attachment"
 	weixinapi "github.com/yaoapp/yao/integrations/weixin"
+	"github.com/yaoapp/yao/workspace"
 )
 
 func (a *Adapter) Reply(ctx context.Context, msg *agentcontext.Message, metadata *events.MessageMetadata) error {
@@ -168,7 +170,37 @@ func (a *Adapter) sendMediaFromURL(ctx context.Context, entry *botEntry, toUserI
 	var plaintext []byte
 	var contentType string
 
-	if isWrapper(fileURL) {
+	if strings.HasPrefix(fileURL, "workspace://") {
+		rest := strings.TrimPrefix(fileURL, "workspace://")
+		slashIdx := strings.Index(rest, "/")
+		if slashIdx < 0 {
+			return fmt.Errorf("invalid workspace URL: %s", fileURL)
+		}
+		wsID := rest[:slashIdx]
+		filePath := rest[slashIdx+1:]
+
+		wsm := workspace.M()
+		if wsm == nil {
+			return fmt.Errorf("workspace manager not initialized")
+		}
+
+		wsFS, err := wsm.FS(ctx, wsID)
+		if err != nil {
+			return fmt.Errorf("open workspace %s: %w", wsID, err)
+		}
+		defer wsFS.Close()
+
+		plaintext, err = wsFS.ReadFile(filePath)
+		if err != nil {
+			return fmt.Errorf("read workspace file %s/%s: %w", wsID, filePath, err)
+		}
+		contentType = mimeFromExt(filepath.Ext(filePath))
+		if fileName == "" {
+			fileName = filepath.Base(filePath)
+		}
+		log.Info("weixin sendMedia: workspace read bytes=%d contentType=%q fileName=%q", len(plaintext), contentType, fileName)
+
+	} else if isWrapper(fileURL) {
 		managerName, fileID, err := parseWrapper(fileURL)
 		if err != nil {
 			return err
@@ -291,6 +323,37 @@ func toContentParts(content interface{}) ([]agentcontext.ContentPart, bool) {
 	return parts, ok
 }
 
+func mimeFromExt(ext string) string {
+	switch strings.ToLower(ext) {
+	case ".pdf":
+		return "application/pdf"
+	case ".html", ".htm":
+		return "text/html"
+	case ".png":
+		return "image/png"
+	case ".jpg", ".jpeg":
+		return "image/jpeg"
+	case ".gif":
+		return "image/gif"
+	case ".webp":
+		return "image/webp"
+	case ".md":
+		return "text/markdown"
+	case ".txt":
+		return "text/plain"
+	case ".csv":
+		return "text/csv"
+	case ".json":
+		return "application/json"
+	case ".xlsx":
+		return "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet"
+	case ".pptx":
+		return "application/vnd.openxmlformats-officedocument.presentationml.presentation"
+	default:
+		return "application/octet-stream"
+	}
+}
+
 func (a *Adapter) resolveByAccountID(accountID string) *botEntry {
 	if accountID == "" {
 		return nil

agent/robot/events/message.go

@@ -33,6 +33,15 @@ func (h *robotHandler) handleMessage(ctx context.Context, ev *eventtypes.Event,
 	result, err := callHostAgent(ctx, &payload)
 	if err != nil {
 		log.Error("message handler: host agent call failed robot=%s: %v", payload.RobotID, err)
+
+		if reply := getReplyFunc(); reply != nil {
+			errMsg := friendlyErrorMessage(payload.Metadata.Locale)
+			_ = reply(ctx, &agentcontext.Message{
+				Role:    agentcontext.RoleAssistant,
+				Content: errMsg,
+			}, payload.Metadata)
+		}
+
 		if ev.IsCall {
 			resp <- eventtypes.Result{Err: err}
 		}
@@ -73,6 +82,7 @@ func callHostAgent(ctx context.Context, payload *MessagePayload) (*MessageResult
 
 	authorized := &oauthtypes.AuthorizedInfo{
 		UserID: payload.Metadata.SenderID,
+		TeamID: record.TeamID,
 	}
 	chatID := fmt.Sprintf("%s:%s", payload.Metadata.Channel, payload.Metadata.ChatID)
 	agentCtx := agentcontext.New(ctx, authorized, chatID)
@@ -232,6 +242,13 @@ func resolveHostAssistantID(ctx context.Context, memberID string) (string, *robo
 	return hostID, record, nil
 }
 
+func friendlyErrorMessage(locale string) string {
+	if strings.HasPrefix(locale, "zh") {
+		return "抱歉，处理您的消息时出现了问题，请稍后重试。"
+	}
+	return "Sorry, there was a problem processing your message. Please try again later."
+}
+
 func taskDeployedMessage(execID string, locale string) string {
 	if strings.HasPrefix(locale, "zh") {
 		return fmt.Sprintf("任务已部署（执行编号: %s），完成后会将结果发送给你。", execID)

agent/robot/executor/standard/agent.go

@@ -53,6 +53,11 @@ type AgentCaller struct {
 	// When non-empty, injected into agentCtx.Metadata["workspace_id"] for sandbox node resolution.
 	Workspace string
 
+	// Mode is the agent execution mode (e.g., "task" for robot P3 execution).
+	// When non-empty, injected into agentCtx.Metadata["mode"] (exposed as $CTX.MODE
+	// in prompt templates) and into opts.Mode for framework-level buffer/chat recording.
+	Mode string
+
 	// log is an optional structured logger; when set, Call emits agent-call logs.
 	log *execLogger
 }
@@ -194,6 +199,7 @@ func (c *AgentCaller) Call(ctx *robottypes.Context, assistantID string, messages
 			Search:  c.SkipSearch,
 		},
 		Connector: c.Connector,
+		Mode:      c.Mode,
 	}
 
 	agentCtx := c.buildAgentContext(ctx, assistantID)
@@ -228,7 +234,7 @@ func (c *AgentCaller) Call(ctx *robottypes.Context, assistantID string, messages
 	}
 
 	if c.log != nil {
-		c.log.logAgentCall(assistantID, result)
+		c.log.logAgentCall(assistantID, c.Connector, result)
 	}
 
 	return result, nil
@@ -276,6 +282,7 @@ func (c *AgentCaller) CallStream(ctx *robottypes.Context, assistantID string, me
 			Search:  c.SkipSearch,
 		},
 		Connector: c.Connector,
+		Mode:      c.Mode,
 	}
 
 	// Hook OnMessage to intercept streaming chunks and forward to callback
@@ -332,7 +339,7 @@ func (c *AgentCaller) CallStream(ctx *robottypes.Context, assistantID string, me
 	}
 
 	if c.log != nil {
-		c.log.logAgentCall(assistantID, result)
+		c.log.logAgentCall(assistantID, c.Connector, result)
 	}
 
 	return result, nil
@@ -366,6 +373,7 @@ func (c *AgentCaller) CallStreamRaw(ctx *robottypes.Context, assistantID string,
 			Search:  c.SkipSearch,
 		},
 		Connector: c.Connector,
+		Mode:      c.Mode,
 	}
 
 	if onMessage != nil {
@@ -400,7 +408,7 @@ func (c *AgentCaller) CallStreamRaw(ctx *robottypes.Context, assistantID string,
 	}
 
 	if c.log != nil {
-		c.log.logAgentCall(assistantID, result)
+		c.log.logAgentCall(assistantID, c.Connector, result)
 	}
 
 	return result, nil
@@ -448,11 +456,16 @@ func (c *AgentCaller) buildAgentContext(ctx *robottypes.Context, assistantID str
 	}
 	agentCtx.Logger = agentcontext.Noop()
 
-	if c.Workspace != "" {
+	if c.Workspace != "" || c.Mode != "" {
 		if agentCtx.Metadata == nil {
 			agentCtx.Metadata = map[string]interface{}{}
 		}
-		agentCtx.Metadata["workspace_id"] = c.Workspace
+		if c.Workspace != "" {
+			agentCtx.Metadata["workspace_id"] = c.Workspace
+		}
+		if c.Mode != "" {
+			agentCtx.Metadata["MODE"] = c.Mode
+		}
 	}
 
 	kunlog.Trace("[robot-agent] context built: assistantID=%s chatID=%s contextID=%s", assistantID, c.ChatID, agentCtx.ID)

agent/robot/executor/standard/delivery.go

@@ -3,14 +3,17 @@ package standard
 import (
 	"encoding/json"
 	"fmt"
+	"path"
 	"strings"
 	"time"
 
 	"github.com/yaoapp/gou/model"
+	"github.com/yaoapp/gou/process"
 	kunlog "github.com/yaoapp/kun/log"
 	robotevents "github.com/yaoapp/yao/agent/robot/events"
 	robottypes "github.com/yaoapp/yao/agent/robot/types"
 	"github.com/yaoapp/yao/event"
+	"github.com/yaoapp/yao/workspace"
 )
 
 // RunDelivery executes P4: Delivery phase
@@ -35,14 +38,36 @@ func (e *Executor) RunDelivery(ctx *robottypes.Context, exec *robottypes.Executi
 	}
 
 	formatter := NewInputFormatter()
-	userContent := formatter.FormatDeliveryInput(exec, robot)
+
+	// Try workspace-based delivery input (manifest summaries instead of raw output inline)
+	var userContent string
+	if robot.Workspace != "" {
+		wsm := workspace.M()
+		if wsm != nil {
+			wsFS, err := wsm.FS(ctx, robot.Workspace)
+			if err == nil {
+				execDir := path.Join("robots", robot.MemberID, exec.ID)
+				data, err := wsFS.ReadFile(path.Join(execDir, "manifest.json"))
+				if err == nil {
+					var manifest Manifest
+					if json.Unmarshal(data, &manifest) == nil {
+						userContent = formatter.FormatDeliveryInputWithManifest(exec, robot, &manifest, robot.Workspace, execDir, locale)
+					}
+				}
+			}
+		}
+	}
+
+	// Fallback to legacy full-output inline
+	if userContent == "" {
+		userContent = formatter.FormatDeliveryInput(exec, robot)
+	}
 
 	if userContent == "" {
 		return fmt.Errorf("no content available for delivery generation")
 	}
 
 	caller := NewAgentCaller()
-	caller.Connector = robot.LanguageModel
 	caller.Workspace = robot.Workspace
 	result, err := caller.CallWithMessages(ctx, agentID, userContent)
 	if err != nil {
@@ -98,7 +123,16 @@ func (e *Executor) pushDeliveryEvent(ctx *robottypes.Context, exec *robottypes.E
 		}
 	}
 
-	_, err := event.Push(ctx.Context, robotevents.Delivery, robotevents.DeliveryPayload{
+	eventCtx := ctx.Context
+	if ctx.Auth != nil {
+		eventCtx = event.WithAuth(eventCtx, &process.AuthorizedInfo{
+			UserID:  ctx.Auth.UserID,
+			TeamID:  ctx.Auth.TeamID,
+			Subject: ctx.Auth.Subject,
+		})
+	}
+
+	_, err := event.Push(eventCtx, robotevents.Delivery, robotevents.DeliveryPayload{
 		ExecutionID: exec.ID,
 		MemberID:    exec.MemberID,
 		TeamID:      exec.TeamID,
@@ -403,3 +437,103 @@ func (f *InputFormatter) FormatDeliveryInput(exec *robottypes.Execution, robot *
 
 	return sb.String()
 }
+
+// FormatDeliveryInputWithManifest formats delivery input using workspace manifest summaries
+// instead of inlining full task outputs. This drastically reduces token usage.
+func (f *InputFormatter) FormatDeliveryInputWithManifest(
+	exec *robottypes.Execution,
+	robot *robottypes.Robot,
+	manifest *Manifest,
+	wsID string,
+	execDir string,
+	locale string,
+) string {
+	if exec == nil || manifest == nil {
+		return ""
+	}
+
+	var sb strings.Builder
+
+	// Robot Identity (same as legacy)
+	if robot != nil && robot.Config != nil && robot.Config.Identity != nil {
+		sb.WriteString("## Robot Identity\n\n")
+		sb.WriteString(fmt.Sprintf("- **Role**: %s\n", robot.Config.Identity.Role))
+		if len(robot.Config.Identity.Duties) > 0 {
+			sb.WriteString("- **Duties**: ")
+			sb.WriteString(strings.Join(robot.Config.Identity.Duties, ", "))
+			sb.WriteString("\n")
+		}
+		sb.WriteString("\n")
+	}
+
+	sb.WriteString("## Execution Context\n\n")
+	sb.WriteString(fmt.Sprintf("- **Trigger**: %s\n", exec.TriggerType))
+	sb.WriteString(fmt.Sprintf("- **Status**: %s\n", exec.Status))
+	if locale != "" {
+		sb.WriteString(fmt.Sprintf("- **Language**: %s\n", locale))
+	}
+	sb.WriteString(fmt.Sprintf("- **Start Time**: %s\n", exec.StartTime.Format("2006-01-02 15:04:05")))
+	if exec.EndTime != nil {
+		duration := exec.EndTime.Sub(exec.StartTime)
+		sb.WriteString(fmt.Sprintf("- **Duration**: %s\n", duration.String()))
+	}
+	sb.WriteString("\n")
+
+	sb.WriteString("## Goals\n\n")
+	sb.WriteString(manifest.Goals)
+	sb.WriteString("\n\n")
+
+	// Results from manifest summaries
+	sb.WriteString("## Results (P3)\n\n")
+	successCount := 0
+	failCount := 0
+
+	for _, t := range manifest.Tasks {
+		if t.Status == "completed" {
+			successCount++
+			sb.WriteString(fmt.Sprintf("### ✓ Task: %s\n\n", t.ID))
+		} else if t.Status == "failed" {
+			failCount++
+			sb.WriteString(fmt.Sprintf("### ✗ Task: %s\n\n", t.ID))
+		} else {
+			continue
+		}
+
+		sb.WriteString(fmt.Sprintf("- **Description**: %s\n", t.Description))
+		sb.WriteString(fmt.Sprintf("- **Executor**: %s (%s)\n", t.Executor, t.ExecutorType))
+
+		if t.Summary != "" {
+			sb.WriteString(fmt.Sprintf("- **Summary**: %s\n", t.Summary))
+		}
+		if len(t.KeyOutputs) > 0 {
+			sb.WriteString(fmt.Sprintf("- **Key Outputs**: %s\n", strings.Join(t.KeyOutputs, ", ")))
+		}
+
+		// File references — use existing URI if present, otherwise build from execDir
+		if len(t.Files) > 0 {
+			sb.WriteString("- **Artifacts**:\n")
+			for _, file := range t.Files {
+				uri := file.URI
+				if uri == "" {
+					uri = fmt.Sprintf("workspace://%s/%s/%s/%s", wsID, execDir, t.ID, file.Name)
+				}
+				sb.WriteString(fmt.Sprintf("  - [%s](%s)", file.Name, uri))
+				if file.Desc != "" {
+					sb.WriteString(fmt.Sprintf(" — %s", file.Desc))
+				}
+				sb.WriteString("\n")
+			}
+		}
+
+		// Full output file reference
+		outputURI := fmt.Sprintf("workspace://%s/%s/%s.output.md", wsID, execDir, t.ID)
+		sb.WriteString(fmt.Sprintf("- **Full Output**: [%s.output.md](%s)\n", t.ID, outputURI))
+
+		sb.WriteString("\n")
+	}
+
+	sb.WriteString(fmt.Sprintf("### Summary\n\n- **Total Tasks**: %d\n- **Succeeded**: %d\n- **Failed**: %d\n\n",
+		successCount+failCount, successCount, failCount))
+
+	return sb.String()
+}

agent/robot/executor/standard/goals.go

@@ -84,7 +84,6 @@ func (e *Executor) RunGoals(ctx *robottypes.Context, exec *robottypes.Execution,
 
 	// Call agent
 	caller := NewAgentCaller()
-	caller.Connector = robot.LanguageModel
 	caller.Workspace = robot.Workspace
 	result, err := caller.CallWithMessages(ctx, agentID, userContent)
 	if err != nil {

agent/robot/executor/standard/host.go

@@ -32,7 +32,6 @@ func (e *Executor) CallHostAgent(ctx *robottypes.Context, robot *robottypes.Robo
 	kunlog.Info("calling Host Agent %s for scenario=%s chatID=%s", agentID, input.Scenario, chatID)
 
 	caller := NewConversationCaller(chatID)
-	caller.Connector = robot.LanguageModel
 	caller.Workspace = robot.Workspace
 	result, err := caller.CallWithMessages(ctx, agentID, string(inputJSON))
 	if err != nil {

agent/robot/executor/standard/input.go

@@ -183,6 +183,7 @@ func (f *InputFormatter) FormatAvailableResourcesWithLocale(robot *robottypes.Ro
 				capabilities := i18n.Translate(agentID, locale, ast.Capabilities).(string)
 				sb.WriteString(fmt.Sprintf("  - **Capabilities**: %s\n", capabilities))
 			}
+
 		}
 		sb.WriteString("\n")
 	}

agent/robot/executor/standard/inspiration.go

@@ -53,7 +53,6 @@ func (e *Executor) RunInspiration(ctx *robottypes.Context, exec *robottypes.Exec
 
 	// Call agent
 	caller := NewAgentCaller()
-	caller.Connector = robot.LanguageModel
 	caller.Workspace = robot.Workspace
 	result, err := caller.CallWithMessages(ctx, agentID, userContent)
 	if err != nil {

agent/robot/executor/standard/log.go

@@ -103,9 +103,9 @@ func (l *execLogger) devTaskOverview(tasks []robottypes.Task) {
 // P3: Task Input
 // ---------------------------------------------------------------------------
 
-func (l *execLogger) logTaskInput(task *robottypes.Task, prompt string) {
+func (l *execLogger) logTaskInput(task *robottypes.Task, prompt string, actualConnector string) {
 	if config.IsDevelopment() {
-		l.devTaskInput(task, prompt)
+		l.devTaskInput(task, prompt, actualConnector)
 	}
 	kunlog.With(kunlog.F{
 		"robot_id":       l.robotID(),
@@ -115,17 +115,23 @@ func (l *execLogger) logTaskInput(task *robottypes.Task, prompt string) {
 		"executor_id":    task.ExecutorID,
 		"prompt_len":     len(prompt),
 		"language_model": l.connector(),
+		"connector":      actualConnector,
 	}).Info("Task input: %s [%s]", task.ID, task.ExecutorID)
 }
 
-func (l *execLogger) devTaskInput(task *robottypes.Task, prompt string) {
+func (l *execLogger) devTaskInput(task *robottypes.Task, prompt string, actualConnector string) {
 	w := logger.Gray
 	v := logger.White
 	r := logger.Reset
 
+	connLabel := actualConnector
+	if connLabel == "" {
+		connLabel = "agent-default"
+	}
+
 	var sb strings.Builder
-	sb.WriteString(fmt.Sprintf("%s  ▶ Task %s%s%s [%s:%s]  Prompt: %d chars%s\n",
-		w, v, task.ID, w, task.ExecutorType, task.ExecutorID, len(prompt), r))
+	sb.WriteString(fmt.Sprintf("%s  ▶ Task %s%s%s [%s:%s]  Connector: %s%s%s  Prompt: %d chars%s\n",
+		w, v, task.ID, w, task.ExecutorType, task.ExecutorID, v, connLabel, w, len(prompt), r))
 
 	logger.Raw(sb.String())
 }
@@ -190,18 +196,19 @@ func (l *execLogger) devTaskOutput(task *robottypes.Task, result *robottypes.Tas
 // Agent Call
 // ---------------------------------------------------------------------------
 
-func (l *execLogger) logAgentCall(agentID string, result *CallResult) {
+func (l *execLogger) logAgentCall(agentID string, connector string, result *CallResult) {
 	if result == nil {
 		return
 	}
 	if config.IsDevelopment() {
-		l.devAgentCall(agentID, result)
+		l.devAgentCall(agentID, connector, result)
 	}
 
 	fields := kunlog.F{
 		"robot_id":       l.robotID(),
 		"execution_id":   l.execID,
 		"agent_id":       agentID,
+		"connector":      connector,
 		"content_len":    len(result.Content),
 		"language_model": l.connector(),
 	}
@@ -209,23 +216,28 @@ func (l *execLogger) logAgentCall(agentID string, result *CallResult) {
 		fields["next_type"] = fmt.Sprintf("%T", result.Next)
 		fields["next_len"] = outputLen(result.Next)
 	}
-	kunlog.With(fields).Info("Agent call: %s (content=%d, next=%T)", agentID, len(result.Content), result.Next)
+	kunlog.With(fields).Info("Agent call: %s (connector=%s, content=%d, next=%T)", agentID, connector, len(result.Content), result.Next)
 }
 
-func (l *execLogger) devAgentCall(agentID string, result *CallResult) {
+func (l *execLogger) devAgentCall(agentID string, connector string, result *CallResult) {
 	w := logger.Gray
 	v := logger.White
 	c := logger.Cyan
 	r := logger.Reset
 
+	displayConn := connector
+	if displayConn == "" {
+		displayConn = "agent-default"
+	}
+
 	nextInfo := "—"
 	if result.Next != nil {
 		nextInfo = fmt.Sprintf("%T (len=%d)", result.Next, outputLen(result.Next))
 	}
 
 	var sb strings.Builder
-	sb.WriteString(fmt.Sprintf("%s  → Agent(%s%s%s) Content: %s%d%s chars  Next: %s%s%s\n",
-		c, v, agentID, c, v, len(result.Content), w, v, nextInfo, r))
+	sb.WriteString(fmt.Sprintf("%s  → Agent(%s%s%s)  Connector: %s%s%s  Content: %s%d%s chars  Next: %s%s%s\n",
+		c, v, agentID, c, v, displayConn, c, v, len(result.Content), w, v, nextInfo, r))
 
 	logger.Raw(sb.String())
 }

agent/robot/executor/standard/prompts/workspace.yml

@@ -0,0 +1,60 @@
+workspace: |
+  ## Workspace
+
+  Execution directory: {{.ExecDir}}
+
+  ### Available Files
+  {{range .Files}}
+  - {{.Path}} — {{.Desc}}
+  {{- end}}
+
+  ### Your Task Directory
+
+  Write any output files to: {{.TaskDir}}
+
+context: |
+  ## Execution Context
+
+  Goals: {{.Goals}}
+  {{- if .Locale}}
+  Language: {{.Locale}}
+  {{- end}}
+  Mode: automated-pipeline
+  {{- if .FailureWarning}}
+
+  ⚠ {{.FailureWarning}}
+  {{- end}}
+  {{if .CompletedTasks}}
+  ### Completed Tasks
+  {{range .CompletedTasks}}
+  {{.Seq}}. [{{.ID}}] {{.Description}} ({{.ExecutorType}}: {{.Executor}}) ✓
+     Summary: {{.Summary}}
+  {{- if .KeyOutputs}}
+     Key outputs: {{.KeyOutputs}}
+  {{- end}}
+  {{- if .HasFiles}}
+     Files: {{.Files}}
+  {{- end}}
+  {{end}}
+  {{- end}}
+  {{- if .FailedTasks}}
+  ### Failed Tasks
+  {{range .FailedTasks}}
+  {{.Seq}}. [{{.ID}}] {{.Description}} ✗
+     Error: {{.Error}}
+  {{end}}
+  {{- end}}
+  ### Current Task
+
+  {{.CurrentOrder}}. [{{.CurrentID}}] {{.CurrentDesc}} ({{.CurrentType}}: {{.CurrentExec}})
+
+instructions: |
+  ## Task Instructions
+
+  {{.TaskInstructions}}
+  {{- if .ExpectedOutput}}
+
+  ### Expected Output
+
+  {{.ExpectedOutput}}
+  {{- end}}

agent/robot/executor/standard/run.go

@@ -2,8 +2,10 @@ package standard
 
 import (
 	"fmt"
+	"path"
 	"time"
 
+	kunlog "github.com/yaoapp/kun/log"
 	robotevents "github.com/yaoapp/yao/agent/robot/events"
 	robottypes "github.com/yaoapp/yao/agent/robot/types"
 	"github.com/yaoapp/yao/event"
@@ -53,9 +55,6 @@ func (e *Executor) RunExecution(ctx *robottypes.Context, exec *robottypes.Execut
 		config = DefaultRunConfig()
 	}
 
-	// Determine locale for UI messages
-	locale := getEffectiveLocale(robot, exec.Input)
-
 	// Determine start index and restore results from resume context
 	startIndex := 0
 	if exec.ResumeContext != nil {
@@ -67,6 +66,26 @@ func (e *Executor) RunExecution(ctx *robottypes.Context, exec *robottypes.Execut
 
 	// Create task runner with execution-level chatID (§8.4)
 	runner := NewRunner(ctx, robot, config, exec.ChatID, exec.ID)
+	if ctx.Locale != "" {
+		runner.locale = ctx.Locale
+	} else {
+		runner.locale = getEffectiveLocale(robot, exec.Input)
+	}
+
+	// Initialize workspace for file-based context
+	wsFS, err := ensureRobotWorkspace(ctx, robot)
+	if err != nil {
+		kunlog.Warn("[robot-run] workspace unavailable, falling back to in-memory context: %v", err)
+	} else {
+		execDir := path.Join("robots", robot.MemberID, exec.ID)
+		if mkErr := wsFS.MkdirAll(execDir, 0755); mkErr != nil {
+			kunlog.Warn("[robot-run] mkdir %s: %v", execDir, mkErr)
+		} else {
+			runner.wsFS = wsFS
+			runner.execDir = execDir
+			runner.initManifest(exec)
+		}
+	}
 
 	// Execute tasks sequentially from startIndex
 	for i := startIndex; i < len(exec.Tasks); i++ {
@@ -80,7 +99,7 @@ func (e *Executor) RunExecution(ctx *robottypes.Context, exec *robottypes.Execut
 		}
 
 		// Update UI field with current task description (i18n)
-		taskName := formatTaskProgressName(task, i, len(exec.Tasks), locale)
+		taskName := formatTaskProgressName(task, i, len(exec.Tasks), runner.locale)
 		e.updateUIFields(ctx, exec, "", taskName)
 
 		// Mark task as running
@@ -127,7 +146,10 @@ func (e *Executor) RunExecution(ctx *robottypes.Context, exec *robottypes.Execut
 			})
 		}
 
-		// Store result
+		// Write task files to workspace (non-blocking, errors logged)
+		runner.writeTaskOutput(task, result, runner.lastPromptSnapshot)
+
+		// Store result (in-memory, for persistence + resume)
 		exec.Results = append(exec.Results, *result)
 
 		// Persist completed/failed state to database

agent/robot/executor/standard/runner.go

@@ -10,16 +10,24 @@ import (
 	"github.com/yaoapp/gou/process"
 	kunlog "github.com/yaoapp/kun/log"
 	agentcontext "github.com/yaoapp/yao/agent/context"
+	"github.com/yaoapp/yao/agent/llm"
 	robottypes "github.com/yaoapp/yao/agent/robot/types"
+	taiworkspace "github.com/yaoapp/yao/tai/workspace"
 )
 
 // Runner handles execution of individual tasks
 type Runner struct {
-	ctx    *robottypes.Context
-	robot  *robottypes.Robot
-	config *RunConfig
-	chatID string // execution-level chatID for conversation persistence (§8.4)
-	log    *execLogger
+	ctx                *robottypes.Context
+	robot              *robottypes.Robot
+	config             *RunConfig
+	chatID             string // execution-level chatID for conversation persistence (§8.4)
+	log                *execLogger
+	wsFS               taiworkspace.FS // workspace file system (nil if unavailable)
+	execDir            string          // workspace-relative execution directory (e.g. "robots/<id>/<exec_id>")
+	lastPromptSnapshot string          // captured prompt text for workspace .input.md
+	currentTaskIndex   int             // current task index for workspace prompt building
+	currentExec        *robottypes.Execution
+	locale             string // effective locale for this execution (e.g. "zh", "en")
 }
 
 // NewRunner creates a new task runner
@@ -47,12 +55,15 @@ type RunnerContext struct {
 
 // BuildTaskContext builds context for a task including previous results
 func (r *Runner) BuildTaskContext(exec *robottypes.Execution, taskIndex int) *RunnerContext {
+	r.currentTaskIndex = taskIndex
+	r.currentExec = exec
+
 	ctx := &RunnerContext{
 		Goals:        exec.Goals,
 		SystemPrompt: r.robot.SystemPrompt,
 	}
 
-	// Include results from previous tasks (with bounds check)
+	// Include results from previous tasks (with bounds check) — kept for fallback
 	if taskIndex > 0 && len(exec.Results) > 0 {
 		endIndex := taskIndex
 		if endIndex > len(exec.Results) {
@@ -132,26 +143,56 @@ func (r *Runner) executeNonAssistantTask(task *robottypes.Task, taskCtx *RunnerC
 // Returns the extracted output, the raw CallResult (for need_input detection), and any error.
 func (r *Runner) executeAssistantTask(task *robottypes.Task, taskCtx *RunnerContext) (interface{}, *CallResult, error) {
 	caller := NewAgentCaller()
+	caller.Mode = "task"
 	caller.log = r.log
-	caller.Connector = r.robot.LanguageModel
+	if r.robot.LanguageModel != "" {
+		if _, _, err := llm.ResolveConnector(r.robot.LanguageModel, nil); err == nil {
+			caller.Connector = r.robot.LanguageModel
+		} else {
+			kunlog.Warn("[robot-runner] connector %s invalid, using agent default: %v",
+				r.robot.LanguageModel, err)
+		}
+	}
 	caller.Workspace = r.robot.Workspace
 	caller.ChatID = r.chatID
 
-	messages := r.BuildAssistantMessages(task, taskCtx)
-	input := r.FormatMessagesAsText(messages)
+	var input string
+	workspacePromptUsed := false
+
+	// Use workspace-based prompt when available
+	if r.wsFS != nil {
+		manifest, err := r.readManifest()
+		if err == nil {
+			taskInstructions := r.FormatMessagesAsText(task.Messages)
+			input = r.buildWorkspacePrompt(manifest, r.currentTaskIndex, task, taskInstructions)
+			workspacePromptUsed = (input != "")
+		}
+	}
+
+	// Fallback to legacy in-memory context
+	if input == "" {
+		messages := r.BuildAssistantMessages(task, taskCtx)
+		input = r.FormatMessagesAsText(messages)
+	}
 
 	if strings.TrimSpace(input) == "" {
 		return nil, nil, fmt.Errorf("no valid input messages for task %s", task.ID)
 	}
 
-	if taskCtx.SystemPrompt != "" {
+	// Only inject robot system prompt for legacy (non-workspace) path.
+	// In workspace mode the agent's own prompts.yml defines its role;
+	// injecting the robot's dispatcher prompt would confuse the executor.
+	if taskCtx.SystemPrompt != "" && !workspacePromptUsed {
 		input = "## Context\n\n" + taskCtx.SystemPrompt + "\n\n## Task\n\n" + input
 	}
 
+	// Capture prompt snapshot for workspace .input.md
+	r.lastPromptSnapshot = input
+
 	kunlog.Trace("[robot-runner] executeAssistantTask: task=%s assistant=%s promptLen=%d prevResults=%d",
 		task.ID, task.ExecutorID, len(input), len(taskCtx.PreviousResults))
 
-	r.log.logTaskInput(task, input)
+	r.log.logTaskInput(task, input, caller.Connector)
 
 	result, err := caller.CallWithMessages(r.ctx, task.ExecutorID, input)
 	if err != nil {

agent/robot/executor/standard/tasks.go

@@ -2,7 +2,9 @@ package standard
 
 import (
 	"fmt"
+	"strings"
 
+	kunlog "github.com/yaoapp/kun/log"
 	agentcontext "github.com/yaoapp/yao/agent/context"
 	robottypes "github.com/yaoapp/yao/agent/robot/types"
 )
@@ -54,7 +56,6 @@ func (e *Executor) RunTasks(ctx *robottypes.Context, exec *robottypes.Execution,
 	// Call agent
 	caller := NewAgentCaller()
 	caller.log = newExecLogger(robot, exec.ID)
-	caller.Connector = robot.LanguageModel
 	caller.Workspace = robot.Workspace
 	result, err := caller.CallWithMessages(ctx, agentID, userContent)
 	if err != nil {
@@ -80,6 +81,9 @@ func (e *Executor) RunTasks(ctx *robottypes.Context, exec *robottypes.Execution,
 		return fmt.Errorf("tasks agent (%s) returned invalid task structure: %w", agentID, err)
 	}
 
+	// Normalize executor IDs and types against available resources
+	NormalizeTaskExecutors(tasks, robot)
+
 	// Validate tasks
 	if err := ValidateTasks(tasks); err != nil {
 		return fmt.Errorf("tasks validation failed: %w", err)
@@ -395,3 +399,81 @@ func ValidateMCPTask(task *robottypes.Task) error {
 	}
 	return nil
 }
+
+// NormalizeTaskExecutors fixes LLM-generated executor_id and executor_type
+// against the robot's actual resource lists. It handles two common LLM errors:
+//  1. Partial executor_id (e.g. "report-writer" instead of "yao.report-writer")
+//  2. Wrong executor_type (e.g. classifying an assistant as "mcp")
+func NormalizeTaskExecutors(tasks []robottypes.Task, robot *robottypes.Robot) {
+	if robot == nil || robot.Config == nil || robot.Config.Resources == nil {
+		return
+	}
+
+	agentSet := make(map[string]bool, len(robot.Config.Resources.Agents))
+	for _, id := range robot.Config.Resources.Agents {
+		agentSet[id] = true
+	}
+
+	mcpSet := make(map[string]bool, len(robot.Config.Resources.MCP))
+	for _, m := range robot.Config.Resources.MCP {
+		mcpSet[m.ID] = true
+	}
+
+	for i := range tasks {
+		task := &tasks[i]
+		origID := task.ExecutorID
+		origType := task.ExecutorType
+
+		// Skip process tasks — they are not in resource lists
+		if task.ExecutorType == robottypes.ExecutorProcess {
+			continue
+		}
+
+		// Step 1: Try exact match first
+		if agentSet[task.ExecutorID] {
+			task.ExecutorType = robottypes.ExecutorAssistant
+			if origType != task.ExecutorType {
+				kunlog.Trace("[normalize] task %s: executor_type %s -> %s (crosscheck)", task.ID, origType, task.ExecutorType)
+			}
+			continue
+		}
+		if mcpSet[task.ExecutorID] {
+			task.ExecutorType = robottypes.ExecutorMCP
+			if origType != task.ExecutorType {
+				kunlog.Trace("[normalize] task %s: executor_type %s -> %s (crosscheck)", task.ID, origType, task.ExecutorType)
+			}
+			continue
+		}
+
+		// Step 2: Suffix match — LLM may omit namespace prefix
+		if match := suffixMatch(task.ExecutorID, robot.Config.Resources.Agents); match != "" {
+			task.ExecutorID = match
+			task.ExecutorType = robottypes.ExecutorAssistant
+			kunlog.Trace("[normalize] task %s: executor_id %s -> %s (suffix match)", task.ID, origID, match)
+			continue
+		}
+
+		mcpIDs := make([]string, 0, len(robot.Config.Resources.MCP))
+		for _, m := range robot.Config.Resources.MCP {
+			mcpIDs = append(mcpIDs, m.ID)
+		}
+		if match := suffixMatch(task.ExecutorID, mcpIDs); match != "" {
+			task.ExecutorID = match
+			task.ExecutorType = robottypes.ExecutorMCP
+			kunlog.Trace("[normalize] task %s: executor_id %s -> %s (suffix match)", task.ID, origID, match)
+			continue
+		}
+	}
+}
+
+// suffixMatch finds the first entry in candidates that ends with "."+partial
+// (or equals partial exactly, which is already handled by the caller).
+func suffixMatch(partial string, candidates []string) string {
+	suffix := "." + partial
+	for _, c := range candidates {
+		if strings.HasSuffix(c, suffix) {
+			return c
+		}
+	}
+	return ""
+}

agent/robot/executor/standard/validator.go

@@ -433,7 +433,6 @@ func (v *Validator) validateSemantic(task *robottypes.Task, output interface{})
 
 	// Call validation agent
 	caller := NewAgentCaller()
-	caller.Connector = v.robot.LanguageModel
 	caller.Workspace = v.robot.Workspace
 	result, err := caller.CallWithMessages(v.ctx, validationAgentID, validationPrompt)
 	if err != nil {
@@ -641,7 +640,6 @@ func (av *robotAgentValidator) Validate(agentID string, output, input, criteria
 
 	// Call agent
 	caller := NewAgentCaller()
-	caller.Connector = av.v.robot.LanguageModel
 	caller.Workspace = av.v.robot.Workspace
 	callResult, err := caller.CallWithMessages(av.v.ctx, agentID, string(inputJSON))
 	if err != nil {

agent/robot/executor/standard/workspace.go

@@ -0,0 +1,850 @@
+package standard
+
+import (
+	"bytes"
+	_ "embed"
+	"encoding/json"
+	"fmt"
+	"path"
+	"path/filepath"
+	"regexp"
+	"strings"
+	"text/template"
+
+	kunlog "github.com/yaoapp/kun/log"
+	agentcontext "github.com/yaoapp/yao/agent/context"
+	"github.com/yaoapp/yao/agent/llm"
+	robottypes "github.com/yaoapp/yao/agent/robot/types"
+	taiworkspace "github.com/yaoapp/yao/tai/workspace"
+	"github.com/yaoapp/yao/workspace"
+	"gopkg.in/yaml.v3"
+)
+
+//go:embed prompts/workspace.yml
+var workspacePromptYAML []byte
+
+type workspacePrompts struct {
+	Workspace    string `yaml:"workspace"`
+	Context      string `yaml:"context"`
+	Instructions string `yaml:"instructions"`
+}
+
+var wsPromptTpls struct {
+	Workspace    *template.Template
+	Context      *template.Template
+	Instructions *template.Template
+}
+
+func init() {
+	var p workspacePrompts
+	if err := yaml.Unmarshal(workspacePromptYAML, &p); err != nil {
+		return
+	}
+	wsPromptTpls.Workspace, _ = template.New("ws").Parse(p.Workspace)
+	wsPromptTpls.Context, _ = template.New("ctx").Parse(p.Context)
+	wsPromptTpls.Instructions, _ = template.New("inst").Parse(p.Instructions)
+}
+
+// Manifest is the shared context hub for an execution, written as manifest.json.
+type Manifest struct {
+	ExecID  string         `json:"exec_id"`
+	RobotID string         `json:"robot_id"`
+	Goals   string         `json:"goals"`
+	Tasks   []ManifestTask `json:"tasks"`
+}
+
+// ManifestTask represents a single task entry in the manifest.
+type ManifestTask struct {
+	ID           string         `json:"id"`
+	Order        int            `json:"order"`
+	Description  string         `json:"description"`
+	Executor     string         `json:"executor"`
+	ExecutorType string         `json:"executor_type"`
+	Status       string         `json:"status"`
+	Summary      string         `json:"summary,omitempty"`
+	KeyOutputs   []string       `json:"key_outputs,omitempty"`
+	Files        []ManifestFile `json:"files,omitempty"`
+	Error        string         `json:"error,omitempty"`
+}
+
+// ManifestFile represents a produced artifact.
+type ManifestFile struct {
+	Name string `json:"name"`
+	Type string `json:"type,omitempty"`
+	Desc string `json:"desc,omitempty"`
+	URI  string `json:"uri,omitempty"`
+}
+
+// ensureRobotWorkspace guarantees a workspace FS exists for the robot.
+// If robot.Workspace is empty, it derives a deterministic ID and auto-creates.
+// It also writes back robot.Workspace so subsequent callers get the correct ID.
+func ensureRobotWorkspace(ctx *robottypes.Context, robot *robottypes.Robot) (taiworkspace.FS, error) {
+	wsm := workspace.M()
+	if wsm == nil {
+		return nil, fmt.Errorf("workspace manager not available")
+	}
+
+	wsID := robot.Workspace
+	if wsID == "" {
+		nodes := wsm.Nodes()
+		nodeID := ""
+		for _, n := range nodes {
+			if n.Online {
+				nodeID = n.Name
+				break
+			}
+		}
+		if nodeID == "" {
+			return nil, fmt.Errorf("no available node for workspace")
+		}
+		wsID = workspace.DefaultWorkspaceID(robot.TeamID, nodeID)
+
+		if _, err := wsm.Get(ctx, wsID); err != nil {
+			if _, err := wsm.Create(ctx, workspace.CreateOptions{
+				ID:    wsID,
+				Name:  "Robot Workspace",
+				Owner: robot.TeamID,
+				Node:  nodeID,
+			}); err != nil {
+				return nil, fmt.Errorf("workspace create failed: %w", err)
+			}
+		}
+		robot.Workspace = wsID
+	}
+
+	return wsm.FS(ctx, wsID)
+}
+
+// initManifest creates the initial manifest.json with goals and pending task list.
+// Uses slice index (not P2's order field) so manifests always have sequential numbering.
+func (r *Runner) initManifest(exec *robottypes.Execution) {
+	if r.wsFS == nil {
+		return
+	}
+
+	goalsContent := ""
+	if exec.Goals != nil {
+		goalsContent = exec.Goals.Content
+	}
+
+	m := &Manifest{
+		ExecID:  exec.ID,
+		RobotID: r.robot.MemberID,
+		Goals:   goalsContent,
+		Tasks:   make([]ManifestTask, 0, len(exec.Tasks)),
+	}
+
+	for i, t := range exec.Tasks {
+		m.Tasks = append(m.Tasks, ManifestTask{
+			ID:           t.ID,
+			Order:        i,
+			Description:  t.Description,
+			Executor:     t.ExecutorID,
+			ExecutorType: string(t.ExecutorType),
+			Status:       string(t.Status),
+		})
+	}
+
+	r.writeManifest(m)
+}
+
+// writeManifest serializes and writes manifest.json.
+func (r *Runner) writeManifest(m *Manifest) {
+	data, err := json.MarshalIndent(m, "", "  ")
+	if err != nil {
+		kunlog.Warn("[robot-workspace] marshal manifest: %v", err)
+		return
+	}
+	p := path.Join(r.execDir, "manifest.json")
+	if err := r.wsFS.WriteFile(p, data, 0644); err != nil {
+		kunlog.Warn("[robot-workspace] write manifest: %v", err)
+	}
+}
+
+// readManifest reads and parses manifest.json from workspace.
+func (r *Runner) readManifest() (*Manifest, error) {
+	if r.wsFS == nil {
+		return nil, fmt.Errorf("wsFS not available")
+	}
+	data, err := r.wsFS.ReadFile(path.Join(r.execDir, "manifest.json"))
+	if err != nil {
+		return nil, err
+	}
+	var m Manifest
+	if err := json.Unmarshal(data, &m); err != nil {
+		return nil, err
+	}
+	return &m, nil
+}
+
+// writeTaskOutput writes the three task files and updates manifest after task completion.
+func (r *Runner) writeTaskOutput(task *robottypes.Task, result *robottypes.TaskResult, promptSnapshot string) {
+	if r.wsFS == nil {
+		return
+	}
+
+	taskID := task.ID
+
+	// Write task-NNN.input.md (prompt snapshot for debug)
+	if promptSnapshot != "" {
+		inputPath := path.Join(r.execDir, taskID+".input.md")
+		if err := r.wsFS.WriteFile(inputPath, []byte(promptSnapshot), 0644); err != nil {
+			kunlog.Warn("[robot-workspace] write %s.input.md: %v", taskID, err)
+		}
+	}
+
+	// Write task-NNN.output.md (full output)
+	outputText := formatOutputAsText(result.Output)
+	outputPath := path.Join(r.execDir, taskID+".output.md")
+	if err := r.wsFS.WriteFile(outputPath, []byte(outputText), 0644); err != nil {
+		kunlog.Warn("[robot-workspace] write %s.output.md: %v", taskID, err)
+	}
+
+	// Write task-NNN.json (metadata)
+	meta := map[string]interface{}{
+		"id":            taskID,
+		"executor":      task.ExecutorID,
+		"executor_type": string(task.ExecutorType),
+		"status":        string(task.Status),
+		"duration_ms":   result.Duration,
+		"success":       result.Success,
+	}
+	if result.Error != "" {
+		meta["error"] = result.Error
+	}
+	metaJSON, _ := json.MarshalIndent(meta, "", "  ")
+	metaPath := path.Join(r.execDir, taskID+".json")
+	if err := r.wsFS.WriteFile(metaPath, metaJSON, 0644); err != nil {
+		kunlog.Warn("[robot-workspace] write %s.json: %v", taskID, err)
+	}
+
+	r.updateManifestForTask(task, result)
+}
+
+// updateManifestForTask reads manifest, updates the matching task entry, and writes back.
+func (r *Runner) updateManifestForTask(task *robottypes.Task, result *robottypes.TaskResult) {
+	m, err := r.readManifest()
+	if err != nil {
+		kunlog.Warn("[robot-workspace] read manifest for update: %v", err)
+		return
+	}
+
+	// Scan files first so LLM summary can reference them
+	files := r.scanTaskArtifacts(task.ID)
+	outputURIs := r.extractAndVerifyFiles(result.Output)
+	files = mergeManifestFiles(files, outputURIs)
+
+	for i := range m.Tasks {
+		if m.Tasks[i].ID == task.ID {
+			if result.Success {
+				m.Tasks[i].Status = "completed"
+				summary := r.llmSummarize(task, result.Output, files)
+				if summary == "" {
+					summary = generateSummary(result.Output)
+				}
+				m.Tasks[i].Summary = summary
+				m.Tasks[i].KeyOutputs = extractKeyOutputs(result.Output)
+			} else {
+				m.Tasks[i].Status = "failed"
+				m.Tasks[i].Error = result.Error
+				if result.Error != "" {
+					m.Tasks[i].Summary = "Failed: " + result.Error
+				}
+			}
+			m.Tasks[i].Files = files
+			break
+		}
+	}
+
+	r.writeManifest(m)
+}
+
+// scanTaskArtifacts scans the task-id/ directory for produced files.
+func (r *Runner) scanTaskArtifacts(taskID string) []ManifestFile {
+	if r.wsFS == nil {
+		return nil
+	}
+
+	dirPath := path.Join(r.execDir, taskID)
+	entries, err := r.wsFS.ReadDir(dirPath)
+	if err != nil {
+		return nil
+	}
+
+	var files []ManifestFile
+	for _, e := range entries {
+		if e.IsDir() {
+			continue
+		}
+		files = append(files, ManifestFile{
+			Name: e.Name(),
+			Type: mimeFromExt(filepath.Ext(e.Name())),
+		})
+	}
+	return files
+}
+
+// llmSummarize uses a lightweight LLM to generate a concise task summary
+// from the full task context (description, output, produced files).
+// Returns empty string on any failure, allowing caller to fall back to static extraction.
+func (r *Runner) llmSummarize(task *robottypes.Task, output interface{}, files []ManifestFile) string {
+	text := flattenOutput(output)
+	if text == "" {
+		return ""
+	}
+
+	conn, _, err := llm.ResolveConnector("use::light", r.ctx.Auth)
+	if err != nil {
+		kunlog.Warn("[robot-workspace] llmSummarize resolve connector: %v", err)
+		return ""
+	}
+
+	opts := llm.BuildCompletionOptions(conn, nil)
+	instance, err := llm.New(conn, opts)
+	if err != nil {
+		kunlog.Warn("[robot-workspace] llmSummarize create LLM: %v", err)
+		return ""
+	}
+
+	var sb strings.Builder
+	sb.WriteString("Task: " + task.Description + "\n\n")
+	if len(files) > 0 {
+		sb.WriteString("Produced files:\n")
+		for _, f := range files {
+			sb.WriteString("- " + f.Name + " (" + f.Type + ")\n")
+		}
+		sb.WriteString("\n")
+	}
+	sb.WriteString("Output:\n")
+	outputText := text
+	if len(outputText) > 4000 {
+		outputText = outputText[:4000]
+	}
+	sb.WriteString(outputText)
+
+	messages := []agentcontext.Message{
+		{Role: agentcontext.RoleSystem, Content: "Summarize the task execution result in 1-2 concise sentences. " +
+			"Focus on what was actually produced or accomplished, not the process. " +
+			"If files were produced, mention them. Reply in the same language as the task description."},
+		{Role: agentcontext.RoleUser, Content: sb.String()},
+	}
+
+	agentCtx := agentcontext.New(r.ctx.Context, r.ctx.Auth, "")
+	defer agentCtx.Release()
+
+	resp, err := instance.Post(agentCtx, messages, opts)
+	if err != nil {
+		kunlog.Warn("[robot-workspace] llmSummarize Post: %v", err)
+		return ""
+	}
+
+	return extractLLMContent(resp)
+}
+
+// extractLLMContent extracts the text content from a CompletionResponse.
+func extractLLMContent(resp *agentcontext.CompletionResponse) string {
+	if resp == nil {
+		return ""
+	}
+	if s, ok := resp.Content.(string); ok {
+		return strings.TrimSpace(s)
+	}
+	return ""
+}
+
+// workspaceURIRegex matches workspace://wsID/path patterns in markdown links and plain text.
+// Excludes trailing backticks, quotes, and brackets that are markdown formatting artifacts.
+var workspaceURIRegex = regexp.MustCompile("workspace://([^/\\s)]+)/([^\\s)\\]`\"']+)")
+
+// extractAndVerifyFiles extracts workspace:// URIs from output and verifies each
+// file exists via wsFS.Stat, eliminating false positives from regex artifacts.
+func (r *Runner) extractAndVerifyFiles(output interface{}) []ManifestFile {
+	text := flattenOutput(output)
+	if text == "" || r.wsFS == nil {
+		return nil
+	}
+
+	wsID, err := r.wsFS.GetID()
+	if err != nil {
+		return nil
+	}
+	prefix := "workspace://" + wsID + "/"
+
+	matches := workspaceURIRegex.FindAllStringSubmatch(text, -1)
+	seen := make(map[string]bool)
+	var files []ManifestFile
+	for _, m := range matches {
+		uri := "workspace://" + m[1] + "/" + m[2]
+		if seen[uri] {
+			continue
+		}
+		seen[uri] = true
+
+		if !strings.HasPrefix(uri, prefix) {
+			continue
+		}
+		relPath := strings.TrimPrefix(uri, prefix)
+
+		info, err := r.wsFS.Stat(relPath)
+		if err != nil || info.IsDir() {
+			continue
+		}
+
+		name := filepath.Base(relPath)
+		files = append(files, ManifestFile{
+			Name: name,
+			Type: mimeFromExt(filepath.Ext(name)),
+			URI:  uri,
+		})
+	}
+	return files
+}
+
+// mergeManifestFiles deduplicates files from scanTaskArtifacts and extractWorkspaceURIs.
+// If a URI-bearing entry has the same Name as a scan entry, the URI is merged onto the
+// existing entry instead of creating a duplicate.
+func mergeManifestFiles(scanned []ManifestFile, fromURIs []ManifestFile) []ManifestFile {
+	if len(fromURIs) == 0 {
+		return scanned
+	}
+
+	nameIndex := make(map[string]int, len(scanned))
+	for i, f := range scanned {
+		nameIndex[f.Name] = i
+	}
+
+	for _, uf := range fromURIs {
+		if idx, exists := nameIndex[uf.Name]; exists {
+			if scanned[idx].URI == "" {
+				scanned[idx].URI = uf.URI
+			}
+		} else {
+			nameIndex[uf.Name] = len(scanned)
+			scanned = append(scanned, uf)
+		}
+	}
+	return scanned
+}
+
+// --- Summary & key_outputs extraction ---
+
+// llmPrefixPatterns are common LLM filler prefixes that carry no information.
+var llmPrefixPatterns = []string{
+	"It seems ", "It appears ", "Here is ", "Here's ",
+	"Based on ", "I encountered ", "I wasn't able ",
+	"I'm currently unable ", "Let me ", "I recommend ",
+}
+
+// generateSummary produces a concise summary of the task's actual output/result.
+// It prioritizes conclusion/summary sections over the beginning of the output,
+// because agent responses typically start with planning/thinking text.
+func generateSummary(output interface{}) string {
+	text := flattenOutput(output)
+	if text == "" {
+		return ""
+	}
+
+	const maxLen = 200
+
+	// Try to find an explicit summary/conclusion section
+	for _, heading := range []string{"## Summary", "## Conclusion", "## Result", "## 总结", "## 结论", "## 结果"} {
+		if idx := strings.Index(text, heading); idx >= 0 {
+			section := strings.TrimSpace(text[idx+len(heading):])
+			section = strings.TrimPrefix(section, "\n")
+			if nextH := strings.Index(section, "\n## "); nextH > 0 {
+				section = section[:nextH]
+			}
+			section = strings.TrimSpace(section)
+			if section != "" {
+				if len(section) > maxLen {
+					return section[:maxLen] + "..."
+				}
+				return section
+			}
+		}
+	}
+
+	// No explicit section — use last substantive paragraph as it's
+	// more likely to contain the actual result than the beginning
+	paragraphs := strings.Split(text, "\n\n")
+	for i := len(paragraphs) - 1; i >= 0; i-- {
+		p := strings.TrimSpace(paragraphs[i])
+		if p == "" || len(p) < 10 {
+			continue
+		}
+		isFiller := false
+		for _, prefix := range llmPrefixPatterns {
+			if strings.HasPrefix(p, prefix) {
+				isFiller = true
+				break
+			}
+		}
+		if isFiller {
+			continue
+		}
+		if len(p) > maxLen {
+			return p[:maxLen] + "..."
+		}
+		return p
+	}
+
+	// Fallback: skip filler and take from the beginning
+	text = skipFillerPrefixes(text)
+	if len(text) > maxLen {
+		return text[:maxLen] + "..."
+	}
+	return text
+}
+
+// skipFillerPrefixes skips past common LLM opening phrases to find substantive content.
+func skipFillerPrefixes(text string) string {
+	lines := strings.SplitN(text, "\n", 20)
+	for i, line := range lines {
+		trimmed := strings.TrimSpace(line)
+		if trimmed == "" {
+			continue
+		}
+		isFiller := false
+		for _, prefix := range llmPrefixPatterns {
+			if strings.HasPrefix(trimmed, prefix) {
+				isFiller = true
+				break
+			}
+		}
+		if !isFiller {
+			return strings.Join(lines[i:], "\n")
+		}
+	}
+	return text
+}
+
+// boldPatternRegex matches **bold text** in markdown
+var boldPatternRegex = regexp.MustCompile(`\*\*([^*]+)\*\*`)
+
+// extractKeyOutputs tries to extract structured key_outputs from the output.
+func extractKeyOutputs(output interface{}) []string {
+	if output == nil {
+		return nil
+	}
+
+	// If output is a map with key_outputs/outputs/results, extract directly
+	if m, ok := output.(map[string]interface{}); ok {
+		for _, key := range []string{"key_outputs", "outputs", "results"} {
+			if arr, ok := m[key].([]interface{}); ok {
+				result := make([]string, 0, len(arr))
+				for _, v := range arr {
+					if s, ok := v.(string); ok {
+						result = append(result, s)
+					}
+				}
+				if len(result) > 0 {
+					return capSlice(result, 5)
+				}
+			}
+		}
+	}
+
+	text := flattenOutput(output)
+
+	// Try ## headings
+	if strings.Contains(text, "\n## ") {
+		var headings []string
+		for _, line := range strings.Split(text, "\n") {
+			if strings.HasPrefix(line, "## ") {
+				headings = append(headings, strings.TrimPrefix(line, "## "))
+			}
+		}
+		if len(headings) > 0 {
+			return capSlice(headings, 5)
+		}
+	}
+
+	// Try **bold** items from numbered lists or bullet lists
+	// e.g. "1. **Model-Driven Architecture:**" or "- **Low-Code Engine**"
+	var boldItems []string
+	for _, line := range strings.Split(text, "\n") {
+		trimmed := strings.TrimSpace(line)
+		if !strings.Contains(trimmed, "**") {
+			continue
+		}
+		// Only extract from list-like lines
+		if !(strings.HasPrefix(trimmed, "- ") || strings.HasPrefix(trimmed, "* ") ||
+			(len(trimmed) > 2 && trimmed[0] >= '0' && trimmed[0] <= '9' && trimmed[1] == '.')) {
+			continue
+		}
+		matches := boldPatternRegex.FindStringSubmatch(trimmed)
+		if len(matches) >= 2 {
+			item := strings.TrimRight(matches[1], ":")
+			if len(item) > 0 && len(item) < 80 {
+				boldItems = append(boldItems, item)
+			}
+		}
+	}
+	if len(boldItems) > 0 {
+		return capSlice(boldItems, 5)
+	}
+
+	return nil
+}
+
+func capSlice(s []string, max int) []string {
+	if len(s) > max {
+		return s[:max]
+	}
+	return s
+}
+
+// flattenOutput converts any output value to a plain text string.
+func flattenOutput(output interface{}) string {
+	if output == nil {
+		return ""
+	}
+	switch v := output.(type) {
+	case string:
+		return v
+	case map[string]interface{}:
+		if text, ok := v["text"].(string); ok {
+			return text
+		}
+		if content, ok := v["content"].(string); ok {
+			return content
+		}
+		b, _ := json.Marshal(v)
+		return string(b)
+	default:
+		b, err := json.Marshal(v)
+		if err != nil {
+			return fmt.Sprintf("%v", v)
+		}
+		return string(b)
+	}
+}
+
+// formatOutputAsText converts task output to markdown text for .output.md files.
+func formatOutputAsText(output interface{}) string {
+	if output == nil {
+		return ""
+	}
+	switch v := output.(type) {
+	case string:
+		return v
+	default:
+		b, err := json.MarshalIndent(v, "", "  ")
+		if err != nil {
+			return fmt.Sprintf("%v", v)
+		}
+		return string(b)
+	}
+}
+
+// --- Prompt template rendering ---
+
+// wsTemplateData holds template variables for the workspace section.
+type wsTemplateData struct {
+	ExecDir string
+	Files   []wsFileEntry
+	TaskDir string
+}
+
+type wsFileEntry struct {
+	Path string
+	Desc string
+}
+
+// ctxTemplateData holds template variables for the execution context section.
+type ctxTemplateData struct {
+	Goals          string
+	Locale         string
+	CompletedTasks []ctxTaskEntry
+	FailedTasks    []ctxFailedEntry
+	CurrentOrder   int
+	CurrentID      string
+	CurrentDesc    string
+	CurrentType    string
+	CurrentExec    string
+	FailureWarning string
+}
+
+type ctxTaskEntry struct {
+	Seq          int
+	ID           string
+	Description  string
+	ExecutorType string
+	Executor     string
+	Summary      string
+	KeyOutputs   string
+	Files        string
+	HasFiles     bool
+}
+
+type ctxFailedEntry struct {
+	Seq         int
+	ID          string
+	Description string
+	Error       string
+}
+
+// instTemplateData holds template variables for the instructions section.
+type instTemplateData struct {
+	TaskInstructions string
+	ExpectedOutput   string
+}
+
+// buildWorkspacePrompt renders the full prompt for a task from manifest + template.
+func (r *Runner) buildWorkspacePrompt(manifest *Manifest, taskIndex int, task *robottypes.Task, taskInstructions string) string {
+	if manifest == nil || taskIndex >= len(manifest.Tasks) {
+		return taskInstructions
+	}
+
+	var sb strings.Builder
+
+	// Section 1: Workspace
+	if wsPromptTpls.Workspace != nil {
+		wd := wsTemplateData{
+			ExecDir: r.execDir + "/",
+			TaskDir: r.execDir + "/" + manifest.Tasks[taskIndex].ID + "/",
+		}
+		wd.Files = append(wd.Files, wsFileEntry{
+			Path: "manifest.json",
+			Desc: "Execution context: goals, completed task summaries, progress",
+		})
+		for i := 0; i < taskIndex; i++ {
+			t := manifest.Tasks[i]
+			if t.Status == "completed" {
+				wd.Files = append(wd.Files, wsFileEntry{
+					Path: t.ID + ".output.md",
+					Desc: "Full output: " + t.Description,
+				})
+				for _, f := range t.Files {
+					desc := "Artifact: " + f.Name
+					if f.URI != "" {
+						desc = "Artifact: " + f.Name + " (" + f.URI + ")"
+					}
+					filePath := t.ID + "/" + f.Name
+					if f.URI != "" {
+						filePath = f.URI
+					}
+					wd.Files = append(wd.Files, wsFileEntry{
+						Path: filePath,
+						Desc: desc,
+					})
+				}
+			}
+		}
+		var buf bytes.Buffer
+		if err := wsPromptTpls.Workspace.Execute(&buf, wd); err == nil {
+			sb.WriteString(buf.String())
+			sb.WriteString("\n\n")
+		}
+	}
+
+	// Section 2: Execution Context
+	if wsPromptTpls.Context != nil {
+		ct := manifest.Tasks[taskIndex]
+		cd := ctxTemplateData{
+			Goals:        manifest.Goals,
+			Locale:       r.locale,
+			CurrentID:    ct.ID,
+			CurrentOrder: taskIndex + 1,
+			CurrentDesc:  ct.Description,
+			CurrentType:  ct.ExecutorType,
+			CurrentExec:  ct.Executor,
+		}
+
+		seq := 0
+		failedCount := 0
+		for i := 0; i < taskIndex; i++ {
+			t := manifest.Tasks[i]
+			seq++
+			if t.Status == "completed" {
+				entry := ctxTaskEntry{
+					Seq:          seq,
+					ID:           t.ID,
+					Description:  t.Description,
+					ExecutorType: t.ExecutorType,
+					Executor:     t.Executor,
+					Summary:      t.Summary,
+					KeyOutputs:   strings.Join(t.KeyOutputs, ", "),
+				}
+				if len(t.Files) > 0 {
+					entry.HasFiles = true
+					names := make([]string, 0, len(t.Files))
+					for _, f := range t.Files {
+						names = append(names, f.Name)
+					}
+					entry.Files = strings.Join(names, ", ")
+				}
+				cd.CompletedTasks = append(cd.CompletedTasks, entry)
+			} else if t.Status == "failed" {
+				failedCount++
+				errMsg := t.Error
+				if errMsg == "" {
+					errMsg = t.Summary
+				}
+				cd.FailedTasks = append(cd.FailedTasks, ctxFailedEntry{
+					Seq:         seq,
+					ID:          t.ID,
+					Description: t.Description,
+					Error:       errMsg,
+				})
+			}
+		}
+
+		// P8: failure cascade warning
+		if failedCount > 0 && len(cd.CompletedTasks) == 0 {
+			cd.FailureWarning = "WARNING: All previous tasks failed. You may lack necessary input data. Do your best with available information or report the limitation."
+		} else if failedCount > 0 {
+			cd.FailureWarning = fmt.Sprintf("Note: %d previous task(s) failed. Some expected input may be missing.", failedCount)
+		}
+
+		var buf bytes.Buffer
+		if err := wsPromptTpls.Context.Execute(&buf, cd); err == nil {
+			sb.WriteString(buf.String())
+			sb.WriteString("\n\n")
+		}
+	}
+
+	// Section 3: Task Instructions (enriched with expected_output from P2)
+	if wsPromptTpls.Instructions != nil {
+		instData := instTemplateData{TaskInstructions: taskInstructions}
+		if task != nil && task.ExpectedOutput != "" {
+			instData.ExpectedOutput = task.ExpectedOutput
+		}
+		var buf bytes.Buffer
+		if err := wsPromptTpls.Instructions.Execute(&buf, instData); err == nil {
+			sb.WriteString(buf.String())
+		}
+	} else {
+		sb.WriteString("## Task Instructions\n\n")
+		sb.WriteString(taskInstructions)
+	}
+
+	return sb.String()
+}
+
+func mimeFromExt(ext string) string {
+	switch strings.ToLower(ext) {
+	case ".md":
+		return "text/markdown"
+	case ".html", ".htm":
+		return "text/html"
+	case ".json":
+		return "application/json"
+	case ".pdf":
+		return "application/pdf"
+	case ".png":
+		return "image/png"
+	case ".jpg", ".jpeg":
+		return "image/jpeg"
+	case ".csv":
+		return "text/csv"
+	case ".txt":
+		return "text/plain"
+	case ".xlsx":
+		return "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet"
+	case ".pptx":
+		return "application/vnd.openxmlformats-officedocument.presentationml.presentation"
+	default:
+		return "application/octet-stream"
+	}
+}

agent/robot/executor/standard/workspace_test.go

@@ -0,0 +1,371 @@
+package standard
+
+import (
+	"context"
+	"path"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+	"github.com/yaoapp/gou/connector"
+	"github.com/yaoapp/gou/store"
+	"github.com/yaoapp/yao/agent"
+	agentcontext "github.com/yaoapp/yao/agent/context"
+	robottypes "github.com/yaoapp/yao/agent/robot/types"
+	"github.com/yaoapp/yao/agent/testutils"
+	"github.com/yaoapp/yao/llmprovider"
+	oauthtypes "github.com/yaoapp/yao/openapi/oauth/types"
+	"github.com/yaoapp/yao/setting"
+	"github.com/yaoapp/yao/tai/volume"
+	taiworkspace "github.com/yaoapp/yao/tai/workspace"
+)
+
+// ============================================================================
+// extractLLMContent — pure unit tests (no external dependencies)
+// ============================================================================
+
+func TestExtractLLMContent(t *testing.T) {
+	t.Run("string content", func(t *testing.T) {
+		resp := &agentcontext.CompletionResponse{Content: "  hello world  "}
+		assert.Equal(t, "hello world", extractLLMContent(resp))
+	})
+
+	t.Run("nil response", func(t *testing.T) {
+		assert.Equal(t, "", extractLLMContent(nil))
+	})
+
+	t.Run("non-string content", func(t *testing.T) {
+		resp := &agentcontext.CompletionResponse{Content: []interface{}{"a", "b"}}
+		assert.Equal(t, "", extractLLMContent(resp))
+	})
+
+	t.Run("empty string content", func(t *testing.T) {
+		resp := &agentcontext.CompletionResponse{Content: "   "}
+		assert.Equal(t, "", extractLLMContent(resp))
+	})
+
+	t.Run("multiline content trimmed", func(t *testing.T) {
+		resp := &agentcontext.CompletionResponse{Content: "\n  summary line\n"}
+		assert.Equal(t, "summary line", extractLLMContent(resp))
+	})
+
+	t.Run("int content", func(t *testing.T) {
+		resp := &agentcontext.CompletionResponse{Content: 42}
+		assert.Equal(t, "", extractLLMContent(resp))
+	})
+}
+
+// ============================================================================
+// extractAndVerifyFiles — unit tests with local volume-backed FS
+// ============================================================================
+
+func newTestWorkspaceFS(t *testing.T) taiworkspace.FS {
+	t.Helper()
+	dir := t.TempDir()
+	vol := volume.NewLocal(dir)
+	t.Cleanup(func() { vol.Close() })
+	wfs := taiworkspace.New(vol, "ws-test")
+	t.Cleanup(func() { wfs.Close() })
+	return wfs
+}
+
+func TestExtractAndVerifyFiles(t *testing.T) {
+	t.Run("valid URI with existing file", func(t *testing.T) {
+		wfs := newTestWorkspaceFS(t)
+		require.NoError(t, wfs.MkdirAll("robots/r1/exec1/task-001", 0755))
+		require.NoError(t, wfs.WriteFile("robots/r1/exec1/task-001/notes.md", []byte("hello"), 0644))
+
+		r := &Runner{
+			wsFS:    wfs,
+			execDir: "robots/r1/exec1",
+		}
+		output := "I wrote the file to workspace://ws-test/robots/r1/exec1/task-001/notes.md for you."
+		files := r.extractAndVerifyFiles(output)
+
+		require.Len(t, files, 1)
+		assert.Equal(t, "notes.md", files[0].Name)
+		assert.Equal(t, "text/markdown", files[0].Type)
+		assert.Equal(t, "workspace://ws-test/robots/r1/exec1/task-001/notes.md", files[0].URI)
+	})
+
+	t.Run("URI with non-existent file filtered out", func(t *testing.T) {
+		wfs := newTestWorkspaceFS(t)
+
+		r := &Runner{
+			wsFS:    wfs,
+			execDir: "robots/r1/exec1",
+		}
+		output := "See workspace://ws-test/robots/r1/exec1/task-001/missing.pdf"
+		files := r.extractAndVerifyFiles(output)
+
+		assert.Empty(t, files)
+	})
+
+	t.Run("URI with trailing backtick excluded by regex", func(t *testing.T) {
+		wfs := newTestWorkspaceFS(t)
+		require.NoError(t, wfs.MkdirAll("robots/r1/exec1/task-001", 0755))
+		require.NoError(t, wfs.WriteFile("robots/r1/exec1/task-001/data.json", []byte("{}"), 0644))
+
+		r := &Runner{
+			wsFS:    wfs,
+			execDir: "robots/r1/exec1",
+		}
+		// Backtick-wrapped URI — the regex excludes the backtick from the captured path
+		output := "`workspace://ws-test/robots/r1/exec1/task-001/data.json`"
+		files := r.extractAndVerifyFiles(output)
+
+		require.Len(t, files, 1)
+		assert.Equal(t, "data.json", files[0].Name)
+		assert.Equal(t, "application/json", files[0].Type)
+	})
+
+	t.Run("duplicate URIs deduplicated", func(t *testing.T) {
+		wfs := newTestWorkspaceFS(t)
+		require.NoError(t, wfs.MkdirAll("robots/r1/exec1/task-001", 0755))
+		require.NoError(t, wfs.WriteFile("robots/r1/exec1/task-001/report.html", []byte("<h1>hi</h1>"), 0644))
+
+		r := &Runner{
+			wsFS:    wfs,
+			execDir: "robots/r1/exec1",
+		}
+		output := "workspace://ws-test/robots/r1/exec1/task-001/report.html and again workspace://ws-test/robots/r1/exec1/task-001/report.html"
+		files := r.extractAndVerifyFiles(output)
+
+		require.Len(t, files, 1)
+		assert.Equal(t, "report.html", files[0].Name)
+	})
+
+	t.Run("empty output returns nil", func(t *testing.T) {
+		wfs := newTestWorkspaceFS(t)
+		r := &Runner{wsFS: wfs, execDir: "robots/r1/exec1"}
+		assert.Nil(t, r.extractAndVerifyFiles(""))
+	})
+
+	t.Run("nil wsFS returns nil", func(t *testing.T) {
+		r := &Runner{wsFS: nil, execDir: "robots/r1/exec1"}
+		assert.Nil(t, r.extractAndVerifyFiles("some text with workspace://ws-test/foo/bar"))
+	})
+
+	t.Run("URI from different workspace filtered", func(t *testing.T) {
+		wfs := newTestWorkspaceFS(t)
+		r := &Runner{wsFS: wfs, execDir: "robots/r1/exec1"}
+		output := "See workspace://other-ws/robots/r1/exec1/task-001/file.txt"
+		files := r.extractAndVerifyFiles(output)
+		assert.Empty(t, files)
+	})
+
+	t.Run("directory URI filtered out", func(t *testing.T) {
+		wfs := newTestWorkspaceFS(t)
+		require.NoError(t, wfs.MkdirAll("robots/r1/exec1/task-001", 0755))
+
+		r := &Runner{wsFS: wfs, execDir: "robots/r1/exec1"}
+		output := "workspace://ws-test/robots/r1/exec1/task-001"
+		files := r.extractAndVerifyFiles(output)
+		assert.Empty(t, files)
+	})
+
+	t.Run("multiple valid files extracted", func(t *testing.T) {
+		wfs := newTestWorkspaceFS(t)
+		require.NoError(t, wfs.MkdirAll("robots/r1/exec1/task-002", 0755))
+		require.NoError(t, wfs.WriteFile("robots/r1/exec1/task-002/slides.html", []byte("<html>"), 0644))
+		require.NoError(t, wfs.WriteFile("robots/r1/exec1/task-002/slides.pdf", []byte("%PDF"), 0644))
+
+		r := &Runner{wsFS: wfs, execDir: "robots/r1/exec1"}
+		output := "Generated workspace://ws-test/robots/r1/exec1/task-002/slides.html and exported workspace://ws-test/robots/r1/exec1/task-002/slides.pdf"
+		files := r.extractAndVerifyFiles(output)
+
+		require.Len(t, files, 2)
+		names := []string{files[0].Name, files[1].Name}
+		assert.Contains(t, names, "slides.html")
+		assert.Contains(t, names, "slides.pdf")
+	})
+}
+
+// ============================================================================
+// mergeManifestFiles — pure unit tests
+// ============================================================================
+
+func TestMergeManifestFiles(t *testing.T) {
+	t.Run("empty fromURIs returns scanned unchanged", func(t *testing.T) {
+		scanned := []ManifestFile{{Name: "a.md", Type: "text/markdown"}}
+		result := mergeManifestFiles(scanned, nil)
+		assert.Equal(t, scanned, result)
+	})
+
+	t.Run("merge URI onto matching scanned entry", func(t *testing.T) {
+		scanned := []ManifestFile{{Name: "notes.md", Type: "text/markdown"}}
+		fromURIs := []ManifestFile{{Name: "notes.md", Type: "text/markdown", URI: "workspace://ws/path/notes.md"}}
+		result := mergeManifestFiles(scanned, fromURIs)
+
+		require.Len(t, result, 1)
+		assert.Equal(t, "workspace://ws/path/notes.md", result[0].URI)
+	})
+
+	t.Run("add new URI entry when no scan match", func(t *testing.T) {
+		scanned := []ManifestFile{{Name: "a.md", Type: "text/markdown"}}
+		fromURIs := []ManifestFile{{Name: "b.pdf", Type: "application/pdf", URI: "workspace://ws/b.pdf"}}
+		result := mergeManifestFiles(scanned, fromURIs)
+
+		require.Len(t, result, 2)
+		assert.Equal(t, "b.pdf", result[1].Name)
+	})
+}
+
+// ============================================================================
+// llmSummarize — integration test (real LLM call)
+// ============================================================================
+
+func setupLLMProvider(t *testing.T) {
+	t.Helper()
+
+	if err := setting.Init(); err != nil {
+		t.Skipf("setting.Init failed (store not available): %v", err)
+	}
+	if err := llmprovider.Init(); err != nil {
+		t.Skipf("llmprovider.Init failed: %v", err)
+	}
+	if err := agent.SyncLLMDefaults(); err != nil {
+		t.Skipf("SyncLLMDefaults failed: %v", err)
+	}
+
+	connIDs := connector.AIConnectors
+	if len(connIDs) == 0 {
+		t.Skip("no AI connectors available in test env")
+	}
+
+	t.Cleanup(func() {
+		s, _ := store.Get("__yao.store")
+		if s != nil {
+			s.Del("llmprovider:*")
+		}
+		c, _ := store.Get("__yao.cache")
+		if c != nil {
+			c.Del("llmprovider:*")
+		}
+	})
+}
+
+func TestLLMSummarize(t *testing.T) {
+	if testing.Short() {
+		t.Skip("skipping integration test (requires real LLM)")
+	}
+
+	testutils.Prepare(t)
+	defer testutils.Clean(t)
+	setupLLMProvider(t)
+
+	auth := &oauthtypes.AuthorizedInfo{UserID: "test-user", TeamID: "test-team"}
+	ctx := robottypes.NewContext(context.Background(), auth)
+
+	r := &Runner{
+		ctx: ctx,
+	}
+
+	task := &robottypes.Task{
+		ID:          "task-001",
+		Description: "Research Yao Agents platform and compile structured notes",
+	}
+
+	output := `## Research Findings
+
+Yao Agents is an AI-powered platform that enables developers to build intelligent agents.
+
+### Key Features
+- **Model-Driven Architecture**: Define data models in YAML/JSON
+- **Low-Code Engine**: Visual workflow builder
+- **Multi-Agent Orchestration**: Coordinate multiple AI agents
+
+### Conclusion
+Yao Agents provides a comprehensive toolkit for building production-ready AI applications with minimal boilerplate code.`
+
+	files := []ManifestFile{
+		{Name: "research-notes.md", Type: "text/markdown"},
+	}
+
+	summary := r.llmSummarize(task, output, files)
+
+	t.Logf("LLM Summary: %s", summary)
+	assert.NotEmpty(t, summary, "summary should not be empty")
+	assert.Less(t, len(summary), 500, "summary should be concise (< 500 chars)")
+}
+
+// ============================================================================
+// updateManifestForTask end-to-end — integration test
+// ============================================================================
+
+func TestUpdateManifestForTaskWithLLMSummary(t *testing.T) {
+	if testing.Short() {
+		t.Skip("skipping integration test (requires real LLM)")
+	}
+
+	testutils.Prepare(t)
+	defer testutils.Clean(t)
+	setupLLMProvider(t)
+
+	wfs := newTestWorkspaceFS(t)
+	auth := &oauthtypes.AuthorizedInfo{UserID: "test-user", TeamID: "test-team"}
+	ctx := robottypes.NewContext(context.Background(), auth)
+
+	execDir := "robots/r1/exec1"
+	r := &Runner{
+		ctx:     ctx,
+		wsFS:    wfs,
+		execDir: execDir,
+		robot:   &robottypes.Robot{MemberID: "r1"},
+	}
+
+	task := robottypes.Task{
+		ID:           "task-001",
+		Description:  "Research Yao Agents platform",
+		ExecutorID:   "yao.general",
+		ExecutorType: robottypes.ExecutorAssistant,
+		Status:       robottypes.TaskPending,
+	}
+	exec := &robottypes.Execution{
+		ID:    "exec1",
+		Tasks: []robottypes.Task{task},
+	}
+
+	r.initManifest(exec)
+
+	// Verify manifest was created with pending status
+	m, err := r.readManifest()
+	require.NoError(t, err)
+	require.Len(t, m.Tasks, 1)
+	assert.Equal(t, "pending", m.Tasks[0].Status)
+
+	// Write an artifact file that scanTaskArtifacts can discover
+	require.NoError(t, wfs.MkdirAll(path.Join(execDir, "task-001"), 0755))
+	require.NoError(t, wfs.WriteFile(path.Join(execDir, "task-001", "notes.md"), []byte("research content"), 0644))
+
+	// Simulate task completion with output referencing the artifact
+	wsID, _ := wfs.GetID()
+	result := &robottypes.TaskResult{
+		Success:  true,
+		Duration: 5000,
+		Output:   "Completed research. Notes saved to workspace://" + wsID + "/" + execDir + "/task-001/notes.md",
+	}
+
+	r.updateManifestForTask(&task, result)
+
+	// Re-read and verify
+	m, err = r.readManifest()
+	require.NoError(t, err)
+	require.Len(t, m.Tasks, 1)
+
+	mt := m.Tasks[0]
+	assert.Equal(t, "completed", mt.Status)
+	assert.NotEmpty(t, mt.Summary, "summary should be generated (LLM or fallback)")
+	t.Logf("Summary: %s", mt.Summary)
+
+	// Files should include the scanned artifact, potentially with URI merged
+	assert.NotEmpty(t, mt.Files, "files should be populated")
+	found := false
+	for _, f := range mt.Files {
+		if f.Name == "notes.md" {
+			found = true
+			assert.Equal(t, "text/markdown", f.Type)
+		}
+	}
+	assert.True(t, found, "notes.md should be in files list")
+}

agent/robot/logger/logger.go

@@ -47,7 +47,7 @@ func (l *Logger) prefix() string {
 
 func (l *Logger) Trace(format string, args ...interface{}) {
 	msg := fmt.Sprintf(format, args...)
-	if config.IsDevelopment() {
+	if config.IsDevelopment() && !config.Silent {
 		fmt.Printf("%s  → %s %s%s\n", gray, l.prefix(), msg, reset)
 	}
 	kunlog.Trace("%s %s", l.prefix(), msg)
@@ -55,7 +55,7 @@ func (l *Logger) Trace(format string, args ...interface{}) {
 
 func (l *Logger) Debug(format string, args ...interface{}) {
 	msg := fmt.Sprintf(format, args...)
-	if config.IsDevelopment() {
+	if config.IsDevelopment() && !config.Silent {
 		fmt.Printf("%s  • %s %s%s\n", gray, l.prefix(), msg, reset)
 	}
 	kunlog.Debug("%s %s", l.prefix(), msg)
@@ -63,7 +63,7 @@ func (l *Logger) Debug(format string, args ...interface{}) {
 
 func (l *Logger) Info(format string, args ...interface{}) {
 	msg := fmt.Sprintf(format, args...)
-	if config.IsDevelopment() {
+	if config.IsDevelopment() && !config.Silent {
 		fmt.Printf("%s  ℹ %s %s%s\n", cyan, l.prefix(), msg, reset)
 	}
 	kunlog.Info("%s %s", l.prefix(), msg)
@@ -71,7 +71,7 @@ func (l *Logger) Info(format string, args ...interface{}) {
 
 func (l *Logger) Warn(format string, args ...interface{}) {
 	msg := fmt.Sprintf(format, args...)
-	if config.IsDevelopment() {
+	if config.IsDevelopment() && !config.Silent {
 		fmt.Printf("%s  ⚠ %s %s%s\n", yellow, l.prefix(), msg, reset)
 	}
 	kunlog.Warn("%s %s", l.prefix(), msg)
@@ -79,7 +79,7 @@ func (l *Logger) Warn(format string, args ...interface{}) {
 
 func (l *Logger) Error(format string, args ...interface{}) {
 	msg := fmt.Sprintf(format, args...)
-	if config.IsDevelopment() {
+	if config.IsDevelopment() && !config.Silent {
 		fmt.Printf("%s  ✗ %s %s%s\n", red, l.prefix(), msg, reset)
 	}
 	kunlog.Error("%s %s", l.prefix(), msg)
@@ -94,7 +94,7 @@ func IsDev() bool {
 // Use for rich multi-line output (box-style logs, tables, etc.)
 // that should bypass the standard single-line prefix format.
 func Raw(s string) {
-	if config.IsDevelopment() {
+	if config.IsDevelopment() && !config.Silent {
 		fmt.Print(s)
 	}
 }

agent/robot/manager/interact.go

@@ -337,7 +337,6 @@ func (m *Manager) callHostAgent(ctx *types.Context, agentID string, input *types
 	}
 
 	caller := standard.NewConversationCaller(chatID)
-	caller.Connector = robot.LanguageModel
 	caller.Workspace = robot.Workspace
 	result, err := caller.CallWithMessages(ctx, agentID, string(inputJSON))
 	if err != nil {
@@ -740,7 +739,6 @@ func (m *Manager) callHostAgentStream(ctx *types.Context, agentID string, input
 	}
 
 	caller := standard.NewConversationCaller(chatID)
-	caller.Connector = robot.LanguageModel
 	caller.Workspace = robot.Workspace
 	result, err := caller.CallWithMessagesStream(ctx, agentID, string(inputJSON), streamFn)
 	if err != nil {
@@ -960,7 +958,6 @@ func (m *Manager) callHostAgentStreamRaw(ctx *types.Context, agentID string, inp
 	}
 
 	caller := standard.NewConversationCaller(chatID)
-	caller.Connector = robot.LanguageModel
 	caller.Workspace = robot.Workspace
 	result, err := caller.CallWithMessagesStreamRaw(ctx, agentID, string(inputJSON), wrappedOnMessage)
 	if err != nil {

agent/robot/manager/manager.go

@@ -524,6 +524,7 @@ func (m *Manager) Intervene(ctx *types.Context, req *types.InterveneRequest) (*t
 		Action:   req.Action,
 		Messages: req.Messages,
 		UserID:   ctx.UserID(),
+		Locale:   req.Locale,
 	}
 
 	// Handle plan.add action - schedule for later

agent/robot/types/request.go

@@ -14,6 +14,7 @@ type InterveneRequest struct {
 	Messages     []agentcontext.Message `json:"messages"`                // user input (text, images, files)
 	PlanTime     *time.Time             `json:"plan_time,omitempty"`     // for action=plan
 	ExecutorMode ExecutorMode           `json:"executor_mode,omitempty"` // optional: override robot config
+	Locale       string                 `json:"locale,omitempty"`        // language for UI display (e.g., "en", "zh")
 }
 
 // EventRequest - event trigger request

agent/robot/types/robot.go

@@ -404,10 +404,12 @@ type DeliveryContent struct {
 
 // DeliveryAttachment - Task output attachment with metadata
 type DeliveryAttachment struct {
-	Title       string `json:"title"`                 // Human-readable title
-	Description string `json:"description,omitempty"` // What this artifact is
-	TaskID      string `json:"task_id,omitempty"`     // Which task produced this
-	File        string `json:"file"`                  // Wrapper: __<uploader>://<fileID>
+	Title       string `json:"title"`                  // Human-readable title
+	Description string `json:"description,omitempty"`  // What this artifact is
+	TaskID      string `json:"task_id,omitempty"`      // Which task produced this
+	File        string `json:"file"`                   // Wrapper: __<uploader>://<fileID>, workspace://, or URL
+	Size        int64  `json:"size,omitempty"`         // File size in bytes
+	ContentType string `json:"content_type,omitempty"` // MIME type
 }
 
 // DeliveryRequest - pushed to Delivery Center (no channels - center decides based on preferences)

agent/sandbox/claude/command.go

@@ -372,9 +372,12 @@ func buildEnvironment(opts *Options, systemPrompt string) map[string]string {
 		}
 	}
 
-	// Note: System prompt and max_turns are passed via CLI flags in BuildCommand
-	// CLAUDE_SYSTEM_PROMPT environment variable is NOT supported by Claude CLI
-	// --append-system-prompt or --system-prompt flags must be used instead
+	// Prevent Claude CLI from using an excessive max_tokens that the backend
+	// API will reject. In OpenAI-proxy mode the hardcoded model is
+	// claude-sonnet-4-6 whose limit is 16384.
+	if opts.ConnectorType != "anthropic" {
+		env["CLAUDE_CODE_MAX_OUTPUT_TOKENS"] = "16384"
+	}
 
 	return env
 }

agent/sandbox/v2/claude/attachments.go

@@ -2,224 +2,19 @@ package claude
 
 import (
 	"context"
-	"fmt"
-	"path/filepath"
-	"strings"
 
 	agentContext "github.com/yaoapp/yao/agent/context"
-	"github.com/yaoapp/yao/attachment"
+	"github.com/yaoapp/yao/agent/sandbox/v2/shared"
 	workspace "github.com/yaoapp/yao/tai/workspace"
 )
 
 // prepareAttachments resolves __yao.attachment:// URLs in messages,
 // copies actual files into the workspace .attachments/{chatID}/ directory via ws.Copy,
 // and replaces multimodal content parts with text references.
+//
+// Delegates to shared.PrepareAttachments; the returned text-replaced messages
+// are used directly by the Claude CLI (which reads local files via text refs).
 func prepareAttachments(ctx context.Context, messages []agentContext.Message, chatID string, ws workspace.FS) ([]agentContext.Message, error) {
-	usedNames := make(map[string]int)
-	attachDir := ".attachments/" + chatID
-
-	result := make([]agentContext.Message, len(messages))
-	copy(result, messages)
-
-	for i, msg := range result {
-		if msg.Role != "user" {
-			continue
-		}
-
-		parts, ok := msg.Content.([]interface{})
-		if !ok {
-			if typedParts, ok := msg.Content.([]agentContext.ContentPart); ok {
-				iparts := make([]interface{}, len(typedParts))
-				for j, p := range typedParts {
-					m := map[string]interface{}{"type": string(p.Type)}
-					if p.Text != "" {
-						m["text"] = p.Text
-					}
-					if p.ImageURL != nil {
-						m["image_url"] = map[string]interface{}{
-							"url":    p.ImageURL.URL,
-							"detail": string(p.ImageURL.Detail),
-						}
-					}
-					if p.File != nil {
-						m["file"] = map[string]interface{}{
-							"url":      p.File.URL,
-							"filename": p.File.Filename,
-						}
-					}
-					iparts[j] = m
-				}
-				parts = iparts
-			} else {
-				continue
-			}
-		}
-
-		if len(parts) == 0 {
-			continue
-		}
-
-		var textParts []string
-
-		for _, item := range parts {
-			m, ok := item.(map[string]interface{})
-			if !ok {
-				continue
-			}
-			partType, _ := m["type"].(string)
-
-			switch partType {
-			case "text":
-				if text, ok := m["text"].(string); ok && text != "" {
-					textParts = append(textParts, text)
-				}
-
-			case "image_url":
-				imgData, _ := m["image_url"].(map[string]interface{})
-				if imgData == nil {
-					continue
-				}
-				url, _ := imgData["url"].(string)
-				if url == "" {
-					continue
-				}
-				uploaderName, fileID, isWrapper := attachment.Parse(url)
-				if !isWrapper {
-					textParts = append(textParts, fmt.Sprintf("[Image: %s]", url))
-					continue
-				}
-				ref, err := resolveAttachment(ctx, uploaderName, fileID, "", attachDir, usedNames, ws)
-				if err != nil {
-					textParts = append(textParts, "[Attached image: failed to load]")
-					continue
-				}
-				textParts = append(textParts, ref)
-
-			case "file":
-				fileData, _ := m["file"].(map[string]interface{})
-				if fileData == nil {
-					continue
-				}
-				url, _ := fileData["url"].(string)
-				hintName, _ := fileData["filename"].(string)
-				if url == "" {
-					continue
-				}
-				uploaderName, fileID, isWrapper := attachment.Parse(url)
-				if !isWrapper {
-					textParts = append(textParts, fmt.Sprintf("[File: %s]", url))
-					continue
-				}
-				ref, err := resolveAttachment(ctx, uploaderName, fileID, hintName, attachDir, usedNames, ws)
-				if err != nil {
-					textParts = append(textParts, "[Attached file: failed to load]")
-					continue
-				}
-				textParts = append(textParts, ref)
-			}
-		}
-
-		if len(textParts) > 0 {
-			newMsg := result[i]
-			newMsg.Content = strings.Join(textParts, "\n\n")
-			result[i] = newMsg
-		}
-	}
-
-	return result, nil
-}
-
-// resolveAttachment gets the local path of an attachment and copies it into
-// the workspace via ws.Copy("local:///abs/path", ".attachments/{chatID}/filename").
-func resolveAttachment(
-	ctx context.Context,
-	uploaderName, fileID, hintName, attachDir string,
-	usedNames map[string]int,
-	ws workspace.FS,
-) (string, error) {
-	manager, exists := attachment.Managers[uploaderName]
-	if !exists {
-		return "", fmt.Errorf("attachment manager not found: %s", uploaderName)
-	}
-
-	fileInfo, err := manager.Info(ctx, fileID)
-	if err != nil {
-		return "", fmt.Errorf("failed to get file info: %w", err)
-	}
-
-	absPath, _, err := manager.LocalPath(ctx, fileID)
-	if err != nil {
-		return "", fmt.Errorf("failed to get local path: %w", err)
-	}
-
-	filename := fileInfo.Filename
-	if filename == "" && hintName != "" {
-		filename = hintName
-	}
-	if filename == "" {
-		ext := extensionFromContentType(fileInfo.ContentType)
-		filename = fileID + ext
-	}
-
-	baseName := filename
-	if count, exists := usedNames[baseName]; exists {
-		ext := filepath.Ext(filename)
-		name := strings.TrimSuffix(filename, ext)
-		filename = fmt.Sprintf("%s_%d%s", name, count+1, ext)
-		usedNames[baseName] = count + 1
-	} else {
-		usedNames[baseName] = 0
-	}
-
-	dstPath := attachDir + "/" + filename
-	src := "local:///" + absPath
-
-	if _, err := ws.Copy(src, dstPath); err != nil {
-		return "", fmt.Errorf("failed to copy attachment to workspace: %w", err)
-	}
-
-	sizeStr := formatFileSize(fileInfo.Bytes)
-	return fmt.Sprintf("[Attached file: %s (%s, %s)]", dstPath, fileInfo.ContentType, sizeStr), nil
-}
-
-func extensionFromContentType(contentType string) string {
-	switch contentType {
-	case "image/png":
-		return ".png"
-	case "image/jpeg":
-		return ".jpg"
-	case "image/gif":
-		return ".gif"
-	case "image/webp":
-		return ".webp"
-	case "image/svg+xml":
-		return ".svg"
-	case "application/pdf":
-		return ".pdf"
-	case "text/plain":
-		return ".txt"
-	case "text/html":
-		return ".html"
-	case "text/css":
-		return ".css"
-	case "text/javascript", "application/javascript":
-		return ".js"
-	case "application/json":
-		return ".json"
-	case "application/zip":
-		return ".zip"
-	default:
-		return ""
-	}
-}
-
-func formatFileSize(bytes int) string {
-	switch {
-	case bytes >= 1024*1024:
-		return fmt.Sprintf("%.1fMB", float64(bytes)/(1024*1024))
-	case bytes >= 1024:
-		return fmt.Sprintf("%.1fKB", float64(bytes)/1024)
-	default:
-		return fmt.Sprintf("%dB", bytes)
-	}
+	processed, _, err := shared.PrepareAttachments(ctx, messages, chatID, ws)
+	return processed, err
 }

agent/sandbox/v2/claude/command.go

@@ -2,6 +2,8 @@ package claude
 
 import (
 	"context"
+	"crypto/sha256"
+	"encoding/hex"
 	"encoding/json"
 	"fmt"
 	"regexp"
@@ -10,7 +12,9 @@ import (
 
 	"github.com/google/uuid"
 	"github.com/yaoapp/gou/connector"
+	goullm "github.com/yaoapp/gou/llm"
 	"github.com/yaoapp/gou/store"
+	"github.com/yaoapp/kun/log"
 	"github.com/yaoapp/kun/str"
 	agentContext "github.com/yaoapp/yao/agent/context"
 	"github.com/yaoapp/yao/agent/sandbox/v2/types"
@@ -18,11 +22,17 @@ import (
 )
 
 const defaultA2OPort = 3099
+const defaultA2OMaxOutputTokens = 16384
 
 var yaoSessionNS = uuid.MustParse("f47ac10b-58cc-4372-a567-0e02b2c3d479")
 
 var safeNameRe = regexp.MustCompile(`[^a-zA-Z0-9_\-.]`)
 
+func hashUserID(raw string) string {
+	h := sha256.Sum256([]byte(raw))
+	return hex.EncodeToString(h[:8]) // 16 hex chars — short yet collision-safe
+}
+
 func chatIDToSessionUUID(assistantID, chatID string) string {
 	return uuid.NewSHA1(yaoSessionNS, []byte(assistantID+":"+chatID)).String()
 }
@@ -74,6 +84,9 @@ func (r *Runner) buildCommand(ctx context.Context, req *types.StreamRequest, p p
 
 	var systemPrompt string
 	envPrompt := buildSandboxEnvPrompt(p, workDir)
+	if capPrompt := buildModelCapabilityPrompt(req); capPrompt != "" {
+		envPrompt += "\n\n" + capPrompt
+	}
 	if !isContinuation && req.SystemPrompt != "" {
 		systemPrompt = req.SystemPrompt + "\n\n" + envPrompt
 	} else if !isContinuation {
@@ -127,6 +140,10 @@ func buildEnv(req *types.StreamRequest, p platform) map[string]string {
 	}
 	env["WORKDIR"] = workDir
 
+	if req.Locale != "" {
+		env["CTX_LOCALE"] = req.Locale
+	}
+
 	assistantID := req.AssistantID
 	if assistantID != "" {
 		configDir := p.PathJoin(workDir, ".yao", "assistants", assistantID)
@@ -140,69 +157,46 @@ func buildEnv(req *types.StreamRequest, p platform) map[string]string {
 
 	if req.Connector != nil {
 		setting := req.Connector.Setting()
-		host, _ := setting["host"].(string)
-		key, _ := setting["key"].(string)
-		model, _ := setting["model"].(string)
 
-		roleConnectors := getRoleConnectors(req)
-		getConn := func(id string) connector.Connector {
-			c, _ := connector.Connectors[id]
-			return c
+		var host, key, model string
+		if lc, ok := req.Connector.(goullm.LLMConnector); ok {
+			host = lc.GetURL()
+			key = lc.GetKey()
+			model = lc.GetModel()
+		}
+		if host == "" {
+			host, _ = setting["host"].(string)
+		}
+		if key == "" {
+			key, _ = setting["key"].(string)
+		}
+		if model == "" {
+			model, _ = setting["model"].(string)
 		}
 
-		if req.Connector.Is(connector.ANTHROPIC) {
-			env["ANTHROPIC_BASE_URL"] = host
-			env["ANTHROPIC_API_KEY"] = key
-			if model != "" {
-				env["ANTHROPIC_MODEL"] = model
-				env["ANTHROPIC_DEFAULT_OPUS_MODEL"] = model
-				env["ANTHROPIC_DEFAULT_SONNET_MODEL"] = model
-				env["ANTHROPIC_DEFAULT_HAIKU_MODEL"] = model
-				env["CLAUDE_CODE_SUBAGENT_MODEL"] = model
-			}
+		isAnthropic := req.Connector.Is(connector.ANTHROPIC)
 
-			if len(roleConnectors) > 0 {
-				primaryHost := host
-				for role, rm := range claudeRoleEnvMap {
-					if role == "primary" {
-						continue
-					}
-					rc := resolveRoleConnector(role, roleConnectors, req.UserExplicit, getConn)
-					if rc == nil {
-						continue
-					}
-					rcHost := connectorHost(rc)
-					if rcHost == primaryHost && supportsProtocol(rc, "anthropic") {
-						rcModel, _ := rc.Setting()["model"].(string)
-						if rcModel != "" {
-							env[rm.EnvVar] = rcModel
-						}
-					}
-				}
-			}
+		if isAnthropic {
+			setAnthropicModelEnv(env, host, key, model, req.Connector)
+			applyAnthropicRoleOverrides(env, host, req.Roles)
 		} else {
-			connectorID := req.Connector.ID()
-			env["ANTHROPIC_BASE_URL"] = fmt.Sprintf("http://127.0.0.1:%d/c/%s", defaultA2OPort, connectorID)
-			env["ANTHROPIC_API_KEY"] = "dummy"
-			env["ANTHROPIC_MODEL"] = "claude-sonnet-4-6"
-			env["ANTHROPIC_DEFAULT_OPUS_MODEL"] = "claude-sonnet-4-6"
-			env["ANTHROPIC_DEFAULT_SONNET_MODEL"] = "claude-sonnet-4-6"
-			env["ANTHROPIC_DEFAULT_HAIKU_MODEL"] = "claude-sonnet-4-6"
-			env["CLAUDE_CODE_SUBAGENT_MODEL"] = "claude-sonnet-4-6"
+			setA2OModelEnv(env, req.Connector.ID(), model, req.Connector)
+			applyA2ORoleOverrides(env, req.Roles)
+		}
 
-			if len(roleConnectors) > 0 {
-				for role, rm := range claudeRoleEnvMap {
-					if role == "primary" {
-						continue
-					}
-					rc := resolveRoleConnector(role, roleConnectors, req.UserExplicit, getConn)
-					if rc == nil {
-						continue
-					}
-					env[rm.EnvVar] = rm.ModelName
+		if lc, ok := req.Connector.(goullm.LLMConnector); ok {
+			if caps := lc.GetCapabilities(); caps != nil {
+				if caps.MaxOutputTokens > 0 {
+					env["CLAUDE_CODE_MAX_OUTPUT_TOKENS"] = fmt.Sprintf("%d", caps.MaxOutputTokens)
+				}
+				if caps.MaxInputTokens > 0 {
+					env["CLAUDE_CODE_AUTO_COMPACT_WINDOW"] = fmt.Sprintf("%d", caps.MaxInputTokens)
 				}
 			}
 		}
+		if _, ok := env["CLAUDE_CODE_MAX_OUTPUT_TOKENS"]; !ok && !req.Connector.Is(connector.ANTHROPIC) {
+			env["CLAUDE_CODE_MAX_OUTPUT_TOKENS"] = fmt.Sprintf("%d", defaultA2OMaxOutputTokens)
+		}
 
 		if thinking, ok := setting["thinking"].(map[string]interface{}); ok {
 			thinkType, _ := thinking["type"].(string)
@@ -232,6 +226,40 @@ func buildEnv(req *types.StreamRequest, p platform) map[string]string {
 		}
 	}
 
+	logger := req.Logger
+	if logger == nil {
+		logger = agentContext.NoopLogger()
+	}
+	connectorID := ""
+	if req.Connector != nil {
+		connectorID = req.Connector.ID()
+	}
+	logger.Debug("claude-env: connector=%s isAnthropic=%v", connectorID, req.Connector != nil && req.Connector.Is(connector.ANTHROPIC))
+	logger.Debug("claude-env: ANTHROPIC_MODEL=%s", env["ANTHROPIC_MODEL"])
+	logger.Debug("claude-env: OPUS_MODEL=%s SONNET_MODEL=%s HAIKU_MODEL=%s",
+		env["ANTHROPIC_DEFAULT_OPUS_MODEL"],
+		env["ANTHROPIC_DEFAULT_SONNET_MODEL"],
+		env["ANTHROPIC_DEFAULT_HAIKU_MODEL"])
+	logger.Debug("claude-env: CUSTOM_MODEL_OPTION=%s CAPABILITIES=%s",
+		env["ANTHROPIC_CUSTOM_MODEL_OPTION"],
+		env["ANTHROPIC_CUSTOM_MODEL_OPTION_SUPPORTED_CAPABILITIES"])
+	logger.Debug("claude-env: MAX_THINKING_TOKENS=%s", env["MAX_THINKING_TOKENS"])
+
+	// Override metadata.user_id with a sanitized value.
+	// Claude CLI sets metadata.user_id to a JSON object that third-party
+	// Anthropic-compatible APIs (e.g. DeepSeek) reject because the value
+	// doesn't match ^[a-zA-Z0-9_-]+$.
+	if _, ok := env["CLAUDE_CODE_EXTRA_BODY"]; !ok {
+		uid := "yao-sandbox"
+		if req.Config != nil && req.Config.Owner != "" {
+			uid = hashUserID(req.Config.Owner)
+		} else if assistantID != "" {
+			uid = hashUserID(assistantID)
+		}
+		env["CLAUDE_CODE_EXTRA_BODY"] = fmt.Sprintf(`{"metadata":{"user_id":"%s"}}`, uid)
+	}
+	logger.Debug("claude-env: EXTRA_BODY=%s", env["CLAUDE_CODE_EXTRA_BODY"])
+
 	return env
 }
 
@@ -302,26 +330,149 @@ func buildSandboxEnvPrompt(p platform, workDir string) string {
 
 	shellNote := p.EnvPromptNote()
 
-	envVarSyntax := "$VAR_NAME"
-	if osName == "windows" {
-		envVarSyntax = "$env:VAR_NAME"
-	}
-
 	return fmt.Sprintf(`## Sandbox Environment
 
 - **Operating System**: %[2]s
 - **Shell**: %[3]s
 - **Working Directory**: %[1]s
 - **File Access**: You have full read/write access to %[1]s
-- **Environment variable syntax**: `+"`%[5]s`"+` (e.g. `+"`$CTX_SKILLS_DIR`"+` on POSIX, `+"`$env:CTX_SKILLS_DIR`"+` on Windows)%[4]s
+%[4]s`, workDir, osName, shell, shellNote)
+}
 
-## User Attachments
+func buildModelCapabilityPrompt(req *types.StreamRequest) string {
+	if req.Connector == nil {
+		return ""
+	}
 
-User-uploaded files (images, documents, code files, etc.) are placed in %[1]s/.attachments/{chatID}/
-Each chat session has its own subdirectory to avoid conflicts.
-When the user references an attached file, read it from this directory using the Read or Bash tool.
-For image files, you can view them directly as Claude supports vision on local files.
-`, workDir, osName, shell, shellNote, envVarSyntax)
+	lc, ok := req.Connector.(goullm.LLMConnector)
+	if !ok {
+		return ""
+	}
+	primaryModel := lc.GetModel()
+	if primaryModel == "" {
+		return ""
+	}
+	primaryCaps := lc.GetCapabilities()
+
+	type tierInfo struct {
+		tier  string
+		alias string
+		model string
+		caps  *goullm.Capabilities
+		conn  connector.Connector
+	}
+
+	tiers := []tierInfo{
+		{tier: "Default", alias: "sonnet", model: primaryModel, caps: primaryCaps, conn: req.Connector},
+	}
+
+	hasDifferentTier := false
+	if rc, exists := req.Roles["heavy"]; exists && rc != nil {
+		m := connectorModel(rc)
+		if m != "" {
+			caps := connectorCaps(rc)
+			tiers = append(tiers, tierInfo{tier: "Heavy", alias: "opus", model: m, caps: caps, conn: rc})
+			if m != primaryModel {
+				hasDifferentTier = true
+			}
+		}
+	}
+	if rc, exists := req.Roles["light"]; exists && rc != nil {
+		m := connectorModel(rc)
+		if m != "" {
+			caps := connectorCaps(rc)
+			tiers = append(tiers, tierInfo{tier: "Light", alias: "haiku", model: m, caps: caps, conn: rc})
+			if m != primaryModel {
+				hasDifferentTier = true
+			}
+		}
+	}
+
+	var sb strings.Builder
+	sb.WriteString("## Model Capabilities\n\n")
+	sb.WriteString(fmt.Sprintf("Your current model: `%s`\n", primaryModel))
+
+	if hasDifferentTier {
+		sb.WriteString("\n### Available Model Tiers\n\n")
+		sb.WriteString("| Tier | Alias | Model | Capabilities |\n")
+		sb.WriteString("| ---- | ----- | ----- | ------------ |\n")
+		for _, t := range tiers {
+			capList := formatCapabilities(t.caps, t.conn)
+			sb.WriteString(fmt.Sprintf("| %s | %s | %s | %s |\n", t.tier, t.alias, t.model, capList))
+		}
+	}
+
+	var guidance []string
+	if hasDifferentTier {
+		guidance = append(guidance,
+			"For complex reasoning, multi-step analysis, or tasks requiring deep thought, delegate to a sub-agent with `model: \"opus\"`",
+			"For simple tasks (formatting, translation, summarization), use `model: \"haiku\"` for faster responses",
+		)
+	}
+
+	primaryHasVision := primaryCaps.HasVision()
+	if !primaryHasVision {
+		if _, hasVisionRole := req.Roles["vision"]; hasVisionRole {
+			guidance = append(guidance,
+				"**Image/Vision**: Your current model cannot process images directly. Use the `image_read` system tool (`tai tool image_read`) to analyze images — see the yao-image skill for details",
+			)
+		}
+	}
+
+	if len(guidance) > 0 {
+		sb.WriteString("\n### Usage Guidance\n\n")
+		for _, g := range guidance {
+			sb.WriteString("- " + g + "\n")
+		}
+	}
+
+	if !hasDifferentTier && len(guidance) == 0 {
+		return ""
+	}
+
+	return sb.String()
+}
+
+func connectorModel(c connector.Connector) string {
+	if lc, ok := c.(goullm.LLMConnector); ok {
+		if m := lc.GetModel(); m != "" {
+			return m
+		}
+	}
+	m, _ := c.Setting()["model"].(string)
+	return m
+}
+
+func connectorCaps(c connector.Connector) *goullm.Capabilities {
+	if lc, ok := c.(goullm.LLMConnector); ok {
+		return lc.GetCapabilities()
+	}
+	return nil
+}
+
+func formatCapabilities(caps *goullm.Capabilities, conn connector.Connector) string {
+	var parts []string
+	hasThinking := caps.HasReasoning()
+	if !hasThinking && conn != nil {
+		if thinking, ok := conn.Setting()["thinking"].(map[string]interface{}); ok {
+			if t, _ := thinking["type"].(string); t == "enabled" {
+				hasThinking = true
+			}
+		}
+	}
+	if hasThinking {
+		parts = append(parts, "thinking")
+	}
+	if caps.HasVision() {
+		parts = append(parts, "vision")
+	}
+	if caps.HasToolCalls() {
+		parts = append(parts, "tool_calls")
+	}
+	if len(parts) == 0 {
+		return "-"
+	}
+	return strings.Join(parts, ", ")
 }
 
 func hasExistingSession(ctx context.Context, computer infra.Computer, p platform, assistantID string) bool {
@@ -398,24 +549,23 @@ func buildLastUserMessageJSONL(messages []agentContext.Message) string {
 }
 
 // claudeRoleEnvMap maps abstract Yao model roles to Claude CLI environment
-// variables and virtual model name identifiers used as A2O route keys.
-// ModelName uniqueness is only required among roles that have independent
-// connectors (i.e. are added to the A2O routes map).
-var claudeRoleEnvMap = map[string]struct {
-	EnvVar    string
-	ModelName string
-}{
-	"primary":  {EnvVar: "ANTHROPIC_MODEL", ModelName: "claude-sonnet-4-6"},
-	"heavy":    {EnvVar: "ANTHROPIC_DEFAULT_OPUS_MODEL", ModelName: "claude-opus-4-6"},
-	"light":    {EnvVar: "ANTHROPIC_DEFAULT_HAIKU_MODEL", ModelName: "claude-haiku-4-5"},
-	"subagent": {EnvVar: "CLAUDE_CODE_SUBAGENT_MODEL", ModelName: "claude-subagent-4-6"},
-	"vision":   {EnvVar: "ANTHROPIC_DEFAULT_SONNET_MODEL", ModelName: "claude-vision-4-5"},
+// variables. Only roles with matching Claude CLI env vars are listed here.
+// ANTHROPIC_DEFAULT_SONNET_MODEL is set to the primary model in buildEnv.
+var claudeRoleEnvMap = map[string]struct{ EnvVar string }{
+	"default": {EnvVar: "ANTHROPIC_MODEL"},
+	"heavy":   {EnvVar: "ANTHROPIC_DEFAULT_OPUS_MODEL"},
+	"light":   {EnvVar: "ANTHROPIC_DEFAULT_HAIKU_MODEL"},
 }
 
 func connectorHost(c connector.Connector) string {
 	if c == nil {
 		return ""
 	}
+	if lc, ok := c.(goullm.LLMConnector); ok {
+		if u := lc.GetURL(); u != "" {
+			return u
+		}
+	}
 	host, _ := c.Setting()["host"].(string)
 	return host
 }
@@ -443,33 +593,149 @@ func supportsProtocol(c connector.Connector, proto string) bool {
 	return false
 }
 
-// resolveRoleConnector determines which connector to use for a given role.
-// Returns nil when the role should use the primary connector (caller decides).
-func resolveRoleConnector(
-	role string,
-	roleConnectors map[string]*types.RoleConnector,
-	userExplicit bool,
-	getConnector func(id string) connector.Connector,
-) connector.Connector {
-	rc, ok := roleConnectors[role]
-	if !ok || rc == nil {
-		return nil
-	}
-	if rc.Override == "user" && userExplicit {
-		return nil
-	}
-	return getConnector(rc.Connector)
-}
-
-func getRoleConnectors(req *types.StreamRequest) map[string]*types.RoleConnector {
-	if req.Config == nil {
-		return nil
-	}
-	return req.Config.Runner.Connectors
-}
-
 var claudeArgWhitelist = map[string]string{
 	"max_turns":        "--max-turns",
 	"disallowed_tools": "--disallowed-tools",
 	"allowed_tools":    "--allowedTools",
 }
+
+func isStandardAnthropicModel(model string) bool {
+	return strings.HasPrefix(model, "claude-") || strings.HasPrefix(model, "anthropic.")
+}
+
+func buildClaudeCodeCapabilities(conn connector.Connector) string {
+	if conn == nil {
+		return ""
+	}
+	setting := conn.Setting()
+	if setting == nil {
+		return ""
+	}
+	var caps []string
+	if thinking, ok := setting["thinking"].(map[string]interface{}); ok {
+		if thinkType, _ := thinking["type"].(string); thinkType == "enabled" {
+			caps = append(caps, "thinking")
+		}
+	}
+	return strings.Join(caps, ",")
+}
+
+func setAnthropicModelEnv(env map[string]string, host, key, model string, conn connector.Connector) {
+	env["ANTHROPIC_BASE_URL"] = host
+	env["ANTHROPIC_API_KEY"] = key
+	if model == "" {
+		return
+	}
+	env["ANTHROPIC_MODEL"] = model
+	env["ANTHROPIC_DEFAULT_OPUS_MODEL"] = model
+	env["ANTHROPIC_DEFAULT_SONNET_MODEL"] = model
+	env["ANTHROPIC_DEFAULT_HAIKU_MODEL"] = model
+
+	if isStandardAnthropicModel(model) {
+		return
+	}
+	caps := buildClaudeCodeCapabilities(conn)
+	env["ANTHROPIC_CUSTOM_MODEL_OPTION"] = model
+	env["ANTHROPIC_CUSTOM_MODEL_OPTION_NAME"] = model
+	env["ANTHROPIC_DEFAULT_OPUS_MODEL_NAME"] = model
+	env["ANTHROPIC_DEFAULT_SONNET_MODEL_NAME"] = model
+	env["ANTHROPIC_DEFAULT_HAIKU_MODEL_NAME"] = model
+	if caps != "" {
+		env["ANTHROPIC_CUSTOM_MODEL_OPTION_SUPPORTED_CAPABILITIES"] = caps
+		env["ANTHROPIC_DEFAULT_OPUS_MODEL_SUPPORTED_CAPABILITIES"] = caps
+		env["ANTHROPIC_DEFAULT_SONNET_MODEL_SUPPORTED_CAPABILITIES"] = caps
+		env["ANTHROPIC_DEFAULT_HAIKU_MODEL_SUPPORTED_CAPABILITIES"] = caps
+	}
+}
+
+func applyAnthropicRoleOverrides(
+	env map[string]string,
+	primaryHost string,
+	roles map[string]connector.Connector,
+) {
+	for role, rm := range claudeRoleEnvMap {
+		if role == "default" {
+			continue
+		}
+		rc, ok := roles[role]
+		if !ok || rc == nil {
+			continue
+		}
+		roleHost := connectorHost(rc)
+		if roleHost != primaryHost {
+			log.Warn("[claude] role %s: host mismatch (%s != %s), falling back to primary", role, roleHost, primaryHost)
+			continue
+		}
+		if !supportsProtocol(rc, "anthropic") {
+			log.Warn("[claude] role %s: not anthropic protocol, falling back to primary", role)
+			continue
+		}
+		rcModel, _ := rc.Setting()["model"].(string)
+		if rcModel == "" {
+			continue
+		}
+		env[rm.EnvVar] = rcModel
+		if isStandardAnthropicModel(rcModel) {
+			continue
+		}
+		env[rm.EnvVar+"_NAME"] = rcModel
+		if caps := buildClaudeCodeCapabilities(rc); caps != "" {
+			env[rm.EnvVar+"_SUPPORTED_CAPABILITIES"] = caps
+		}
+	}
+}
+
+func setA2OModelEnv(env map[string]string, connectorID, model string, conn connector.Connector) {
+	env["ANTHROPIC_BASE_URL"] = fmt.Sprintf("http://127.0.0.1:%d/c/%s", defaultA2OPort, connectorID)
+	env["ANTHROPIC_API_KEY"] = "dummy"
+	env["ANTHROPIC_MODEL"] = model
+	env["ANTHROPIC_DEFAULT_OPUS_MODEL"] = model
+	env["ANTHROPIC_DEFAULT_SONNET_MODEL"] = model
+	env["ANTHROPIC_DEFAULT_HAIKU_MODEL"] = model
+
+	if !isStandardAnthropicModel(model) {
+		env["ANTHROPIC_CUSTOM_MODEL_OPTION"] = model
+		env["ANTHROPIC_CUSTOM_MODEL_OPTION_NAME"] = model
+		env["ANTHROPIC_DEFAULT_OPUS_MODEL_NAME"] = model
+		env["ANTHROPIC_DEFAULT_SONNET_MODEL_NAME"] = model
+		env["ANTHROPIC_DEFAULT_HAIKU_MODEL_NAME"] = model
+		if caps := buildClaudeCodeCapabilities(conn); caps != "" {
+			env["ANTHROPIC_CUSTOM_MODEL_OPTION_SUPPORTED_CAPABILITIES"] = caps
+			env["ANTHROPIC_DEFAULT_OPUS_MODEL_SUPPORTED_CAPABILITIES"] = caps
+			env["ANTHROPIC_DEFAULT_SONNET_MODEL_SUPPORTED_CAPABILITIES"] = caps
+			env["ANTHROPIC_DEFAULT_HAIKU_MODEL_SUPPORTED_CAPABILITIES"] = caps
+		}
+	}
+}
+
+func applyA2ORoleOverrides(
+	env map[string]string,
+	roles map[string]connector.Connector,
+) {
+	for role, rm := range claudeRoleEnvMap {
+		if role == "default" {
+			continue
+		}
+		rc, ok := roles[role]
+		if !ok || rc == nil {
+			continue
+		}
+		var rcModel string
+		if lc, ok := rc.(goullm.LLMConnector); ok {
+			rcModel = lc.GetModel()
+		}
+		if rcModel == "" {
+			rcModel, _ = rc.Setting()["model"].(string)
+		}
+		if rcModel == "" {
+			continue
+		}
+		env[rm.EnvVar] = rcModel
+		if !isStandardAnthropicModel(rcModel) {
+			env[rm.EnvVar+"_NAME"] = rcModel
+			if caps := buildClaudeCodeCapabilities(rc); caps != "" {
+				env[rm.EnvVar+"_SUPPORTED_CAPABILITIES"] = caps
+			}
+		}
+	}
+}

agent/sandbox/v2/claude/command_test.go

@@ -9,6 +9,7 @@ import (
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
 	"github.com/yaoapp/gou/connector"
+	goullm "github.com/yaoapp/gou/llm"
 	gouTypes "github.com/yaoapp/gou/types"
 	"github.com/yaoapp/xun/dbal/query"
 	"github.com/yaoapp/xun/dbal/schema"
@@ -308,7 +309,6 @@ func TestBuildSandboxEnvPrompt(t *testing.T) {
 	assert.Contains(t, prompt, "darwin")
 	assert.Contains(t, prompt, "bash")
 	assert.Contains(t, prompt, "Sandbox Environment")
-	assert.Contains(t, prompt, ".attachments")
 }
 
 func TestBuildSandboxEnvPrompt_WindowsPlatform(t *testing.T) {
@@ -525,64 +525,6 @@ func TestSupportsProtocol(t *testing.T) {
 	assert.True(t, supportsProtocol(oai, "openai"))
 }
 
-func TestResolveRoleConnector_Undeclared(t *testing.T) {
-	roles := map[string]*types.RoleConnector{}
-	result := resolveRoleConnector("heavy", roles, false, func(id string) connector.Connector { return nil })
-	assert.Nil(t, result)
-}
-
-func TestResolveRoleConnector_Force(t *testing.T) {
-	heavyConn := newOpenAIConnector("thinking", "https://api.thinking.com", "think-model", "k")
-	roles := map[string]*types.RoleConnector{
-		"heavy": {Connector: "thinking", Override: "force"},
-	}
-	result := resolveRoleConnector("heavy", roles, true, func(id string) connector.Connector {
-		if id == "thinking" {
-			return heavyConn
-		}
-		return nil
-	})
-	assert.Equal(t, heavyConn, result)
-}
-
-func TestResolveRoleConnector_UserExplicit(t *testing.T) {
-	roles := map[string]*types.RoleConnector{
-		"heavy": {Connector: "thinking", Override: "user"},
-	}
-	result := resolveRoleConnector("heavy", roles, true, func(id string) connector.Connector {
-		return newOpenAIConnector("thinking", "h", "m", "k")
-	})
-	assert.Nil(t, result, "override=user + userExplicit=true => use user's connector")
-}
-
-func TestResolveRoleConnector_UserNotExplicit(t *testing.T) {
-	heavyConn := newOpenAIConnector("thinking", "h", "m", "k")
-	roles := map[string]*types.RoleConnector{
-		"heavy": {Connector: "thinking", Override: "user"},
-	}
-	result := resolveRoleConnector("heavy", roles, false, func(id string) connector.Connector {
-		if id == "thinking" {
-			return heavyConn
-		}
-		return nil
-	})
-	assert.Equal(t, heavyConn, result, "override=user + userExplicit=false => use sandbox connector")
-}
-
-// --- buildEnv with multi-connector ---
-
-func registerTestConnectors(t *testing.T, connectors map[string]connector.Connector) func() {
-	t.Helper()
-	for id, c := range connectors {
-		connector.Connectors[id] = c
-	}
-	return func() {
-		for id := range connectors {
-			delete(connector.Connectors, id)
-		}
-	}
-}
-
 func TestBuildEnv_OpenAI_SingleConnector(t *testing.T) {
 	oai := newOpenAIConnector("kimi", "https://api.moonshot.cn", "kimi-k2.5", "sk-test")
 	req := &types.StreamRequest{
@@ -595,37 +537,32 @@ func TestBuildEnv_OpenAI_SingleConnector(t *testing.T) {
 	env := buildEnv(req, p)
 	assert.Contains(t, env["ANTHROPIC_BASE_URL"], "127.0.0.1")
 	assert.Contains(t, env["ANTHROPIC_BASE_URL"], "kimi")
-	assert.Equal(t, "claude-sonnet-4-6", env["ANTHROPIC_MODEL"])
-	assert.Equal(t, "claude-sonnet-4-6", env["ANTHROPIC_DEFAULT_OPUS_MODEL"])
+	assert.Equal(t, "kimi-k2.5", env["ANTHROPIC_MODEL"])
+	assert.Equal(t, "kimi-k2.5", env["ANTHROPIC_DEFAULT_OPUS_MODEL"])
 }
 
 func TestBuildEnv_OpenAI_MultiConnector(t *testing.T) {
 	primary := newOpenAIConnector("kimi", "https://api.moonshot.cn", "kimi-k2.5", "sk-test")
-	vision := newOpenAIConnector("vision-conn", "https://api.vision.com", "vis-model", "sk-v")
-
-	cleanup := registerTestConnectors(t, map[string]connector.Connector{
-		"vision-conn": vision,
-	})
-	defer cleanup()
+	heavyConn := newOpenAIConnector("heavy-conn", "https://api.heavy.com", "heavy-model", "sk-h")
 
 	req := &types.StreamRequest{
-		Config: &types.SandboxConfig{
-			Runner: types.RunnerConfig{
-				Connectors: map[string]*types.RoleConnector{
-					"vision": {Connector: "vision-conn", Override: "force"},
-				},
-			},
-		},
+		Config:    &types.SandboxConfig{},
 		Connector: primary,
+		Roles: map[string]connector.Connector{
+			"default": primary,
+			"heavy":   heavyConn,
+		},
 	}
 	req.Computer = newFakeComputer("/workspace")
 	p := testPlatform()
 
 	env := buildEnv(req, p)
-	assert.Equal(t, "claude-vision-4-5", env["ANTHROPIC_DEFAULT_SONNET_MODEL"],
-		"vision role should get its virtual model name for A2O routing")
-	assert.Equal(t, "claude-sonnet-4-6", env["ANTHROPIC_MODEL"],
-		"primary should keep default virtual model")
+	assert.Equal(t, "heavy-model", env["ANTHROPIC_DEFAULT_OPUS_MODEL"],
+		"heavy role should use actual model name from connector")
+	assert.Equal(t, "kimi-k2.5", env["ANTHROPIC_MODEL"],
+		"primary should use actual model name from connector")
+	assert.Equal(t, "kimi-k2.5", env["ANTHROPIC_CUSTOM_MODEL_OPTION"],
+		"non-standard model should set custom model option")
 }
 
 func TestBuildEnv_Anthropic_SingleConnector(t *testing.T) {
@@ -647,20 +584,13 @@ func TestBuildEnv_Anthropic_MultiConnector_Compatible(t *testing.T) {
 	primary := newAnthropicConnector("claude", "https://api.yao.run", "claude-sonnet-4-20250514", "sk-ant")
 	lightConn := newDualProtoConnector("light-conn", "https://api.yao.run", "claude-haiku-3-5-20241022", "sk-light")
 
-	cleanup := registerTestConnectors(t, map[string]connector.Connector{
-		"light-conn": lightConn,
-	})
-	defer cleanup()
-
 	req := &types.StreamRequest{
-		Config: &types.SandboxConfig{
-			Runner: types.RunnerConfig{
-				Connectors: map[string]*types.RoleConnector{
-					"light": {Connector: "light-conn", Override: "force"},
-				},
-			},
-		},
+		Config:    &types.SandboxConfig{},
 		Connector: primary,
+		Roles: map[string]connector.Connector{
+			"default": primary,
+			"light":   lightConn,
+		},
 	}
 	req.Computer = newFakeComputer("/workspace")
 	p := testPlatform()
@@ -692,10 +622,10 @@ func TestBuildSingleA2OConfig_Nil(t *testing.T) {
 
 func TestInjectA2OConfigWithRoutes_BuildsCorrectJSON(t *testing.T) {
 	primary := newOpenAIConnector("kimi", "https://api.moonshot.cn", "kimi-k2.5", "sk-kimi")
-	vision := newOpenAIConnector("vision", "https://api.vision.com", "vis-model", "sk-v")
+	heavyConn := newOpenAIConnector("heavy", "https://api.heavy.com", "heavy-model", "sk-h")
 
 	roleConnectors := map[string]connector.Connector{
-		"claude-vision-4-5": vision,
+		"heavy-model": heavyConn,
 	}
 
 	primaryCfg := buildSingleA2OConfig(primary)
@@ -720,10 +650,10 @@ func TestInjectA2OConfigWithRoutes_BuildsCorrectJSON(t *testing.T) {
 	require.True(t, ok, "routes should be present in JSON")
 	assert.Len(t, routesMap, 1)
 
-	visionRoute, ok := routesMap["claude-vision-4-5"].(map[string]interface{})
+	heavyRoute, ok := routesMap["heavy-model"].(map[string]interface{})
 	require.True(t, ok)
-	assert.Equal(t, "vis-model", visionRoute["model"])
-	assert.Contains(t, visionRoute["backend"], "api.vision.com")
+	assert.Equal(t, "heavy-model", heavyRoute["model"])
+	assert.Contains(t, heavyRoute["backend"], "api.heavy.com")
 }
 
 func TestResolveAllRoleConnectors_Empty(t *testing.T) {
@@ -736,48 +666,191 @@ func TestResolveAllRoleConnectors_Empty(t *testing.T) {
 }
 
 func TestResolveAllRoleConnectors_WithRoles(t *testing.T) {
-	vision := newOpenAIConnector("vis", "https://vis.com", "vis-m", "sk")
-	cleanup := registerTestConnectors(t, map[string]connector.Connector{"vis": vision})
-	defer cleanup()
+	primaryConn := newOpenAIConnector("primary", "https://primary.com", "primary-m", "k")
+	heavyConn := newOpenAIConnector("hvy", "https://heavy.com", "heavy-m", "sk")
 
 	req := &types.StreamRequest{
-		Config: &types.SandboxConfig{
-			Runner: types.RunnerConfig{
-				Connectors: map[string]*types.RoleConnector{
-					"vision": {Connector: "vis", Override: "force"},
-				},
-			},
+		Config:    &types.SandboxConfig{},
+		Connector: primaryConn,
+		Roles: map[string]connector.Connector{
+			"default": primaryConn,
+			"heavy":   heavyConn,
 		},
-		Connector: newOpenAIConnector("primary", "h", "m", "k"),
 	}
 	result := resolveAllRoleConnectors(req)
-	assert.Len(t, result, 1)
-	assert.Equal(t, vision, result["claude-vision-4-5"])
+	assert.Len(t, result, 2)
+	assert.Equal(t, primaryConn, result["primary-m"])
+	assert.Equal(t, heavyConn, result["heavy-m"])
 }
 
 func TestBuildEnv_Anthropic_MultiConnector_Incompatible(t *testing.T) {
 	primary := newAnthropicConnector("claude", "https://api.anthropic.com", "claude-sonnet-4-20250514", "sk-ant")
-	visionConn := newOpenAIConnector("vision-oai", "https://api.openai.com", "gpt-4o", "sk-oai")
-
-	cleanup := registerTestConnectors(t, map[string]connector.Connector{
-		"vision-oai": visionConn,
-	})
-	defer cleanup()
+	heavyConn := newOpenAIConnector("heavy-oai", "https://api.openai.com", "gpt-4o", "sk-oai")
 
 	req := &types.StreamRequest{
-		Config: &types.SandboxConfig{
-			Runner: types.RunnerConfig{
-				Connectors: map[string]*types.RoleConnector{
-					"vision": {Connector: "vision-oai", Override: "force"},
-				},
-			},
-		},
+		Config:    &types.SandboxConfig{},
 		Connector: primary,
+		Roles: map[string]connector.Connector{
+			"default": primary,
+			"heavy":   heavyConn,
+		},
 	}
 	req.Computer = newFakeComputer("/workspace")
 	p := testPlatform()
 
 	env := buildEnv(req, p)
-	assert.Equal(t, "claude-sonnet-4-20250514", env["ANTHROPIC_DEFAULT_SONNET_MODEL"],
-		"incompatible connector: vision should keep primary model (different host, no anthropic protocol)")
+	assert.Equal(t, "claude-sonnet-4-20250514", env["ANTHROPIC_DEFAULT_OPUS_MODEL"],
+		"incompatible connector: heavy should keep primary model (different host, no anthropic protocol)")
+}
+
+// --- fakeLLMConnector implements both connector.Connector and goullm.LLMConnector ---
+
+type fakeLLMConnector struct {
+	fakeConnector
+	model string
+	caps  *goullm.Capabilities
+}
+
+func (f *fakeLLMConnector) GetAuthMode() goullm.AuthMode { return goullm.AuthBearer }
+func (f *fakeLLMConnector) GetURL() string               { return "" }
+func (f *fakeLLMConnector) GetKey() string               { return "" }
+func (f *fakeLLMConnector) GetModel() string             { return f.model }
+func (f *fakeLLMConnector) GetSupportedParams() map[string]*goullm.ParamSpec {
+	return nil
+}
+func (f *fakeLLMConnector) GetCapabilities() *goullm.Capabilities { return f.caps }
+
+// --- buildModelCapabilityPrompt tests ---
+
+func TestBuildModelCapabilityPrompt_NilConnector(t *testing.T) {
+	req := &types.StreamRequest{Config: &types.SandboxConfig{}}
+	result := buildModelCapabilityPrompt(req)
+	assert.Empty(t, result)
+}
+
+func TestBuildModelCapabilityPrompt_NoRoles_NoSpecialCaps(t *testing.T) {
+	primary := &fakeLLMConnector{
+		fakeConnector: fakeConnector{id: "test", typ: connector.OPENAI, settings: map[string]interface{}{"model": "deepseek-v4-flash"}},
+		model:         "deepseek-v4-flash",
+		caps:          &goullm.Capabilities{ToolCalls: true, Streaming: true},
+	}
+	req := &types.StreamRequest{
+		Config:    &types.SandboxConfig{},
+		Connector: primary,
+	}
+	result := buildModelCapabilityPrompt(req)
+	assert.Empty(t, result, "no roles and no special caps → empty")
+}
+
+func TestBuildModelCapabilityPrompt_WithHeavyAndLight(t *testing.T) {
+	primary := &fakeLLMConnector{
+		fakeConnector: fakeConnector{id: "ds-flash", typ: connector.OPENAI, settings: map[string]interface{}{"model": "deepseek-v4-flash"}},
+		model:         "deepseek-v4-flash",
+		caps:          &goullm.Capabilities{ToolCalls: true},
+	}
+	heavy := &fakeLLMConnector{
+		fakeConnector: fakeConnector{id: "ds-pro", typ: connector.OPENAI, settings: map[string]interface{}{"model": "deepseek-v4-pro"}},
+		model:         "deepseek-v4-pro",
+		caps:          &goullm.Capabilities{Reasoning: true, ToolCalls: true},
+	}
+	light := &fakeLLMConnector{
+		fakeConnector: fakeConnector{id: "ds-lite", typ: connector.OPENAI, settings: map[string]interface{}{"model": "deepseek-v4-flash"}},
+		model:         "deepseek-v4-flash",
+		caps:          &goullm.Capabilities{ToolCalls: true},
+	}
+
+	req := &types.StreamRequest{
+		Config:    &types.SandboxConfig{},
+		Connector: primary,
+		Roles: map[string]connector.Connector{
+			"default": primary,
+			"heavy":   heavy,
+			"light":   light,
+		},
+	}
+	result := buildModelCapabilityPrompt(req)
+	assert.Contains(t, result, "deepseek-v4-flash")
+	assert.Contains(t, result, "deepseek-v4-pro")
+	assert.Contains(t, result, "opus")
+	assert.Contains(t, result, "haiku")
+	assert.Contains(t, result, "thinking")
+	assert.Contains(t, result, "tool_calls")
+	assert.Contains(t, result, "sub-agent")
+}
+
+func TestBuildModelCapabilityPrompt_VisionGuidance(t *testing.T) {
+	primary := &fakeLLMConnector{
+		fakeConnector: fakeConnector{id: "ds-flash", typ: connector.OPENAI, settings: map[string]interface{}{"model": "deepseek-v4-flash"}},
+		model:         "deepseek-v4-flash",
+		caps:          &goullm.Capabilities{ToolCalls: true},
+	}
+	visionConn := &fakeLLMConnector{
+		fakeConnector: fakeConnector{id: "vision", typ: connector.OPENAI, settings: map[string]interface{}{"model": "gpt-4o"}},
+		model:         "gpt-4o",
+		caps:          &goullm.Capabilities{Vision: true, ToolCalls: true},
+	}
+
+	req := &types.StreamRequest{
+		Config:    &types.SandboxConfig{},
+		Connector: primary,
+		Roles: map[string]connector.Connector{
+			"default": primary,
+			"vision":  visionConn,
+		},
+	}
+	result := buildModelCapabilityPrompt(req)
+	assert.Contains(t, result, "image_read")
+	assert.Contains(t, result, "Image/Vision")
+}
+
+func TestBuildModelCapabilityPrompt_PrimaryHasVision_NoGuidance(t *testing.T) {
+	primary := &fakeLLMConnector{
+		fakeConnector: fakeConnector{id: "gpt4o", typ: connector.OPENAI, settings: map[string]interface{}{"model": "gpt-4o"}},
+		model:         "gpt-4o",
+		caps:          &goullm.Capabilities{Vision: true, ToolCalls: true},
+	}
+
+	req := &types.StreamRequest{
+		Config:    &types.SandboxConfig{},
+		Connector: primary,
+		Roles: map[string]connector.Connector{
+			"default": primary,
+			"vision":  primary,
+		},
+	}
+	result := buildModelCapabilityPrompt(req)
+	assert.NotContains(t, result, "image_read", "should not suggest image_read when primary has vision")
+}
+
+func TestBuildModelCapabilityPrompt_ThinkingFromSettings(t *testing.T) {
+	primary := &fakeLLMConnector{
+		fakeConnector: fakeConnector{
+			id:  "ds-pro",
+			typ: connector.OPENAI,
+			settings: map[string]interface{}{
+				"model": "deepseek-v4-pro",
+				"thinking": map[string]interface{}{
+					"type": "enabled",
+				},
+			},
+		},
+		model: "deepseek-v4-pro",
+		caps:  &goullm.Capabilities{ToolCalls: true},
+	}
+	heavy := &fakeLLMConnector{
+		fakeConnector: fakeConnector{id: "ds-pro2", typ: connector.OPENAI, settings: map[string]interface{}{"model": "deepseek-v4-pro-max"}},
+		model:         "deepseek-v4-pro-max",
+		caps:          &goullm.Capabilities{ToolCalls: true},
+	}
+
+	req := &types.StreamRequest{
+		Config:    &types.SandboxConfig{},
+		Connector: primary,
+		Roles: map[string]connector.Connector{
+			"default": primary,
+			"heavy":   heavy,
+		},
+	}
+	result := buildModelCapabilityPrompt(req)
+	assert.Contains(t, result, "thinking", "should detect thinking from Setting()[\"thinking\"]")
 }

agent/sandbox/v2/claude/parse.go

@@ -11,6 +11,7 @@ import (
 
 	"github.com/yaoapp/kun/log"
 	"github.com/yaoapp/yao/agent/output/message"
+	"github.com/yaoapp/yao/agent/sandbox/v2/shared"
 )
 
 // streamParser is an explicit state machine for Claude CLI stream-json output.
@@ -77,8 +78,7 @@ func (p *streamParser) parse(ctx context.Context, stdout io.ReadCloser) error {
 		}
 	}()
 
-	scanner := bufio.NewScanner(stdout)
-	scanner.Buffer(make([]byte, 0, 64*1024), 10*1024*1024)
+	reader := bufio.NewReaderSize(stdout, 64*1024)
 
 	startTime := time.Now()
 	lineCount := 0
@@ -87,9 +87,22 @@ func (p *streamParser) parse(ctx context.Context, stdout io.ReadCloser) error {
 
 	log.Trace("[claude-parse] stream started")
 
-	for scanner.Scan() {
-		line := scanner.Text()
-		if line == "" {
+	for {
+		line, skipped, err := shared.ReadJSONLine(reader)
+		if err == io.EOF {
+			break
+		}
+		if err != nil {
+			if ctx.Err() != nil {
+				return ctx.Err()
+			}
+			return err
+		}
+		if skipped {
+			log.Warn("[claude-parse] skipped oversized JSONL line (>%dMB)", shared.MaxLineSize/1024/1024)
+			continue
+		}
+		if len(line) == 0 {
 			continue
 		}
 		lineCount++
@@ -105,11 +118,11 @@ func (p *streamParser) parse(ctx context.Context, stdout io.ReadCloser) error {
 		}
 
 		var msg map[string]any
-		if err := json.Unmarshal([]byte(line), &msg); err != nil {
+		if err := json.Unmarshal(line, &msg); err != nil {
 			if len(line) > 200 {
-				log.Trace("[claude-parse] JSON unmarshal error: %v (line len=%d, prefix=%q)", err, len(line), line[:200])
+				log.Trace("[claude-parse] JSON unmarshal error: %v (line len=%d, prefix=%q)", err, len(line), string(line[:200]))
 			} else {
-				log.Trace("[claude-parse] JSON unmarshal error: %v (line=%q)", err, line)
+				log.Trace("[claude-parse] JSON unmarshal error: %v (line=%q)", err, string(line))
 			}
 			continue
 		}
@@ -141,16 +154,9 @@ func (p *streamParser) parse(ctx context.Context, stdout io.ReadCloser) error {
 		}
 	}
 
-	log.Trace("[claude-parse] stream ended: lines=%d elapsed=%v completed=%v scanErr=%v",
-		lineCount, time.Since(startTime).Round(time.Second), p.completed, scanner.Err())
+	log.Trace("[claude-parse] stream ended: lines=%d elapsed=%v completed=%v",
+		lineCount, time.Since(startTime).Round(time.Second), p.completed)
 
-	if err := scanner.Err(); err != nil {
-		log.Trace("[claude-parse] scanner error: %v (ctx.Err=%v)", err, ctx.Err())
-		if ctx.Err() != nil {
-			return ctx.Err()
-		}
-		return err
-	}
 	return nil
 }
 

agent/sandbox/v2/claude/runner.go

@@ -8,11 +8,14 @@ import (
 	"time"
 
 	"github.com/yaoapp/gou/connector"
+	goullm "github.com/yaoapp/gou/llm"
 	"github.com/yaoapp/kun/log"
 	agentContext "github.com/yaoapp/yao/agent/context"
 	"github.com/yaoapp/yao/agent/output/message"
+	"github.com/yaoapp/yao/agent/sandbox/v2/shared"
 	"github.com/yaoapp/yao/agent/sandbox/v2/types"
 	infra "github.com/yaoapp/yao/sandbox/v2"
+	"github.com/yaoapp/yao/tools"
 )
 
 // Runner implements the sandbox Runner interface for Claude CLI (mode=cli).
@@ -48,6 +51,18 @@ func (r *Runner) Prepare(ctx context.Context, req *types.PrepareRequest) error {
 
 	steps := append([]types.PrepareStep{}, req.Config.Prepare...)
 
+	if ws := req.Computer.Workplace(); ws != nil {
+		if err := shared.InjectSystemSkills(ws, tools.SkillsFS, ".claude/skills"); err != nil {
+			r.logger.Warn("inject system skills: %v", err)
+		}
+		if err := shared.AppendSystemPrompt(ws, "CLAUDE.md", tools.SystemPrompt); err != nil {
+			r.logger.Warn("append CLAUDE.md: %v", err)
+		}
+		if err := shared.AppendSystemPrompt(ws, "AGENTS.md", tools.SystemPrompt); err != nil {
+			r.logger.Warn("append AGENTS.md: %v", err)
+		}
+	}
+
 	if req.SkillsDir != "" {
 		ws := req.Computer.Workplace()
 		if ws != nil {
@@ -184,11 +199,13 @@ func (r *Runner) Cleanup(ctx context.Context, computer infra.Computer) error {
 }
 
 type a2oConnectorConfig struct {
-	Backend string                         `json:"backend"`
-	Model   string                         `json:"model"`
-	APIKey  string                         `json:"api_key"`
-	Options map[string]interface{}         `json:"options,omitempty"`
-	Routes  map[string]*a2oConnectorConfig `json:"routes,omitempty"`
+	Backend         string                         `json:"backend"`
+	Model           string                         `json:"model"`
+	APIKey          string                         `json:"api_key"`
+	AuthMode        string                         `json:"auth_mode,omitempty"`
+	MaxOutputTokens int                            `json:"max_output_tokens,omitempty"`
+	Options         map[string]interface{}         `json:"options,omitempty"`
+	Routes          map[string]*a2oConnectorConfig `json:"routes,omitempty"`
 }
 
 func buildSingleA2OConfig(conn connector.Connector) *a2oConnectorConfig {
@@ -199,58 +216,66 @@ func buildSingleA2OConfig(conn connector.Connector) *a2oConnectorConfig {
 
 	cfg := &a2oConnectorConfig{}
 
-	if host, ok := settings["host"].(string); ok && host != "" {
-		cfg.Backend = connector.BuildAPIURL(host, "/chat/completions")
-	} else if proxy, ok := settings["proxy"].(string); ok && proxy != "" {
-		cfg.Backend = connector.BuildAPIURL(proxy, "/chat/completions")
-	}
-	if model, ok := settings["model"].(string); ok && model != "" {
-		cfg.Model = model
-	}
-	if key, ok := settings["key"].(string); ok && key != "" {
-		cfg.APIKey = key
-	}
-
-	extra := make(map[string]interface{})
-	for k, v := range settings {
-		switch k {
-		case "host", "model", "key", "proxy", "type":
-			continue
-		default:
-			extra[k] = v
+	// Extract standard fields via LLMConnector methods when available
+	if lc, ok := conn.(goullm.LLMConnector); ok {
+		if url := lc.GetURL(); url != "" {
+			cfg.Backend = connector.BuildAPIURL(url, "/chat/completions")
+		}
+		cfg.Model = lc.GetModel()
+		cfg.APIKey = lc.GetKey()
+		cfg.AuthMode = string(lc.GetAuthMode())
+		if caps := lc.GetCapabilities(); caps != nil && caps.MaxOutputTokens > 0 {
+			cfg.MaxOutputTokens = caps.MaxOutputTokens
+		}
+	} else {
+		if host, ok := settings["host"].(string); ok && host != "" {
+			cfg.Backend = connector.BuildAPIURL(host, "/chat/completions")
+		} else if proxy, ok := settings["proxy"].(string); ok && proxy != "" {
+			cfg.Backend = connector.BuildAPIURL(proxy, "/chat/completions")
+		}
+		if model, ok := settings["model"].(string); ok && model != "" {
+			cfg.Model = model
+		}
+		if key, ok := settings["key"].(string); ok && key != "" {
+			cfg.APIKey = key
 		}
 	}
+
+	// Whitelist-filter remaining settings for the options field
+	extra := connector.FilterRequestBodyParams(settings, conn)
 	if len(extra) > 0 {
 		cfg.Options = extra
 	}
 
+	if cfg.MaxOutputTokens == 0 {
+		cfg.MaxOutputTokens = defaultA2OMaxOutputTokens
+	}
+
 	if cfg.Backend == "" {
 		return nil
 	}
 	return cfg
 }
 
-// resolveAllRoleConnectors resolves all declared role connectors and returns
-// a map of virtual model name -> connector for roles that have independent connectors.
+// resolveAllRoleConnectors maps pre-resolved role connectors from req.Roles
+// to actual model names used as A2O proxy route keys.
 func resolveAllRoleConnectors(req *types.StreamRequest) map[string]connector.Connector {
-	roleConns := getRoleConnectors(req)
-	if len(roleConns) == 0 {
+	if len(req.Roles) == 0 {
 		return nil
 	}
 
 	result := make(map[string]connector.Connector)
-	for role, rm := range claudeRoleEnvMap {
-		if role == "primary" {
-			continue
+	for _, rc := range req.Roles {
+		var model string
+		if lc, ok := rc.(goullm.LLMConnector); ok {
+			model = lc.GetModel()
 		}
-		rc := resolveRoleConnector(role, roleConns, req.UserExplicit, func(id string) connector.Connector {
-			c, _ := connector.Connectors[id]
-			return c
-		})
-		if rc == nil {
-			continue
+		if model == "" {
+			model, _ = rc.Setting()["model"].(string)
+		}
+		if model != "" {
+			result[model] = rc
 		}
-		result[rm.ModelName] = rc
 	}
 	return result
 }

agent/sandbox/v2/claude/session.go

@@ -63,6 +63,10 @@ func (s *session) runStream(handler message.StreamFunc) (completed bool, err err
 
 	s.logger.Debug("runStream: parse returned completed=%v parseErr=%v", parser.completed, parseErr)
 
+	if !parser.completed && parseErr != nil {
+		s.exec.Cancel()
+	}
+
 	if parser.completed {
 		s.logger.Info("claude stream completed normally")
 		return true, nil

agent/sandbox/v2/init.go

@@ -2,6 +2,7 @@ package sandboxv2
 
 import (
 	"github.com/yaoapp/yao/agent/sandbox/v2/claude"
+	"github.com/yaoapp/yao/agent/sandbox/v2/opencode"
 	"github.com/yaoapp/yao/agent/sandbox/v2/types"
 	yaorunner "github.com/yaoapp/yao/agent/sandbox/v2/yao"
 )
@@ -9,5 +10,7 @@ import (
 func init() {
 	Register("claude", func() types.Runner { return claude.New() })
 	Register("claude/cli", func() types.Runner { return claude.New() })
+	Register("opencode", func() types.Runner { return opencode.New() })
+	Register("opencode/cli", func() types.Runner { return opencode.New() })
 	Register("yao", func() types.Runner { return yaorunner.New() })
 }

agent/sandbox/v2/lifecycle.go

@@ -329,8 +329,9 @@ func resolveOwnerID(ctx *agentContext.Context) string {
 }
 
 // pickNodeByFilter selects a random online node that satisfies the given filter
-// and image requirement. If image is non-empty, candidate nodes must have a
-// container runtime (Docker or K8s).
+// and image requirement. If image is non-empty, nodes with a container runtime
+// (Docker or K8s) are preferred; if none are available, host_exec nodes are
+// accepted as fallback (ResolveNodeID will resolve them to host mode).
 func pickNodeByFilter(filter *types.ComputerFilter, image string) (string, error) {
 	reg := registry.Global()
 	if reg == nil {
@@ -339,6 +340,7 @@ func pickNodeByFilter(filter *types.ComputerFilter, image string) (string, error
 
 	nodes := reg.List()
 	var candidates []string
+	var hostExecFallback []string
 	for _, n := range nodes {
 		if n.Status != "online" && n.Status != "" {
 			continue
@@ -372,12 +374,20 @@ func pickNodeByFilter(filter *types.ComputerFilter, image string) (string, error
 		}
 
 		if image != "" && !(n.Capabilities.Docker || n.Capabilities.K8s) {
+			if n.Capabilities.HostExec {
+				hostExecFallback = append(hostExecFallback, n.TaiID)
+			}
 			continue
 		}
 
 		candidates = append(candidates, n.TaiID)
 	}
 
+	if len(candidates) == 0 && len(hostExecFallback) > 0 {
+		log.Trace("[sandbox/v2] pickNodeByFilter: no container node for image %q, falling back to host_exec node", image)
+		candidates = hostExecFallback
+	}
+
 	if len(candidates) == 0 {
 		kind := ""
 		os := ""

agent/sandbox/v2/opencode/command.go

@@ -0,0 +1,378 @@
+package opencode
+
+import (
+	"fmt"
+	"regexp"
+	"strings"
+	"time"
+
+	"github.com/google/uuid"
+	"github.com/yaoapp/gou/connector"
+	goullm "github.com/yaoapp/gou/llm"
+	"github.com/yaoapp/gou/store"
+	"github.com/yaoapp/kun/str"
+	agentContext "github.com/yaoapp/yao/agent/context"
+	"github.com/yaoapp/yao/agent/sandbox/v2/types"
+)
+
+var (
+	yaoSessionNS = uuid.MustParse("e37bc21a-72dd-4a8f-b567-1f02c3d4e590")
+	safeNameRe   = regexp.MustCompile(`[^a-zA-Z0-9_\-.]`)
+)
+
+type command struct {
+	shell   []string
+	env     map[string]string
+	stdin   string
+	workDir string
+}
+
+func chatIDToSessionID(assistantID, chatID string) string {
+	return uuid.NewSHA1(yaoSessionNS, []byte(assistantID+":"+chatID)).String()
+}
+
+func sanitizeSessionName(chatID string) string {
+	return "yao-oc-" + safeNameRe.ReplaceAllString(chatID, "_")
+}
+
+func chatSessionExists(storeKey string) bool {
+	s, err := store.Get("__yao.store")
+	if err != nil {
+		return false
+	}
+	return s.Has(storeKey)
+}
+
+func markChatSession(storeKey, sessionID string, ttl time.Duration) {
+	s, err := store.Get("__yao.store")
+	if err != nil {
+		return
+	}
+	s.Set(storeKey, sessionID, ttl)
+}
+
+func (r *Runner) buildCommand(req *types.StreamRequest, p platform, attachmentPaths []string) command {
+	workDir := req.Computer.GetWorkDir()
+	assistantID := req.AssistantID
+	chatID := req.ChatID
+
+	var isContinuation bool
+	if chatID != "" {
+		storeKey := "opencode-session:" + assistantID + ":" + chatID
+		isContinuation = chatSessionExists(storeKey)
+	}
+
+	env := buildEnv(req, p)
+	args := buildArgs(req, r, isContinuation, chatID)
+
+	stdinMsg := buildStdinMessage(req.Messages, attachmentPaths)
+
+	script := shellQuoteForPlatform(p, "opencode", args...)
+
+	return command{
+		shell:   p.ShellCmd(script),
+		env:     env,
+		stdin:   stdinMsg,
+		workDir: workDir,
+	}
+}
+
+func buildEnv(req *types.StreamRequest, p platform) map[string]string {
+	env := make(map[string]string)
+	workDir := req.Computer.GetWorkDir()
+
+	ws := req.Computer.Workplace()
+	if ws != nil {
+		workspaceID, err := ws.GetID()
+		if err == nil {
+			env["CTX_WORKSPACE_ID"] = workspaceID
+		}
+	}
+
+	for k, v := range p.HomeEnv(workDir) {
+		env[k] = v
+	}
+	env["WORKDIR"] = workDir
+
+	assistantID := req.AssistantID
+	prefix := p.PathJoin(workDir, ".yao", "assistants", assistantID, "opencode")
+	if assistantID == "" {
+		prefix = p.PathJoin(workDir, ".opencode-data")
+	}
+	if assistantID != "" {
+		env["CTX_ASSISTANT_ID"] = assistantID
+		env["CTX_SKILLS_DIR"] = p.PathJoin(workDir, ".yao", "assistants", assistantID, "skills")
+	}
+
+	env["OPENCODE_DATA_DIR"] = p.PathJoin(prefix, "data")
+	env["OPENCODE_CACHE_DIR"] = p.PathJoin(prefix, "cache")
+	env["OPENCODE_STATE_DIR"] = p.PathJoin(prefix, "state")
+	env["OPENCODE_CONFIG_DIR"] = p.PathJoin(prefix, "config")
+
+	env["OPENCODE_DISABLE_AUTOUPDATE"] = "true"
+	env["OPENCODE_DISABLE_MODELS_FETCH"] = "true"
+	env["OPENCODE_DISABLE_LSP_DOWNLOAD"] = "true"
+	env["OPENCODE_DISABLE_DEFAULT_PLUGINS"] = "true"
+	env["OPENCODE_DISABLE_TERMINAL_TITLE"] = "true"
+	env["OPENCODE_DISABLE_MOUSE"] = "true"
+	env["OPENCODE_DISABLE_CLAUDE_CODE"] = "true"
+	env["OPENCODE_CLIENT"] = "cli"
+
+	// Lower bash default timeout from 120s to 30s. Long-running commands
+	// like browsers should be nohup'd; this prevents accidental 2-min hangs.
+	env["OPENCODE_EXPERIMENTAL_BASH_DEFAULT_TIMEOUT_MS"] = "30000"
+
+	primaryConn := resolvePrimaryConnector(req.Connector, req.Roles)
+	if primaryConn != nil {
+		setting := primaryConn.Setting()
+		key, _ := setting["key"].(string)
+		if key != "" {
+			env["YAO_PROVIDER_KEY"] = key
+		}
+
+		if primaryConn.Is(connector.ANTHROPIC) {
+			apiKey, _ := setting["key"].(string)
+			if apiKey != "" {
+				env["ANTHROPIC_API_KEY"] = apiKey
+			}
+		}
+	}
+
+	injectRoleEnvVars(env, req)
+
+	if req.Config != nil && len(req.Config.Secrets) > 0 {
+		for k, v := range req.Config.Secrets {
+			env[k] = str.EnvVar(v)
+		}
+	}
+
+	if req.Token != nil {
+		if req.Token.Token != "" {
+			env["YAO_TOKEN"] = req.Token.Token
+		}
+		if req.Token.RefreshToken != "" {
+			env["YAO_REFRESH_TOKEN"] = req.Token.RefreshToken
+		}
+	}
+
+	return env
+}
+
+func buildArgs(req *types.StreamRequest, r *Runner, isContinuation bool, chatID string) []string {
+	args := []string{"run", "--format", "json"}
+
+	permMode := ""
+	if req.Config != nil && req.Config.Runner.Options != nil {
+		if v, ok := req.Config.Runner.Options["permission_mode"]; ok {
+			permMode = fmt.Sprintf("%v", v)
+		}
+	}
+	if permMode == "bypassPermissions" {
+		args = append(args, "--dangerously-skip-permissions")
+	}
+
+	if chatID != "" && isContinuation {
+		sessionID := chatIDToSessionID(req.AssistantID, chatID)
+		args = append(args, "--continue", "--session", sessionID)
+	}
+
+	primaryConn := resolvePrimaryConnector(req.Connector, req.Roles)
+	if primaryConn != nil {
+		if mid := connectorModelID(primaryConn); mid != "" {
+			args = append(args, "--model", mid)
+		}
+	}
+
+	// User message and attachments are passed via stdin (heredoc pipe),
+	// NOT as positional args. This avoids shell escaping issues with
+	// special characters, CJK text, long messages, and --file ambiguity.
+
+	return args
+}
+
+// buildStdinMessage builds the text piped to `opencode run` via stdin.
+// It combines the user's text message with attachment references so OpenCode
+// receives everything through stdin — no positional args, no --file flags.
+// This mirrors the Claude runner approach and avoids shell escaping pitfalls.
+func buildStdinMessage(messages []agentContext.Message, attachmentPaths []string) string {
+	var parts []string
+
+	if len(attachmentPaths) > 0 {
+		parts = append(parts, "The user has attached the following files — read them to understand context:")
+		for _, p := range attachmentPaths {
+			parts = append(parts, fmt.Sprintf("  - %s", p))
+		}
+		parts = append(parts, "")
+	}
+
+	text := lastUserText(messages)
+	if text != "" {
+		parts = append(parts, text)
+	}
+
+	return strings.Join(parts, "\n")
+}
+
+// lastUserText extracts the plain text from the last user message,
+// handling string, []ContentPart, and []any (generic JSON) content types.
+func lastUserText(messages []agentContext.Message) string {
+	for i := len(messages) - 1; i >= 0; i-- {
+		if messages[i].Role != "user" {
+			continue
+		}
+		switch c := messages[i].Content.(type) {
+		case string:
+			return c
+		case []agentContext.ContentPart:
+			var texts []string
+			for _, part := range c {
+				if part.Type == agentContext.ContentText && part.Text != "" {
+					texts = append(texts, part.Text)
+				}
+			}
+			return strings.Join(texts, "\n")
+		case []any:
+			var texts []string
+			for _, item := range c {
+				if m, ok := item.(map[string]any); ok {
+					if t, _ := m["type"].(string); t == "text" {
+						if text, _ := m["text"].(string); text != "" {
+							texts = append(texts, text)
+						}
+					}
+				}
+			}
+			return strings.Join(texts, "\n")
+		}
+	}
+	return ""
+}
+
+func buildSandboxEnvPrompt(p platform, workDir string) string {
+	osName := p.OS()
+	if osName == "" {
+		osName = "linux"
+	}
+	shell := p.Shell()
+	if shell == "" {
+		shell = "bash"
+	}
+
+	return fmt.Sprintf(`## Sandbox Environment
+
+- **Operating System**: %[2]s
+- **Shell**: %[3]s
+- **Working Directory**: %[1]s
+- **File Access**: You have full read/write access to %[1]s
+`, workDir, osName, shell)
+}
+
+func getProviderPrefix(conn connector.Connector) string {
+	if conn != nil && conn.Is(connector.ANTHROPIC) {
+		return "anthropic"
+	}
+	return "openai"
+}
+
+// shellQuoteForPlatform builds a shell-safe command string. On Windows
+// (PowerShell) it uses single quotes with ” escaping; on POSIX it uses
+// single quotes with '\” escaping.
+func shellQuoteForPlatform(p platform, program string, args ...string) string {
+	if p.OS() == "windows" {
+		return shellQuotePowerShell(program, args...)
+	}
+	return shellQuote(program, args...)
+}
+
+// shellQuote builds a POSIX shell-safe command string from program and args.
+func shellQuote(program string, args ...string) string {
+	parts := make([]string, 0, 1+len(args))
+	parts = append(parts, program)
+	for _, a := range args {
+		if a == "" || strings.ContainsAny(a, " \t\n\"'\\$`!#&|;(){}[]<>?*~") {
+			parts = append(parts, "'"+strings.ReplaceAll(a, "'", `'\''`)+"'")
+		} else {
+			parts = append(parts, a)
+		}
+	}
+	return strings.Join(parts, " ")
+}
+
+// shellQuotePowerShell builds a PowerShell-safe command string. In PowerShell,
+// single-quoted strings escape embedded single quotes by doubling them (”).
+func shellQuotePowerShell(program string, args ...string) string {
+	parts := make([]string, 0, 1+len(args))
+	parts = append(parts, program)
+	for _, a := range args {
+		if a == "" || strings.ContainsAny(a, " \t\n\"'\\$`!#&|;(){}[]<>?*~") {
+			parts = append(parts, "'"+strings.ReplaceAll(a, "'", "''")+"'")
+		} else {
+			parts = append(parts, a)
+		}
+	}
+	return strings.Join(parts, " ")
+}
+
+// connectorModelID returns the "provider/model" string matching the
+// provider ID used in opencode.json (see buildProviderConfig).
+// Uses LLMConnector interface first (consistent with buildProviderConfig).
+func connectorModelID(c connector.Connector) string {
+	host := connectorHost(c)
+	var modelName string
+	if lc, ok := c.(goullm.LLMConnector); ok {
+		modelName = lc.GetModel()
+	}
+	if modelName == "" {
+		modelName, _ = c.Setting()["model"].(string)
+	}
+
+	if c.Is(connector.ANTHROPIC) {
+		return "anthropic/" + modelName
+	}
+	if host == "" || isNativeOpenAI(host) {
+		return "openai/" + modelName
+	}
+	return "custom/" + modelName
+}
+
+// injectRoleEnvVars adds API key, base URL, and model environment variables
+// for each role connector defined in openCodeRoleMap. These env vars are
+// consumed by opencode.json provider blocks (via {env:...} references) and
+// by the custom read.ts tool (for vision API calls).
+func injectRoleEnvVars(env map[string]string, req *types.StreamRequest) {
+	if len(req.Roles) == 0 {
+		return
+	}
+	for role, spec := range openCodeRoleMap {
+		if spec.EnvKeyPrefix == "" {
+			continue
+		}
+		c, ok := req.Roles[role]
+		if !ok || c == nil {
+			continue
+		}
+		setting := c.Setting()
+		if key, _ := setting["key"].(string); key != "" {
+			env[spec.EnvKeyPrefix+"_KEY"] = key
+		}
+		if host, _ := setting["host"].(string); host != "" {
+			env[spec.EnvKeyPrefix+"_BASE_URL"] = normalizeBaseURL(host)
+		}
+		if model, _ := setting["model"].(string); model != "" {
+			env[spec.EnvKeyPrefix+"_MODEL"] = model
+		}
+	}
+}
+
+func connectorHost(c connector.Connector) string {
+	if c == nil {
+		return ""
+	}
+	if lc, ok := c.(goullm.LLMConnector); ok {
+		if u := lc.GetURL(); u != "" {
+			return strings.TrimSpace(u)
+		}
+	}
+	host, _ := c.Setting()["host"].(string)
+	return strings.TrimSpace(host)
+}

agent/sandbox/v2/opencode/command_test.go

@@ -0,0 +1,145 @@
+package opencode
+
+import (
+	"testing"
+
+	agentContext "github.com/yaoapp/yao/agent/context"
+)
+
+func TestChatIDToSessionID(t *testing.T) {
+	id1 := chatIDToSessionID("assistant-1", "chat-1")
+	id2 := chatIDToSessionID("assistant-1", "chat-1")
+	id3 := chatIDToSessionID("assistant-1", "chat-2")
+
+	if id1 != id2 {
+		t.Error("same inputs should produce same session ID")
+	}
+	if id1 == id3 {
+		t.Error("different chatIDs should produce different session IDs")
+	}
+	if id1 == "" {
+		t.Error("session ID should not be empty")
+	}
+}
+
+func TestSanitizeSessionName(t *testing.T) {
+	cases := []struct {
+		input, want string
+	}{
+		{"simple-chat", "yao-oc-simple-chat"},
+		{"chat with spaces", "yao-oc-chat_with_spaces"},
+		{"chat/with/slashes", "yao-oc-chat_with_slashes"},
+		{"chat@special#chars", "yao-oc-chat_special_chars"},
+	}
+	for _, tc := range cases {
+		got := sanitizeSessionName(tc.input)
+		if got != tc.want {
+			t.Errorf("sanitizeSessionName(%q) = %q, want %q", tc.input, got, tc.want)
+		}
+	}
+}
+
+func TestLastUserText(t *testing.T) {
+	cases := []struct {
+		name     string
+		messages []agentContext.Message
+		want     string
+	}{
+		{
+			name:     "empty",
+			messages: nil,
+			want:     "",
+		},
+		{
+			name: "single user message",
+			messages: []agentContext.Message{
+				{Role: "user", Content: "hello"},
+			},
+			want: "hello",
+		},
+		{
+			name: "last user wins",
+			messages: []agentContext.Message{
+				{Role: "user", Content: "first"},
+				{Role: "assistant", Content: "reply"},
+				{Role: "user", Content: "second"},
+			},
+			want: "second",
+		},
+		{
+			name: "no user messages",
+			messages: []agentContext.Message{
+				{Role: "assistant", Content: "only assistant"},
+			},
+			want: "",
+		},
+	}
+
+	for _, tc := range cases {
+		t.Run(tc.name, func(t *testing.T) {
+			got := lastUserText(tc.messages)
+			if got != tc.want {
+				t.Errorf("lastUserText() = %q, want %q", got, tc.want)
+			}
+		})
+	}
+}
+
+func TestBuildStdinMessage(t *testing.T) {
+	msgs := []agentContext.Message{
+		{Role: "user", Content: "把这个会议纪要的关键内容提取出来"},
+	}
+
+	t.Run("no attachments", func(t *testing.T) {
+		got := buildStdinMessage(msgs, nil)
+		if got != "把这个会议纪要的关键内容提取出来" {
+			t.Errorf("unexpected: %q", got)
+		}
+	})
+
+	t.Run("with attachments", func(t *testing.T) {
+		got := buildStdinMessage(msgs, []string{"/workspace/.attachments/abc/test.txt"})
+		if !strContains(got, "/workspace/.attachments/abc/test.txt") {
+			t.Error("should contain attachment path")
+		}
+		if !strContains(got, "把这个会议纪要的关键内容提取出来") {
+			t.Error("should contain user message")
+		}
+	})
+
+	t.Run("empty message", func(t *testing.T) {
+		got := buildStdinMessage(nil, []string{"/workspace/file.txt"})
+		if !strContains(got, "/workspace/file.txt") {
+			t.Error("should contain attachment path even without message")
+		}
+	})
+}
+
+func TestBuildSandboxEnvPrompt(t *testing.T) {
+	p := &posixBase{os: "linux", shell: "bash"}
+	prompt := buildSandboxEnvPrompt(p, "/workspace")
+	if prompt == "" {
+		t.Error("prompt should not be empty")
+	}
+	if !strContains(prompt, "/workspace") {
+		t.Error("prompt should mention workspace path")
+	}
+	if !strContains(prompt, "linux") {
+		t.Error("prompt should mention OS")
+	}
+}
+
+func TestGetProviderPrefix(t *testing.T) {
+	if p := getProviderPrefix(nil); p != "openai" {
+		t.Errorf("nil connector should give openai, got %s", p)
+	}
+}
+
+func strContains(s, sub string) bool {
+	for i := 0; i <= len(s)-len(sub); i++ {
+		if s[i:i+len(sub)] == sub {
+			return true
+		}
+	}
+	return false
+}

agent/sandbox/v2/opencode/config.go

@@ -0,0 +1,379 @@
+package opencode
+
+import (
+	"encoding/json"
+	"strings"
+
+	"github.com/yaoapp/gou/connector"
+	goullm "github.com/yaoapp/gou/llm"
+	"github.com/yaoapp/yao/agent/sandbox/v2/types"
+)
+
+type roleSpec struct {
+	EnvKeyPrefix string
+	TopLevel     string
+}
+
+// openCodeRoleMap lists roles that map to native OpenCode config concepts.
+// "light" → top-level "small_model"; "vision" → env vars only (read.ts hack).
+// "heavy" is handled via resolvePrimaryConnector (becomes the main model).
+var openCodeRoleMap = map[string]roleSpec{
+	"light": {
+		EnvKeyPrefix: "YAO_LIGHT",
+		TopLevel:     "small_model",
+	},
+	"vision": {
+		EnvKeyPrefix: "YAO_VISION",
+	},
+}
+
+// resolvePrimaryConnector returns the heavy role connector if present in the
+// pre-resolved roles map, otherwise falls back to the caller-supplied primary.
+func resolvePrimaryConnector(primary connector.Connector, roles map[string]connector.Connector) connector.Connector {
+	if c, ok := roles["heavy"]; ok && c != nil {
+		return c
+	}
+	return primary
+}
+
+// buildOpenCodeConfig generates the opencode.json project configuration.
+// All provider configuration is direct (no a2o proxy).
+func buildOpenCodeConfig(req *types.PrepareRequest, mcpServers []types.MCPServer) []byte {
+	cfg := map[string]any{
+		"$schema":    "https://opencode.ai/config.json",
+		"autoupdate": false,
+		"snapshot":   false,
+		"share":      "disabled",
+		"watcher":    map[string]any{"ignore": []string{".yao/**", ".attachments/**"}},
+		"permission": map[string]any{"*": "allow"},
+	}
+
+	primaryConn := resolvePrimaryConnector(req.Connector, req.Roles)
+	if primaryConn != nil {
+		providerID, providerCfg, modelStr := buildProviderConfig(primaryConn)
+		cfg["provider"] = map[string]any{providerID: providerCfg}
+		cfg["model"] = modelStr
+		cfg["enabled_providers"] = []string{providerID}
+	}
+
+	injectRoleProviders(cfg, req, primaryConn)
+
+	if len(mcpServers) > 0 {
+		cfg["mcp"] = buildMCPConfig(mcpServers)
+	}
+
+	prefix := ".yao/assistants/" + req.AssistantID
+	if req.AssistantID == "" {
+		prefix = ".opencode"
+	}
+	cfg["instructions"] = []string{prefix + "/system-prompt.md"}
+
+	data, _ := json.MarshalIndent(cfg, "", "  ")
+	return data
+}
+
+// buildProviderConfig maps a Yao connector to an OpenCode provider configuration.
+// Anthropic connectors map directly; OpenAI/OpenAI-compatible map to "openai".
+//
+// OpenCode appends its own endpoint paths (e.g. /responses) to baseURL,
+// so we must NOT include /chat/completions. For native OpenAI (api.openai.com)
+// we omit baseURL entirely and let OpenCode use its built-in default.
+// For custom hosts (OpenAI-compatible proxies), we pass the bare host URL.
+func buildProviderConfig(conn connector.Connector) (providerID string, cfg map[string]any, model string) {
+	setting := conn.Setting()
+
+	var host, modelName string
+	if lc, ok := conn.(goullm.LLMConnector); ok {
+		host = lc.GetURL()
+		modelName = lc.GetModel()
+	}
+	if host == "" {
+		host, _ = setting["host"].(string)
+	}
+	if modelName == "" {
+		modelName, _ = setting["model"].(string)
+	}
+
+	opts := map[string]any{
+		"apiKey": "{env:YAO_PROVIDER_KEY}",
+	}
+
+	if conn.Is(connector.ANTHROPIC) {
+		if host != "" {
+			opts["baseURL"] = host
+		}
+		return "anthropic", map[string]any{"options": opts}, "anthropic/" + modelName
+	}
+
+	// Native OpenAI (api.openai.com): use built-in "openai" provider which
+	// already knows all official models — no models declaration needed.
+	if host == "" || isNativeOpenAI(host) {
+		return "openai", map[string]any{"options": opts}, "openai/" + modelName
+	}
+
+	// OpenAI-compatible provider (DeepSeek, Moonshot, etc.): must use
+	// @ai-sdk/openai-compatible and explicitly declare models, otherwise
+	// OpenCode throws ProviderModelNotFoundError.
+	opts["baseURL"] = normalizeBaseURL(host)
+
+	modelCfg := map[string]any{
+		"name": modelName,
+	}
+
+	// DeepSeek (and similar) thinking models return reasoning_content in
+	// assistant messages. OpenCode must be told to preserve and replay
+	// this field on conversation continuation, otherwise the API returns:
+	//   "The reasoning_content in the thinking mode must be passed back to the API."
+	// Adding "interleaved" is safe for non-thinking models (no-op if absent).
+	modelCfg["interleaved"] = map[string]any{"field": "reasoning_content"}
+
+	// Forward connector-level request body params (thinking, reasoning, etc.)
+	// to OpenCode model options, using the same FilterRequestBodyParams
+	// mechanism as buildRequestBody in yao/agent/llm.
+	connParams := connector.FilterRequestBodyParams(setting, conn)
+	if len(connParams) > 0 {
+		modelCfg["options"] = connParams
+	}
+
+	if lc, ok := conn.(goullm.LLMConnector); ok {
+		if caps := lc.GetCapabilities(); caps != nil {
+			limit := map[string]any{}
+			if caps.MaxInputTokens > 0 {
+				limit["context"] = caps.MaxInputTokens
+			}
+			if caps.MaxOutputTokens > 0 {
+				limit["output"] = caps.MaxOutputTokens
+			}
+			if len(limit) > 0 {
+				modelCfg["limit"] = limit
+			}
+		}
+	}
+
+	return "custom", map[string]any{
+		"npm":     "@ai-sdk/openai-compatible",
+		"options": opts,
+		"models": map[string]any{
+			modelName: modelCfg,
+		},
+	}, "custom/" + modelName
+}
+
+// isNativeOpenAI returns true if host points to official OpenAI API,
+// where OpenCode already knows the correct base URL.
+func isNativeOpenAI(host string) bool {
+	h := strings.TrimRight(strings.TrimPrefix(strings.TrimPrefix(host, "https://"), "http://"), "/")
+	return h == "api.openai.com" ||
+		strings.HasPrefix(h, "api.openai.com/")
+}
+
+// normalizeBaseURL strips trailing /chat/completions or /v1/chat/completions
+// that Yao connectors may include, because OpenCode appends its own paths.
+func normalizeBaseURL(host string) string {
+	u := strings.TrimRight(host, "/")
+	for _, suffix := range []string{"/chat/completions", "/completions"} {
+		if strings.HasSuffix(u, suffix) {
+			u = strings.TrimSuffix(u, suffix)
+			break
+		}
+	}
+	return strings.TrimRight(u, "/")
+}
+
+// injectRoleProviders iterates openCodeRoleMap and injects provider blocks
+// for every role that has a configured connector. For the "light" role it
+// also sets the top-level "small_model" field. primaryConn is the resolved
+// primary connector (may be heavy or default) used for sameProvider checks.
+func injectRoleProviders(cfg map[string]any, req *types.PrepareRequest, primaryConn connector.Connector) {
+	if len(req.Roles) == 0 {
+		return
+	}
+
+	providers, _ := cfg["provider"].(map[string]any)
+	if providers == nil {
+		providers = map[string]any{}
+		cfg["provider"] = providers
+	}
+
+	enabledSlice, _ := cfg["enabled_providers"].([]string)
+	enabledSet := map[string]bool{}
+	for _, e := range enabledSlice {
+		enabledSet[e] = true
+	}
+
+	primaryHost := ""
+	primaryType := ""
+	if primaryConn != nil {
+		primaryHost = connectorHost(primaryConn)
+		if primaryConn.Is(connector.ANTHROPIC) {
+			primaryType = "anthropic"
+		} else {
+			primaryType = "openai"
+		}
+	}
+
+	for role, spec := range openCodeRoleMap {
+		c, ok := req.Roles[role]
+		if !ok || c == nil {
+			continue
+		}
+
+		setting := c.Setting()
+		modelName, _ := setting["model"].(string)
+		if modelName == "" {
+			continue
+		}
+
+		roleHost := connectorHost(c)
+		roleType := "openai"
+		if c.Is(connector.ANTHROPIC) {
+			roleType = "anthropic"
+		}
+
+		sameProvider := roleType == primaryType && roleHost == primaryHost
+		if sameProvider && primaryHost != "" {
+			sameProvider = true
+		} else if sameProvider && primaryHost == "" && roleHost == "" {
+			sameProvider = true
+		} else if roleHost != primaryHost {
+			sameProvider = false
+		}
+
+		var providerID string
+		var modelRef string
+
+		if sameProvider {
+			providerID = resolveExistingProviderID(providers, primaryType)
+			modelRef = providerID + "/" + modelName
+			mergeModelIntoProvider(providers, providerID, modelName)
+		} else {
+			providerID = role
+			providerCfg := buildRoleProviderConfig(c, spec.EnvKeyPrefix)
+			providers[providerID] = providerCfg
+			modelRef = providerID + "/" + modelName
+		}
+
+		if !enabledSet[providerID] {
+			enabledSlice = append(enabledSlice, providerID)
+			enabledSet[providerID] = true
+		}
+
+		if spec.TopLevel != "" {
+			cfg[spec.TopLevel] = modelRef
+		}
+	}
+
+	cfg["enabled_providers"] = enabledSlice
+}
+
+// resolveExistingProviderID finds the actual provider ID key used in the
+// providers map for a given type. For "openai" type, it could be "openai"
+// or "custom" (for openai-compatible). Returns the type as fallback.
+func resolveExistingProviderID(providers map[string]any, pType string) string {
+	if _, ok := providers[pType]; ok {
+		return pType
+	}
+	if pType == "openai" {
+		if _, ok := providers["custom"]; ok {
+			return "custom"
+		}
+	}
+	return pType
+}
+
+// mergeModelIntoProvider adds a model entry to an existing provider block.
+func mergeModelIntoProvider(providers map[string]any, providerID, modelName string) {
+	block, ok := providers[providerID].(map[string]any)
+	if !ok {
+		return
+	}
+	models, _ := block["models"].(map[string]any)
+	if models == nil {
+		models = map[string]any{}
+		block["models"] = models
+	}
+	models[modelName] = map[string]any{"name": modelName}
+}
+
+// buildRoleProviderConfig creates a provider configuration block for a
+// non-primary role connector. Uses the role's env key prefix for API key
+// and base URL references.
+func buildRoleProviderConfig(conn connector.Connector, envKeyPrefix string) map[string]any {
+	setting := conn.Setting()
+	modelName, _ := setting["model"].(string)
+	host, _ := setting["host"].(string)
+
+	opts := map[string]any{
+		"apiKey": "{env:" + envKeyPrefix + "_KEY}",
+	}
+
+	modelCfg := map[string]any{"name": modelName}
+
+	if lc, ok := conn.(goullm.LLMConnector); ok {
+		if caps := lc.GetCapabilities(); caps != nil {
+			limit := map[string]any{}
+			if caps.MaxInputTokens > 0 {
+				limit["context"] = caps.MaxInputTokens
+			}
+			if caps.MaxOutputTokens > 0 {
+				limit["output"] = caps.MaxOutputTokens
+			}
+			if len(limit) > 0 {
+				modelCfg["limit"] = limit
+			}
+		}
+	}
+
+	if conn.Is(connector.ANTHROPIC) {
+		if host != "" {
+			opts["baseURL"] = host
+		}
+		return map[string]any{
+			"options": opts,
+			"models":  map[string]any{modelName: modelCfg},
+		}
+	}
+
+	if host == "" || isNativeOpenAI(host) {
+		return map[string]any{
+			"options": opts,
+			"models":  map[string]any{modelName: modelCfg},
+		}
+	}
+
+	opts["baseURL"] = normalizeBaseURL(host)
+	modelCfg["interleaved"] = map[string]any{"field": "reasoning_content"}
+
+	return map[string]any{
+		"npm":     "@ai-sdk/openai-compatible",
+		"options": opts,
+		"models":  map[string]any{modelName: modelCfg},
+	}
+}
+
+// buildMCPConfig produces the "mcp" object for opencode.json.
+// OpenCode uses "command" as an array (not command + args like Claude).
+func buildMCPConfig(servers []types.MCPServer) map[string]any {
+	result := make(map[string]any, len(servers))
+	for _, s := range servers {
+		name := s.ServerID
+		if name == "" {
+			continue
+		}
+		result[name] = map[string]any{
+			"type":        "local",
+			"command":     []string{"tai", "mcp", name},
+			"enabled":     true,
+			"environment": map[string]string{"YAO_TOKEN": "{env:YAO_TOKEN}"},
+		}
+	}
+	if len(result) == 0 {
+		result["yao"] = map[string]any{
+			"type":        "local",
+			"command":     []string{"tai", "mcp"},
+			"enabled":     true,
+			"environment": map[string]string{"YAO_TOKEN": "{env:YAO_TOKEN}"},
+		}
+	}
+	return result
+}