Merge branch 'main' into feat/tool-feedback-frontend

README.md

@@ -373,6 +373,9 @@ PicoClaw supports 30+ LLM providers through the `model_list` configuration. Use
 | [Azure OpenAI](https://portal.azure.com/) | `azure/` | Required | Enterprise Azure deployment |
 | [GitHub Copilot](https://github.com/features/copilot) | `github-copilot/` | OAuth | Device code login |
 | [Antigravity](https://console.cloud.google.com/) | `antigravity/` | OAuth | Google Cloud AI |
+| [AWS Bedrock](https://console.aws.amazon.com/bedrock)* | `bedrock/` | AWS credentials | Claude, Llama, Mistral on AWS |
+
+> \* AWS Bedrock requires build tag: `go build -tags bedrock`. Set `api_base` to a region name (e.g., `us-east-1`) for automatic endpoint resolution across all AWS partitions (aws, aws-cn, aws-us-gov). When using a full endpoint URL instead, you must also configure `AWS_REGION` via environment variable or AWS config/profile.
 
 <details>
 <summary><b>Local deployment (Ollama, vLLM, etc.)</b></summary>

docs/configuration.md

@@ -754,6 +754,7 @@ Scheduled tasks persist across restarts and are stored in `~/.picoclaw/workspace
 
 | Topic | Description |
 | ----- | ----------- |
+| [Sensitive Data Filtering](sensitive_data_filtering.md) | Filter API keys and tokens from tool results before sending to LLM |
 | [Hook System](hooks/README.md) | Event-driven hooks: observers, interceptors, approval hooks |
 | [Steering](steering.md) | Inject messages into a running agent loop between tool calls |
 | [SubTurn](subturn.md) | Subagent coordination, concurrency control, lifecycle |

docs/sensitive_data_filtering.md

@@ -0,0 +1,107 @@
+# Sensitive Data Filtering
+
+PicoClaw can filter sensitive values (API keys, tokens, secrets, passwords) from tool call results before they are sent to the LLM. This prevents the LLM from seeing its own credentials, which could otherwise leak through tool output or cause confusing behavior.
+
+---
+
+## Overview
+
+When the LLM uses a tool that returns its own credentials (e.g., a tool that echoes the API key being used), those values are automatically replaced with `[FILTERED]` in the message sent to the LLM.
+
+Sensitive values are collected from [`.security.yml`](./credential_encryption.md) — the centralized storage for all sensitive configuration (API keys, tokens, secrets stored alongside `config.json`). This includes:
+
+- Model API keys
+- Channel tokens (Telegram, Discord, Slack, Matrix, etc.)
+- Web tool API keys (Brave, Tavily, Perplexity, etc.)
+- Skills tokens (GitHub, ClawHub)
+
+---
+
+## Configuration
+
+Sensitive data filtering is configured in the `tools` section of `config.json`:
+
+| Config | Type | Default | Description |
+|--------|------|---------|-------------|
+| `filter_sensitive_data` | bool | `true` | Enable/disable filtering. When `false`, no filtering is performed. |
+| `filter_min_length` | int | `8` | Minimum content length to trigger filtering. Short content is skipped for performance. |
+
+```json
+{
+  "tools": {
+    "filter_sensitive_data": true,
+    "filter_min_length": 8
+  }
+}
+```
+
+### Environment Variable
+
+| Variable | Description |
+|----------|-------------|
+| `PICOCLAW_TOOLS_FILTER_SENSITIVE_DATA` | Set to `true` or `false` to override the config value |
+
+---
+
+## How It Works
+
+1. **On startup**: All sensitive values are collected from `.security.yml` using reflection and compiled into a `strings.Replacer` (O(n+m) performance, computed once).
+
+2. **Per tool result**: Before sending any tool result content to the LLM:
+   - If `filter_sensitive_data` is `false`, content is passed through unchanged
+   - If content length < `filter_min_length`, content is passed through unchanged (fast path)
+   - Otherwise, all sensitive values are replaced with `[FILTERED]`
+
+3. **Replacement**: Uses `strings.Replacer` for efficient O(n+m) string substitution, where n = content length and m = total sensitive value length.
+
+---
+
+## Example
+
+Given the following `.security.yml`:
+
+```yaml
+model_list:
+  my-model:
+    api_keys:
+      - sk-secret-key-12345
+
+channels:
+  telegram:
+    token: "123456:ABC-DEF"
+```
+
+And a tool result containing:
+
+```
+The model is using API key sk-secret-key-12345 and Telegram bot 123456:ABC-DEF
+```
+
+The LLM will receive:
+
+```
+The model is using API key [FILTERED] and Telegram bot [FILTERED]
+```
+
+---
+
+## Performance
+
+- **Fast path**: Content shorter than `filter_min_length` (default 8) is returned unchanged without any string scanning
+- **Efficient replacement**: Uses `strings.Replacer` with O(n+m) complexity instead of regex
+- **Lazy initialization**: The replacement map is built once on first access via `sync.Once`
+
+---
+
+## Security Considerations
+
+- **Credential exposure prevention**: Without filtering, tools that echo credentials could cause the LLM to see its own API keys, potentially leading to confusion or credential leakage in logs
+- **Defense in depth**: Filtering complements (but does not replace) credential encryption — both features should be used together
+- **No false positives**: Only values explicitly stored in `.security.yml` are filtered; the LLM's general knowledge is unaffected
+
+---
+
+## Related
+
+- [Credential Encryption](./credential_encryption.md) — encrypting API keys in config
+- [Tools Configuration](./tools_configuration.md)

docs/tools_configuration.md

@@ -26,6 +26,17 @@ PicoClaw's tools configuration is located in the `tools` field of `config.json`.
 }
 ```
 
+## Sensitive Data Filtering
+
+Before tool results are sent to the LLM, PicoClaw can filter sensitive values (API keys, tokens, secrets) from the output. This prevents the LLM from seeing its own credentials.
+
+See [Sensitive Data Filtering](../sensitive_data_filtering.md) for full documentation.
+
+| Config | Type | Default | Description |
+|--------|------|---------|-------------|
+| `filter_sensitive_data` | bool | `true` | Enable/disable filtering |
+| `filter_min_length` | int | `8` | Minimum content length to trigger filtering |
+
 ## Web Tools
 
 Web tools are used for web search and fetching.

docs/zh/configuration.md

@@ -623,6 +623,7 @@ PicoClaw 通过 `cron` 工具支持 cron 风格的定时任务。Agent 可以设
 
 | 主题 | 说明 |
 | ---- | ---- |
+| [敏感数据过滤](../sensitive_data_filtering.md) | 在发送给 LLM 前，从工具结果中过滤 API 密钥和令牌 |
 | [Hook 系统](../hooks/README.zh.md) | 事件驱动 Hook：观察者、拦截器、审批 Hook |
 | [Steering](../steering.md) | 在工具调用间向运行中的 Agent 注入消息 |
 | [SubTurn](../subturn.md) | 子 Agent 协调、并发控制、生命周期管理 |

docs/zh/sensitive_data_filtering.md

@@ -0,0 +1,107 @@
+# 敏感数据过滤
+
+PicoClaw 可以从工具调用结果中过滤敏感值（API 密钥、令牌、密码等），然后再发送给 LLM。这可以防止 LLM 看到自己的凭据，避免通过工具输出泄露或产生混淆行为。
+
+---
+
+## 概述
+
+当 LLM 使用的工具返回其自身的凭据时（例如，一个回显正在使用的 API 密钥的工具），这些值会自动替换为 `[FILTERED]` 再发送给 LLM。
+
+敏感值从 `.security.yml` 中收集 —— 这是所有敏感配置的集中存储，包括：
+
+- 模型 API 密钥
+- 频道令牌（Telegram、Discord、Slack、Matrix 等）
+- Web 工具 API 密钥（Brave、Tavily、Perplexity 等）
+- 技能令牌（GitHub、ClawHub）
+
+---
+
+## 配置
+
+敏感数据过滤在 `config.json` 的 `tools` 部分配置：
+
+| 配置 | 类型 | 默认值 | 说明 |
+|------|------|--------|------|
+| `filter_sensitive_data` | bool | `true` | 启用/禁用过滤。为 `false` 时，不进行任何过滤。 |
+| `filter_min_length` | int | `8` | 触发过滤的最小内容长度。短内容会被跳过以提高性能。 |
+
+```json
+{
+  "tools": {
+    "filter_sensitive_data": true,
+    "filter_min_length": 8
+  }
+}
+```
+
+### 环境变量
+
+| 变量 | 说明 |
+|------|------|
+| `PICOCLAW_TOOLS_FILTER_SENSITIVE_DATA` | 设置为 `true` 或 `false` 以覆盖配置值 |
+
+---
+
+## 工作原理
+
+1. **启动时**：使用反射从 `.security.yml` 中收集所有敏感值，并编译成 `strings.Replacer`（O(n+m) 性能，仅计算一次）。
+
+2. **每个工具结果**：在将任何工具结果发送给 LLM 之前：
+   - 如果 `filter_sensitive_data` 为 `false`，内容原样传递
+   - 如果内容长度 < `filter_min_length`，内容原样传递（快速路径）
+   - 否则，所有敏感值都会被替换为 `[FILTERED]`
+
+3. **替换**：使用 `strings.Replacer` 进行高效的 O(n+m) 字符串替换，其中 n = 内容长度，m = 敏感值总长度。
+
+---
+
+## 示例
+
+给定以下 `.security.yml`：
+
+```yaml
+model_list:
+  my-model:
+    api_keys:
+      - sk-secret-key-12345
+
+channels:
+  telegram:
+    token: "123456:ABC-DEF"
+```
+
+以及包含以下内容的工具结果：
+
+```
+The model is using API key sk-secret-key-12345 and Telegram bot 123456:ABC-DEF
+```
+
+LLM 将收到：
+
+```
+The model is using API key [FILTERED] and Telegram bot [FILTERED]
+```
+
+---
+
+## 性能
+
+- **快速路径**：短于 `filter_min_length`（默认 8）的内容会直接返回，不进行任何字符串扫描
+- **高效替换**：使用 `strings.Replacer`，复杂度为 O(n+m)，而非正则表达式
+- **延迟初始化**：替换映射通过 `sync.Once` 在首次访问时构建一次
+
+---
+
+## 安全注意事项
+
+- **凭据泄露防护**：如果没有过滤，返回凭据的工具可能导致 LLM 看到自己的 API 密钥，可能导致日志中泄露凭据或产生混淆
+- **纵深防御**：过滤是对凭据加密的补充（而非替代）—— 应同时使用这两个功能
+- **无误报**：只有明确存储在 `.security.yml` 中的值才会被过滤；LLM 的通用知识不受影响
+
+---
+
+## 相关文档
+
+- [凭据加密](../credential_encryption.md) — 配置中 API 密钥的加密
+- [工具配置](../tools_configuration.md)

docs/zh/tools_configuration.md

@@ -28,6 +28,17 @@ PicoClaw 的工具配置位于 `config.json` 的 `tools` 字段中。
 }
 ```
 
+## 敏感数据过滤
+
+在将工具结果发送给 LLM 之前，PicoClaw 可以从输出中过滤敏感值（API 密钥、令牌、密码）。这可以防止 LLM 看到自己的凭据。
+
+详细说明请参阅[敏感数据过滤](../sensitive_data_filtering.md)。
+
+| 配置项 | 类型 | 默认值 | 描述 |
+|--------|------|--------|------|
+| `filter_sensitive_data` | bool | `true` | 启用/禁用过滤 |
+| `filter_min_length` | int | `8` | 触发过滤的最小内容长度 |
+
 ## Web 工具
 
 Web 工具用于网页搜索和抓取。

go.mod

@@ -7,6 +7,9 @@ require (
 	github.com/BurntSushi/toml v1.6.0
 	github.com/adhocore/gronx v1.19.6
 	github.com/anthropics/anthropic-sdk-go v1.26.0
+	github.com/aws/aws-sdk-go-v2 v1.41.4
+	github.com/aws/aws-sdk-go-v2/config v1.32.12
+	github.com/aws/aws-sdk-go-v2/service/bedrockruntime v1.50.2
 	github.com/bwmarrin/discordgo v0.29.0
 	github.com/caarlos0/env/v11 v11.4.0
 	github.com/ergochat/irc-go v0.6.0
@@ -40,6 +43,19 @@ require (
 
 require (
 	filippo.io/edwards25519 v1.2.0 // indirect
+	github.com/aws/aws-sdk-go-v2/aws/protocol/eventstream v1.7.7 // indirect
+	github.com/aws/aws-sdk-go-v2/credentials v1.19.12 // indirect
+	github.com/aws/aws-sdk-go-v2/feature/ec2/imds v1.18.20 // indirect
+	github.com/aws/aws-sdk-go-v2/internal/configsources v1.4.20 // indirect
+	github.com/aws/aws-sdk-go-v2/internal/endpoints/v2 v2.7.20 // indirect
+	github.com/aws/aws-sdk-go-v2/internal/ini v1.8.6 // indirect
+	github.com/aws/aws-sdk-go-v2/service/internal/accept-encoding v1.13.7 // indirect
+	github.com/aws/aws-sdk-go-v2/service/internal/presigned-url v1.13.20 // indirect
+	github.com/aws/aws-sdk-go-v2/service/signin v1.0.8 // indirect
+	github.com/aws/aws-sdk-go-v2/service/sso v1.30.13 // indirect
+	github.com/aws/aws-sdk-go-v2/service/ssooidc v1.35.17 // indirect
+	github.com/aws/aws-sdk-go-v2/service/sts v1.41.9 // indirect
+	github.com/aws/smithy-go v1.24.2 // indirect
 	github.com/beeper/argo-go v1.1.2 // indirect
 	github.com/coder/websocket v1.8.14 // indirect
 	github.com/davecgh/go-spew v1.1.1 // indirect

go.sum

@@ -17,6 +17,38 @@ github.com/andybalholm/brotli v1.2.0 h1:ukwgCxwYrmACq68yiUqwIWnGY0cTPox/M94sVwTo
 github.com/andybalholm/brotli v1.2.0/go.mod h1:rzTDkvFWvIrjDXZHkuS16NPggd91W3kUSvPlQ1pLaKY=
 github.com/anthropics/anthropic-sdk-go v1.26.0 h1:oUTzFaUpAevfuELAP1sjL6CQJ9HHAfT7CoSYSac11PY=
 github.com/anthropics/anthropic-sdk-go v1.26.0/go.mod h1:qUKmaW+uuPB64iy1l+4kOSvaLqPXnHTTBKH6RVZ7q5Q=
+github.com/aws/aws-sdk-go-v2 v1.41.4 h1:10f50G7WyU02T56ox1wWXq+zTX9I1zxG46HYuG1hH/k=
+github.com/aws/aws-sdk-go-v2 v1.41.4/go.mod h1:mwsPRE8ceUUpiTgF7QmQIJ7lgsKUPQOUl3o72QBrE1o=
+github.com/aws/aws-sdk-go-v2/aws/protocol/eventstream v1.7.7 h1:3kGOqnh1pPeddVa/E37XNTaWJ8W6vrbYV9lJEkCnhuY=
+github.com/aws/aws-sdk-go-v2/aws/protocol/eventstream v1.7.7/go.mod h1:lyw7GFp3qENLh7kwzf7iMzAxDn+NzjXEAGjKS2UOKqI=
+github.com/aws/aws-sdk-go-v2/config v1.32.12 h1:O3csC7HUGn2895eNrLytOJQdoL2xyJy0iYXhoZ1OmP0=
+github.com/aws/aws-sdk-go-v2/config v1.32.12/go.mod h1:96zTvoOFR4FURjI+/5wY1vc1ABceROO4lWgWJuxgy0g=
+github.com/aws/aws-sdk-go-v2/credentials v1.19.12 h1:oqtA6v+y5fZg//tcTWahyN9PEn5eDU/Wpvc2+kJ4aY8=
+github.com/aws/aws-sdk-go-v2/credentials v1.19.12/go.mod h1:U3R1RtSHx6NB0DvEQFGyf/0sbrpJrluENHdPy1j/3TE=
+github.com/aws/aws-sdk-go-v2/feature/ec2/imds v1.18.20 h1:zOgq3uezl5nznfoK3ODuqbhVg1JzAGDUhXOsU0IDCAo=
+github.com/aws/aws-sdk-go-v2/feature/ec2/imds v1.18.20/go.mod h1:z/MVwUARehy6GAg/yQ1GO2IMl0k++cu1ohP9zo887wE=
+github.com/aws/aws-sdk-go-v2/internal/configsources v1.4.20 h1:CNXO7mvgThFGqOFgbNAP2nol2qAWBOGfqR/7tQlvLmc=
+github.com/aws/aws-sdk-go-v2/internal/configsources v1.4.20/go.mod h1:oydPDJKcfMhgfcgBUZaG+toBbwy8yPWubJXBVERtI4o=
+github.com/aws/aws-sdk-go-v2/internal/endpoints/v2 v2.7.20 h1:tN6W/hg+pkM+tf9XDkWUbDEjGLb+raoBMFsTodcoYKw=
+github.com/aws/aws-sdk-go-v2/internal/endpoints/v2 v2.7.20/go.mod h1:YJ898MhD067hSHA6xYCx5ts/jEd8BSOLtQDL3iZsvbc=
+github.com/aws/aws-sdk-go-v2/internal/ini v1.8.6 h1:qYQ4pzQ2Oz6WpQ8T3HvGHnZydA72MnLuFK9tJwmrbHw=
+github.com/aws/aws-sdk-go-v2/internal/ini v1.8.6/go.mod h1:O3h0IK87yXci+kg6flUKzJnWeziQUKciKrLjcatSNcY=
+github.com/aws/aws-sdk-go-v2/service/bedrockruntime v1.50.2 h1:x0eGAWpd1B5I/vMtrB4Q4Zuc3CXWI8wjHfPPqBSrKmM=
+github.com/aws/aws-sdk-go-v2/service/bedrockruntime v1.50.2/go.mod h1:V9oTWSDC2MtS1DR71hbNET/bZ8psQp022amEBe1grJc=
+github.com/aws/aws-sdk-go-v2/service/internal/accept-encoding v1.13.7 h1:5EniKhLZe4xzL7a+fU3C2tfUN4nWIqlLesfrjkuPFTY=
+github.com/aws/aws-sdk-go-v2/service/internal/accept-encoding v1.13.7/go.mod h1:x0nZssQ3qZSnIcePWLvcoFisRXJzcTVvYpAAdYX8+GI=
+github.com/aws/aws-sdk-go-v2/service/internal/presigned-url v1.13.20 h1:2HvVAIq+YqgGotK6EkMf+KIEqTISmTYh5zLpYyeTo1Y=
+github.com/aws/aws-sdk-go-v2/service/internal/presigned-url v1.13.20/go.mod h1:V4X406Y666khGa8ghKmphma/7C0DAtEQYhkq9z4vpbk=
+github.com/aws/aws-sdk-go-v2/service/signin v1.0.8 h1:0GFOLzEbOyZABS3PhYfBIx2rNBACYcKty+XGkTgw1ow=
+github.com/aws/aws-sdk-go-v2/service/signin v1.0.8/go.mod h1:LXypKvk85AROkKhOG6/YEcHFPoX+prKTowKnVdcaIxE=
+github.com/aws/aws-sdk-go-v2/service/sso v1.30.13 h1:kiIDLZ005EcKomYYITtfsjn7dtOwHDOFy7IbPXKek2o=
+github.com/aws/aws-sdk-go-v2/service/sso v1.30.13/go.mod h1:2h/xGEowcW/g38g06g3KpRWDlT+OTfxxI0o1KqayAB8=
+github.com/aws/aws-sdk-go-v2/service/ssooidc v1.35.17 h1:jzKAXIlhZhJbnYwHbvUQZEB8KfgAEuG0dc08Bkda7NU=
+github.com/aws/aws-sdk-go-v2/service/ssooidc v1.35.17/go.mod h1:Al9fFsXjv4KfbzQHGe6V4NZSZQXecFcvaIF4e70FoRA=
+github.com/aws/aws-sdk-go-v2/service/sts v1.41.9 h1:Cng+OOwCHmFljXIxpEVXAGMnBia8MSU6Ch5i9PgBkcU=
+github.com/aws/aws-sdk-go-v2/service/sts v1.41.9/go.mod h1:LrlIndBDdjA/EeXeyNBle+gyCwTlizzW5ycgWnvIxkk=
+github.com/aws/smithy-go v1.24.2 h1:FzA3bu/nt/vDvmnkg+R8Xl46gmzEDam6mZ1hzmwXFng=
+github.com/aws/smithy-go v1.24.2/go.mod h1:YE2RhdIuDbA5E5bTdciG9KrW3+TiEONeUWCqxX9i1Fc=
 github.com/beeper/argo-go v1.1.2 h1:UQI2G8F+NLfGTOmTUI0254pGKx/HUU/etbUGTJv91Fs=
 github.com/beeper/argo-go v1.1.2/go.mod h1:M+LJAnyowKVQ6Rdj6XYGEn+qcVFkb3R/MUpqkGR0hM4=
 github.com/bwmarrin/discordgo v0.29.0 h1:FmWeXFaKUwrcL3Cx65c20bTRW+vOb6k8AnaP+EgjDno=

pkg/agent/loop.go

@@ -1733,7 +1733,8 @@ turnLoop:
 			select {
 			case result, ok := <-ts.pendingResults:
 				if ok && result != nil && result.ForLLM != "" {
-					msg := providers.Message{Role: "user", Content: fmt.Sprintf("[SubTurn Result] %s", result.ForLLM)}
+					content := al.cfg.FilterSensitiveData(result.ForLLM)
+					msg := providers.Message{Role: "user", Content: fmt.Sprintf("[SubTurn Result] %s", content)}
 					pendingMessages = append(pendingMessages, msg)
 				}
 			default:
@@ -2091,9 +2092,13 @@ turnLoop:
 			}
 		}
 
+		reasoningContent := response.Reasoning
+		if reasoningContent == "" {
+			reasoningContent = response.ReasoningContent
+		}
 		go al.handleReasoning(
 			turnCtx,
-			response.Reasoning,
+			reasoningContent,
 			ts.channel,
 			al.targetReasoningChannelID(ts.channel),
 		)
@@ -2336,6 +2341,9 @@ turnLoop:
 					return
 				}
 
+				// Filter sensitive data before publishing
+				content = al.cfg.FilterSensitiveData(content)
+
 				logger.InfoCF("agent", "Async tool completed, publishing result",
 					map[string]any{
 						"tool":        asyncToolName,
@@ -2451,6 +2459,11 @@ turnLoop:
 				contentForLLM = toolResult.Err.Error()
 			}
 
+			// Filter sensitive data (API keys, tokens, secrets) before sending to LLM
+			if al.cfg.Tools.IsFilterSensitiveDataEnabled() {
+				contentForLLM = al.cfg.FilterSensitiveData(contentForLLM)
+			}
+
 			toolResultMsg := providers.Message{
 				Role:       "tool",
 				Content:    contentForLLM,
@@ -2528,7 +2541,8 @@ turnLoop:
 				select {
 				case result, ok := <-ts.pendingResults:
 					if ok && result != nil && result.ForLLM != "" {
-						msg := providers.Message{Role: "user", Content: fmt.Sprintf("[SubTurn Result] %s", result.ForLLM)}
+						content := al.cfg.FilterSensitiveData(result.ForLLM)
+						msg := providers.Message{Role: "user", Content: fmt.Sprintf("[SubTurn Result] %s", content)}
 						messages = append(messages, msg)
 						ts.agent.Sessions.AddFullMessage(ts.sessionKey, msg)
 					}

pkg/agent/loop_test.go

@@ -554,6 +554,29 @@ func (m *simpleMockProvider) GetDefaultModel() string {
 	return "mock-model"
 }
 
+type reasoningContentProvider struct {
+	response         string
+	reasoningContent string
+}
+
+func (m *reasoningContentProvider) Chat(
+	ctx context.Context,
+	messages []providers.Message,
+	tools []providers.ToolDefinition,
+	model string,
+	opts map[string]any,
+) (*providers.LLMResponse, error) {
+	return &providers.LLMResponse{
+		Content:          m.response,
+		ReasoningContent: m.reasoningContent,
+		ToolCalls:        []providers.ToolCall{},
+	}, nil
+}
+
+func (m *reasoningContentProvider) GetDefaultModel() string {
+	return "reasoning-content-model"
+}
+
 type countingMockProvider struct {
 	response string
 	calls    int
@@ -1688,6 +1711,62 @@ func TestHandleReasoning(t *testing.T) {
 	})
 }
 
+func TestProcessMessage_PublishesReasoningContentToReasoningChannel(t *testing.T) {
+	tmpDir := t.TempDir()
+	cfg := &config.Config{
+		Agents: config.AgentsConfig{
+			Defaults: config.AgentDefaults{
+				Workspace:         tmpDir,
+				Model:             "test-model",
+				MaxTokens:         4096,
+				MaxToolIterations: 10,
+			},
+		},
+	}
+
+	msgBus := bus.NewMessageBus()
+	provider := &reasoningContentProvider{
+		response:         "final answer",
+		reasoningContent: "thinking trace",
+	}
+	al := NewAgentLoop(cfg, msgBus, provider)
+
+	chManager, err := channels.NewManager(&config.Config{}, msgBus, nil)
+	if err != nil {
+		t.Fatalf("Failed to create channel manager: %v", err)
+	}
+	chManager.RegisterChannel("telegram", &fakeChannel{id: "reason-chat"})
+	al.SetChannelManager(chManager)
+
+	response, err := al.processMessage(context.Background(), bus.InboundMessage{
+		Channel:  "telegram",
+		SenderID: "user1",
+		ChatID:   "chat1",
+		Content:  "hello",
+	})
+	if err != nil {
+		t.Fatalf("processMessage() error = %v", err)
+	}
+	if response != "final answer" {
+		t.Fatalf("processMessage() response = %q, want %q", response, "final answer")
+	}
+
+	select {
+	case outbound := <-msgBus.OutboundChan():
+		if outbound.Channel != "telegram" {
+			t.Fatalf("reasoning channel = %q, want %q", outbound.Channel, "telegram")
+		}
+		if outbound.ChatID != "reason-chat" {
+			t.Fatalf("reasoning chatID = %q, want %q", outbound.ChatID, "reason-chat")
+		}
+		if outbound.Content != "thinking trace" {
+			t.Fatalf("reasoning content = %q, want %q", outbound.Content, "thinking trace")
+		}
+	case <-time.After(2 * time.Second):
+		t.Fatal("expected reasoning content to be published to reasoning channel")
+	}
+}
+
 func TestResolveMediaRefs_ResolvesToBase64(t *testing.T) {
 	store := media.NewFileMediaStore()
 	dir := t.TempDir()

pkg/config/config.go

@@ -114,6 +114,25 @@ func (c *Config) WithSecurity(sec *SecurityConfig) *Config {
 	return c
 }
 
+// FilterSensitiveData filters sensitive values from content before sending to LLM.
+// This prevents the LLM from seeing its own credentials.
+// Uses strings.Replacer for O(n+m) performance (computed once per SecurityConfig).
+// Short content (below FilterMinLength) is returned unchanged for performance.
+func (c *Config) FilterSensitiveData(content string) string {
+	if c.security == nil || content == "" {
+		return content
+	}
+	// Check if filtering is enabled (default: true)
+	if !c.Tools.IsFilterSensitiveDataEnabled() {
+		return content
+	}
+	// Fast path: skip filtering for short content
+	if len(content) < c.Tools.GetFilterMinLength() {
+		return content
+	}
+	return c.security.SensitiveDataReplacer().Replace(content)
+}
+
 type HooksConfig struct {
 	Enabled   bool                         `json:"enabled"`
 	Defaults  HookDefaultsConfig           `json:"defaults,omitempty"`
@@ -1201,8 +1220,16 @@ type ReadFileToolConfig struct {
 }
 
 type ToolsConfig struct {
-	AllowReadPaths  []string           `json:"allow_read_paths"  env:"PICOCLAW_TOOLS_ALLOW_READ_PATHS"`
+	AllowReadPaths  []string `json:"allow_read_paths"  env:"PICOCLAW_TOOLS_ALLOW_READ_PATHS"`
-	AllowWritePaths []string           `json:"allow_write_paths" env:"PICOCLAW_TOOLS_ALLOW_WRITE_PATHS"`
+	AllowWritePaths []string `json:"allow_write_paths" env:"PICOCLAW_TOOLS_ALLOW_WRITE_PATHS"`
+	// FilterSensitiveData controls whether to filter sensitive values (API keys,
+	// tokens, secrets) from tool results before sending to the LLM.
+	// Default: true (enabled)
+	FilterSensitiveData bool `json:"filter_sensitive_data" env:"PICOCLAW_TOOLS_FILTER_SENSITIVE_DATA"`
+	// FilterMinLength is the minimum content length required for filtering.
+	// Content shorter than this will be returned unchanged for performance.
+	// Default: 8
+	FilterMinLength int                `json:"filter_min_length" env:"PICOCLAW_TOOLS_FILTER_MIN_LENGTH"`
 	Web             WebToolsConfig     `json:"web"`
 	Cron            CronToolsConfig    `json:"cron"`
 	Exec            ExecConfig         `json:"exec"`
@@ -1226,6 +1253,19 @@ type ToolsConfig struct {
 	WriteFile       ToolConfig         `json:"write_file"                                               envPrefix:"PICOCLAW_TOOLS_WRITE_FILE_"`
 }
 
+// IsFilterSensitiveDataEnabled returns true if sensitive data filtering is enabled
+func (c *ToolsConfig) IsFilterSensitiveDataEnabled() bool {
+	return c.FilterSensitiveData
+}
+
+// GetFilterMinLength returns the minimum content length for filtering (default: 8)
+func (c *ToolsConfig) GetFilterMinLength() int {
+	if c.FilterMinLength <= 0 {
+		return 8
+	}
+	return c.FilterMinLength
+}
+
 type SearchCacheConfig struct {
 	MaxSize    int `json:"max_size"    env:"PICOCLAW_SKILLS_SEARCH_CACHE_MAX_SIZE"`
 	TTLSeconds int `json:"ttl_seconds" env:"PICOCLAW_SKILLS_SEARCH_CACHE_TTL_SECONDS"`

pkg/config/config_test.go

@@ -436,6 +436,40 @@ func TestDefaultConfig_ExecAllowRemoteEnabled(t *testing.T) {
 	}
 }
 
+func TestDefaultConfig_FilterSensitiveDataEnabled(t *testing.T) {
+	cfg := DefaultConfig()
+	if !cfg.Tools.FilterSensitiveData {
+		t.Fatal("DefaultConfig().Tools.FilterSensitiveData should be true")
+	}
+}
+
+func TestDefaultConfig_FilterMinLength(t *testing.T) {
+	cfg := DefaultConfig()
+	if cfg.Tools.FilterMinLength != 8 {
+		t.Fatalf("DefaultConfig().Tools.FilterMinLength = %d, want 8", cfg.Tools.FilterMinLength)
+	}
+}
+
+func TestToolsConfig_GetFilterMinLength(t *testing.T) {
+	tests := []struct {
+		name     string
+		minLen   int
+		expected int
+	}{
+		{"zero returns default", 0, 8},
+		{"negative returns default", -1, 8},
+		{"positive returns value", 16, 16},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			cfg := &ToolsConfig{FilterMinLength: tt.minLen}
+			if got := cfg.GetFilterMinLength(); got != tt.expected {
+				t.Errorf("GetFilterMinLength() = %v, want %v", got, tt.expected)
+			}
+		})
+	}
+}
+
 func TestDefaultConfig_CronAllowCommandEnabled(t *testing.T) {
 	cfg := DefaultConfig()
 	if !cfg.Tools.Cron.AllowCommand {
@@ -1252,3 +1286,183 @@ func TestDefaultConfig_MinimaxExtraBody(t *testing.T) {
 		t.Fatalf("Minimax ExtraBody[reasoning_split] = %v, want true", got)
 	}
 }
+
+func TestFilterSensitiveData(t *testing.T) {
+	// Test with nil security config
+	cfg := &Config{}
+	if got := cfg.FilterSensitiveData("hello sk-key123 world"); got != "hello sk-key123 world" {
+		t.Errorf("nil security: got %q, want original", got)
+	}
+
+	// Test with empty content
+	cfg.security = &SecurityConfig{}
+	if got := cfg.FilterSensitiveData(""); got != "" {
+		t.Errorf("empty content: got %q, want empty", got)
+	}
+
+	// Test short content (less than FilterMinLength=8, should skip filtering)
+	cfg.security.ModelList = map[string]ModelSecurityEntry{
+		"test": {APIKeys: []string{"sk-long-key-12345"}},
+	}
+	cfg.Tools.FilterSensitiveData = true
+	cfg.Tools.FilterMinLength = 8
+
+	// Debug: check if sensitive values are collected
+	values := cfg.security.collectSensitiveValues()
+	t.Logf("collected %d sensitive values: %v", len(values), values)
+
+	if got := cfg.FilterSensitiveData("sk-key"); got != "sk-key" {
+		t.Errorf("short content should not be filtered: got %q", got)
+	}
+
+	// Test filtering works
+	content := "Your API key is sk-long-key-12345 and token abc123"
+	// abc123 is not in sensitive values, only sk-long-key-12345 should be filtered
+	expected := "Your API key is [FILTERED] and token abc123"
+	if got := cfg.FilterSensitiveData(content); got != expected {
+		t.Errorf("filtering failed: got %q, want %q", got, expected)
+	}
+
+	// Test disabled filtering
+	cfg.Tools.FilterSensitiveData = false
+	if got := cfg.FilterSensitiveData(content); got != content {
+		t.Errorf("disabled filtering: got %q, want original %q", got, content)
+	}
+}
+
+func TestFilterSensitiveData_MultipleKeys(t *testing.T) {
+	cfg := &Config{
+		Tools: ToolsConfig{
+			FilterSensitiveData: true,
+			FilterMinLength:     8,
+		},
+	}
+	cfg.security = &SecurityConfig{
+		ModelList: map[string]ModelSecurityEntry{
+			"model1": {APIKeys: []string{"key-one", "key-two"}},
+			"model2": {APIKeys: []string{"key-three"}},
+		},
+	}
+
+	content := "key-one and key-two and key-three should be filtered"
+	expected := "[FILTERED] and [FILTERED] and [FILTERED] should be filtered"
+	if got := cfg.FilterSensitiveData(content); got != expected {
+		t.Errorf("multiple keys: got %q, want %q", got, expected)
+	}
+}
+
+func TestFilterSensitiveData_AllTokenTypes(t *testing.T) {
+	cfg := &Config{
+		Tools: ToolsConfig{
+			FilterSensitiveData: true,
+			FilterMinLength:     8,
+		},
+	}
+	cfg.security = &SecurityConfig{
+		// Model API keys
+		ModelList: map[string]ModelSecurityEntry{
+			"test-model": {APIKeys: []string{"sk-model-key-12345"}},
+		},
+		// Channel tokens
+		Channels: ChannelsSecurity{
+			Telegram: &TelegramSecurity{Token: "telegram-bot-token-abcdef"},
+			Discord:  &DiscordSecurity{Token: "discord-bot-token-xyz789"},
+			Slack:    &SlackSecurity{BotToken: "xoxb-slack-bot-token", AppToken: "xapp-slack-app-token"},
+			Matrix:   &MatrixSecurity{AccessToken: "matrix-access-token-abc"},
+			Feishu:   &FeishuSecurity{AppSecret: "feishu-app-secret-123", EncryptKey: "feishu-encrypt-key"},
+			DingTalk: &DingTalkSecurity{ClientSecret: "dingtalk-client-secret"},
+			OneBot:   &OneBotSecurity{AccessToken: "onebot-access-token"},
+			WeCom:    &WeComSecurity{Token: "wecom-token", EncodingAESKey: "wecom-aes-key"},
+			WeComApp: &WeComAppSecurity{CorpSecret: "wecom-app-secret", Token: "wecom-app-token"},
+			Pico:     &PicoSecurity{Token: "pico-token-abc123"},
+			IRC: &IRCSecurity{
+				Password:         "irc-password",
+				NickServPassword: "nickserv-pass",
+				SASLPassword:     "sasl-pass",
+			},
+		},
+		// Web tool API keys
+		Web: WebToolsSecurity{
+			Brave:       &BraveSecurity{APIKeys: []string{"brave-api-key"}},
+			Tavily:      &TavilySecurity{APIKeys: []string{"tavily-api-key"}},
+			Perplexity:  &PerplexitySecurity{APIKeys: []string{"perplexity-api-key"}},
+			GLMSearch:   &GLMSearchSecurity{APIKey: "glm-search-key"},
+			BaiduSearch: &BaiduSearchSecurity{APIKey: "baidu-search-key"},
+		},
+		// Skills tokens
+		Skills: SkillsSecurity{
+			Github:  &GithubSecurity{Token: "github-token-xyz"},
+			ClawHub: &ClawHubSecurity{AuthToken: "clawhub-auth-token"},
+		},
+	}
+
+	tests := []struct {
+		name    string
+		content string
+		want    string
+	}{
+		{
+			name:    "model_api_key",
+			content: "Using model with key sk-model-key-12345",
+			want:    "Using model with key [FILTERED]",
+		},
+		{
+			name:    "telegram_token",
+			content: "Telegram token: telegram-bot-token-abcdef",
+			want:    "Telegram token: [FILTERED]",
+		},
+		{
+			name:    "discord_token",
+			content: "Discord token: discord-bot-token-xyz789",
+			want:    "Discord token: [FILTERED]",
+		},
+		{
+			name:    "slack_tokens",
+			content: "Slack bot: xoxb-slack-bot-token, app: xapp-slack-app-token",
+			want:    "Slack bot: [FILTERED], app: [FILTERED]",
+		},
+		{
+			name:    "matrix_token",
+			content: "Matrix access token: matrix-access-token-abc",
+			want:    "Matrix access token: [FILTERED]",
+		},
+		{
+			name:    "brave_api_key",
+			content: "Brave key: brave-api-key",
+			want:    "Brave key: [FILTERED]",
+		},
+		{
+			name:    "tavily_api_key",
+			content: "Tavily key: tavily-api-key",
+			want:    "Tavily key: [FILTERED]",
+		},
+		{
+			name:    "github_token",
+			content: "GitHub token: github-token-xyz",
+			want:    "GitHub token: [FILTERED]",
+		},
+		{
+			name:    "irc_passwords",
+			content: "IRC password: irc-password, nickserv: nickserv-pass",
+			want:    "IRC password: [FILTERED], nickserv: [FILTERED]",
+		},
+		{
+			name:    "mixed_content",
+			content: "Model key sk-model-key-12345 and Telegram token telegram-bot-token-abcdef",
+			want:    "Model key [FILTERED] and Telegram token [FILTERED]",
+		},
+		{
+			name:    "short_key_not_filtered",
+			content: "Key abc not filtered because length < 8",
+			want:    "Key abc not filtered because length < 8",
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			if got := cfg.FilterSensitiveData(tt.content); got != tt.want {
+				t.Errorf("got %q, want %q", got, tt.want)
+			}
+		})
+	}
+}

pkg/config/defaults.go

@@ -378,6 +378,8 @@ func DefaultConfig() *Config {
 			LogLevel:  "fatal",
 		},
 		Tools: ToolsConfig{
+			FilterSensitiveData: true,
+			FilterMinLength:     8,
 			MediaCleanup: MediaCleanupConfig{
 				ToolConfig: ToolConfig{
 					Enabled: true,

pkg/config/security.go

@@ -10,6 +10,9 @@ import (
 	"fmt"
 	"os"
 	"path/filepath"
+	"reflect"
+	"strings"
+	"sync"
 
 	"github.com/caarlos0/env/v11"
 	"github.com/tencent-connect/botgo/log"
@@ -35,6 +38,9 @@ type SecurityConfig struct {
 
 	Web    WebToolsSecurity `yaml:"web,omitempty"`
 	Skills SkillsSecurity   `yaml:"skills,omitempty"`
+
+	// cache for sensitive values and compiled regex (computed once)
+	sensitiveCache *SensitiveDataCache
 }
 
 // ModelSecurityEntry stores security data for a model
@@ -218,3 +224,91 @@ func saveSecurityConfig(securityPath string, sec *SecurityConfig) error {
 	}
 	return fileutil.WriteFileAtomic(securityPath, buf.Bytes(), 0o600)
 }
+
+// SensitiveDataCache caches the compiled regex for filtering sensitive data.
+// SensitiveDataCache caches the strings.Replacer for filtering sensitive data.
+// Computed once on first access via sync.Once.
+type SensitiveDataCache struct {
+	replacer *strings.Replacer
+	once     sync.Once
+}
+
+// SensitiveDataReplacer returns the strings.Replacer for filtering sensitive data.
+// It is computed once on first access via sync.Once.
+func (sec *SecurityConfig) SensitiveDataReplacer() *strings.Replacer {
+	sec.initSensitiveCache()
+	return sec.sensitiveCache.replacer
+}
+
+// initSensitiveCache initializes the sensitive data cache if not already done.
+func (sec *SecurityConfig) initSensitiveCache() {
+	if sec.sensitiveCache == nil {
+		sec.sensitiveCache = &SensitiveDataCache{}
+	}
+	sec.sensitiveCache.once.Do(func() {
+		values := sec.collectSensitiveValues()
+		if len(values) == 0 {
+			sec.sensitiveCache.replacer = strings.NewReplacer()
+			return
+		}
+
+		// Build old/new pairs for strings.Replacer
+		var pairs []string
+		for _, v := range values {
+			if len(v) > 3 {
+				pairs = append(pairs, v, "[FILTERED]")
+			}
+		}
+		if len(pairs) == 0 {
+			sec.sensitiveCache.replacer = strings.NewReplacer()
+			return
+		}
+		sec.sensitiveCache.replacer = strings.NewReplacer(pairs...)
+	})
+}
+
+// collectSensitiveValues collects all sensitive strings from SecurityConfig using reflection.
+func (sec *SecurityConfig) collectSensitiveValues() []string {
+	var values []string
+	collectSensitive(reflect.ValueOf(sec), &values)
+	return values
+}
+
+// collectSensitive recursively traverses the value and collects all non-empty string fields.
+func collectSensitive(v reflect.Value, values *[]string) {
+	// Dereference pointers/interfaces to get the underlying value
+	for v.Kind() == reflect.Ptr || v.Kind() == reflect.Interface {
+		if v.IsNil() {
+			return
+		}
+		v = v.Elem()
+	}
+
+	switch v.Kind() {
+	case reflect.Struct:
+		for i := 0; i < v.NumField(); i++ {
+			field := v.Field(i)
+			fieldType := v.Type().Field(i)
+			if !fieldType.IsExported() {
+				continue
+			}
+			collectSensitive(field, values)
+		}
+	case reflect.String:
+		if v.String() != "" {
+			*values = append(*values, v.String())
+		}
+	case reflect.Slice:
+		if v.Type().Elem().Kind() == reflect.String {
+			for i := 0; i < v.Len(); i++ {
+				if s := v.Index(i).String(); s != "" {
+					*values = append(*values, s)
+				}
+			}
+		}
+	case reflect.Map:
+		for _, key := range v.MapKeys() {
+			collectSensitive(v.MapIndex(key), values)
+		}
+	}
+}

pkg/logger/panic_win.go

@@ -12,7 +12,7 @@ import (
 )
 
 func initPanicFile(panicFile string) io.WriteCloser {
-	file, err := os.OpenFile(panicFile, os.O_WRONLY|os.O_CREATE|os.O_SYNC|os.O_APPEND, 0600)
+	file, err := os.OpenFile(panicFile, os.O_WRONLY|os.O_CREATE|os.O_SYNC|os.O_APPEND, 0o600)
 	if err != nil {
 		panic(fmt.Sprintf("error in open panic: %v", err))
 	}

pkg/providers/bedrock/provider_bedrock.go

@@ -0,0 +1,580 @@
+//go:build bedrock
+
+// PicoClaw - Ultra-lightweight personal AI agent
+// License: MIT
+//
+// Copyright (c) 2026 PicoClaw contributors
+
+// Package bedrock implements the LLM provider interface for AWS Bedrock.
+// It uses the Bedrock Runtime Converse API for unified access to multiple
+// model families (Claude, Llama, Mistral, etc.) with tool/function calling support.
+package bedrock
+
+import (
+	"context"
+	"encoding/base64"
+	"encoding/json"
+	"fmt"
+	"log"
+	"math"
+	"strings"
+	"time"
+
+	"github.com/aws/aws-sdk-go-v2/aws"
+	"github.com/aws/aws-sdk-go-v2/config"
+	"github.com/aws/aws-sdk-go-v2/service/bedrockruntime"
+	"github.com/aws/aws-sdk-go-v2/service/bedrockruntime/document"
+	"github.com/aws/aws-sdk-go-v2/service/bedrockruntime/types"
+
+	"github.com/sipeed/picoclaw/pkg/providers/common"
+	"github.com/sipeed/picoclaw/pkg/providers/protocoltypes"
+)
+
+type (
+	ToolCall               = protocoltypes.ToolCall
+	FunctionCall           = protocoltypes.FunctionCall
+	LLMResponse            = protocoltypes.LLMResponse
+	UsageInfo              = protocoltypes.UsageInfo
+	Message                = protocoltypes.Message
+	ToolDefinition         = protocoltypes.ToolDefinition
+	ToolFunctionDefinition = protocoltypes.ToolFunctionDefinition
+)
+
+// Provider implements the LLM provider interface for AWS Bedrock.
+type Provider struct {
+	client         *bedrockruntime.Client
+	region         string
+	requestTimeout time.Duration
+}
+
+// Option configures the Bedrock Provider.
+type Option func(*providerConfig)
+
+type providerConfig struct {
+	region         string
+	profile        string
+	baseEndpoint   string
+	requestTimeout time.Duration
+}
+
+// WithRegion sets the AWS region for Bedrock requests.
+func WithRegion(region string) Option {
+	return func(c *providerConfig) {
+		c.region = region
+	}
+}
+
+// WithProfile sets the AWS profile to use for credentials.
+func WithProfile(profile string) Option {
+	return func(c *providerConfig) {
+		c.profile = profile
+	}
+}
+
+// WithBaseEndpoint sets a custom Bedrock endpoint URL.
+// Example: https://bedrock-runtime.us-east-1.amazonaws.com
+func WithBaseEndpoint(endpoint string) Option {
+	return func(c *providerConfig) {
+		c.baseEndpoint = endpoint
+	}
+}
+
+// WithRequestTimeout sets the timeout for Bedrock API requests.
+func WithRequestTimeout(timeout time.Duration) Option {
+	return func(c *providerConfig) {
+		c.requestTimeout = timeout
+	}
+}
+
+// NewProvider creates a new AWS Bedrock provider.
+// It uses the default AWS credential chain (env vars, shared config, IAM roles, etc.).
+func NewProvider(ctx context.Context, opts ...Option) (*Provider, error) {
+	pc := &providerConfig{}
+	for _, opt := range opts {
+		opt(pc)
+	}
+
+	// Build AWS config options
+	var configOpts []func(*config.LoadOptions) error
+
+	if pc.region != "" {
+		configOpts = append(configOpts, config.WithRegion(pc.region))
+	}
+
+	if pc.profile != "" {
+		configOpts = append(configOpts, config.WithSharedConfigProfile(pc.profile))
+	}
+
+	// Load AWS config with automatic credential discovery
+	cfg, err := config.LoadDefaultConfig(ctx, configOpts...)
+	if err != nil {
+		return nil, fmt.Errorf("loading AWS config: %w", err)
+	}
+
+	// Validate region is set - required for Bedrock request signing
+	if cfg.Region == "" {
+		return nil, fmt.Errorf("AWS region not configured: set AWS_REGION, AWS_DEFAULT_REGION, or use WithRegion option")
+	}
+
+	// Build client options
+	var clientOpts []func(*bedrockruntime.Options)
+	if pc.baseEndpoint != "" {
+		clientOpts = append(clientOpts, func(o *bedrockruntime.Options) {
+			o.BaseEndpoint = aws.String(pc.baseEndpoint)
+		})
+	}
+
+	client := bedrockruntime.NewFromConfig(cfg, clientOpts...)
+
+	return &Provider{
+		client:         client,
+		region:         cfg.Region,
+		requestTimeout: pc.requestTimeout,
+	}, nil
+}
+
+// Chat sends messages to AWS Bedrock using the Converse API.
+func (p *Provider) Chat(
+	ctx context.Context,
+	messages []Message,
+	tools []ToolDefinition,
+	model string,
+	options map[string]any,
+) (*LLMResponse, error) {
+	// Apply request timeout if context doesn't already have a deadline.
+	// Use explicit timeout if set, otherwise fall back to common default.
+	effectiveTimeout := p.requestTimeout
+	if effectiveTimeout <= 0 {
+		effectiveTimeout = common.DefaultRequestTimeout
+	}
+	if _, hasDeadline := ctx.Deadline(); !hasDeadline {
+		var cancel context.CancelFunc
+		ctx, cancel = context.WithTimeout(ctx, effectiveTimeout)
+		defer cancel()
+	}
+
+	// Build the Converse API input
+	input := &bedrockruntime.ConverseInput{
+		ModelId: aws.String(model),
+	}
+
+	// Convert messages to Bedrock format
+	bedrockMessages, systemPrompts := convertMessages(messages)
+	input.Messages = bedrockMessages
+
+	// Set system prompts if any
+	if len(systemPrompts) > 0 {
+		input.System = systemPrompts
+	}
+
+	// Set inference configuration only when options are provided
+	var inferenceConfig *types.InferenceConfiguration
+
+	if maxTokens, ok := common.AsInt(options["max_tokens"]); ok && maxTokens > 0 {
+		if inferenceConfig == nil {
+			inferenceConfig = &types.InferenceConfiguration{}
+		}
+		// Clamp to int32 range to avoid overflow
+		if maxTokens > math.MaxInt32 {
+			maxTokens = math.MaxInt32
+		}
+		inferenceConfig.MaxTokens = aws.Int32(int32(maxTokens))
+	}
+
+	if temp, ok := common.AsFloat(options["temperature"]); ok {
+		if inferenceConfig == nil {
+			inferenceConfig = &types.InferenceConfiguration{}
+		}
+		inferenceConfig.Temperature = aws.Float32(float32(temp))
+	}
+
+	if inferenceConfig != nil {
+		input.InferenceConfig = inferenceConfig
+	}
+
+	// Convert tools to Bedrock format
+	// Only set ToolConfig if at least one valid tool was produced
+	if len(tools) > 0 {
+		toolConfig := convertTools(tools)
+		if len(toolConfig.Tools) > 0 {
+			input.ToolConfig = toolConfig
+		}
+	}
+
+	// Call Bedrock Converse API
+	output, err := p.client.Converse(ctx, input)
+	if err != nil {
+		return nil, fmt.Errorf("bedrock converse: %w", err)
+	}
+
+	// Parse the response
+	return parseResponse(output)
+}
+
+// GetDefaultModel returns an empty string as Bedrock models are user-configured.
+func (p *Provider) GetDefaultModel() string {
+	return ""
+}
+
+// Region returns the AWS region configured for this Provider.
+func (p *Provider) Region() string {
+	return p.region
+}
+
+// convertMessages converts internal messages to Bedrock Converse format.
+// Returns the conversation messages and any system prompts separately.
+// Note: Bedrock requires all tool results for a given assistant turn to be in a single
+// user message with multiple ToolResultBlock content blocks. This function merges
+// consecutive tool result messages accordingly.
+func convertMessages(messages []Message) ([]types.Message, []types.SystemContentBlock) {
+	var bedrockMessages []types.Message
+	var systemPrompts []types.SystemContentBlock
+
+	// Helper to check if a message is a tool result
+	isToolResult := func(msg Message) bool {
+		return (msg.Role == "tool" || (msg.Role == "user" && msg.ToolCallID != "")) && msg.ToolCallID != ""
+	}
+
+	// Helper to create a tool result content block
+	makeToolResultBlock := func(msg Message) types.ContentBlock {
+		return &types.ContentBlockMemberToolResult{
+			Value: types.ToolResultBlock{
+				ToolUseId: aws.String(msg.ToolCallID),
+				Content: []types.ToolResultContentBlock{
+					&types.ToolResultContentBlockMemberText{
+						Value: msg.Content,
+					},
+				},
+			},
+		}
+	}
+
+	i := 0
+	for i < len(messages) {
+		msg := messages[i]
+
+		switch {
+		case msg.Role == "system":
+			// System messages go to the System field
+			systemPrompts = append(systemPrompts, &types.SystemContentBlockMemberText{
+				Value: msg.Content,
+			})
+			i++
+
+		case isToolResult(msg):
+			// Collect all consecutive tool results into a single user message
+			// Bedrock requires all tool results for a turn in one message
+			var toolResultBlocks []types.ContentBlock
+			for i < len(messages) && isToolResult(messages[i]) {
+				toolResultBlocks = append(toolResultBlocks, makeToolResultBlock(messages[i]))
+				i++
+			}
+			bedrockMessages = append(bedrockMessages, types.Message{
+				Role:    types.ConversationRoleUser,
+				Content: toolResultBlocks,
+			})
+
+		case msg.Role == "user":
+			// Regular user message (no ToolCallID)
+			content := buildUserContent(msg)
+			bedrockMessages = append(bedrockMessages, types.Message{
+				Role:    types.ConversationRoleUser,
+				Content: content,
+			})
+			i++
+
+		case msg.Role == "assistant":
+			content := buildAssistantContent(msg)
+			bedrockMessages = append(bedrockMessages, types.Message{
+				Role:    types.ConversationRoleAssistant,
+				Content: content,
+			})
+			i++
+
+		case msg.Role == "tool" && msg.ToolCallID == "":
+			// Tool message without ToolCallID - treat as regular user message
+			content := buildUserContent(msg)
+			bedrockMessages = append(bedrockMessages, types.Message{
+				Role:    types.ConversationRoleUser,
+				Content: content,
+			})
+			i++
+
+		default:
+			// Unknown role - skip
+			i++
+		}
+	}
+
+	return bedrockMessages, systemPrompts
+}
+
+// buildUserContent builds Bedrock content blocks for a user message.
+func buildUserContent(msg Message) []types.ContentBlock {
+	var content []types.ContentBlock
+
+	// Add text content
+	if msg.Content != "" {
+		content = append(content, &types.ContentBlockMemberText{
+			Value: msg.Content,
+		})
+	}
+
+	// Add images from Media field
+	for _, mediaURL := range msg.Media {
+		if strings.HasPrefix(mediaURL, "data:image/") {
+			// Parse data URL: data:image/jpeg;base64,<data>
+			parts := strings.SplitN(mediaURL, ",", 2)
+			if len(parts) != 2 {
+				continue
+			}
+
+			// Extract media type from "data:image/jpeg;base64"
+			mediaType := ""
+			header := parts[0]
+			if idx := strings.Index(header, "/"); idx != -1 {
+				end := strings.Index(header[idx:], ";")
+				if end == -1 {
+					end = len(header) - idx
+				}
+				mediaType = header[idx+1 : idx+end]
+			}
+
+			// Verify this is base64 encoded
+			if !strings.Contains(header, ";base64") {
+				continue // Skip non-base64 encoded data
+			}
+
+			// Map media type to Bedrock format
+			var format types.ImageFormat
+			switch mediaType {
+			case "jpeg", "jpg":
+				format = types.ImageFormatJpeg
+			case "png":
+				format = types.ImageFormatPng
+			case "gif":
+				format = types.ImageFormatGif
+			case "webp":
+				format = types.ImageFormatWebp
+			default:
+				continue // Skip unsupported formats
+			}
+
+			// Check size before decoding to prevent excessive memory allocation
+			// Bedrock has a ~20MB request limit; cap decoded images at 10MB
+			const maxImageSize = 10 * 1024 * 1024
+			decodedLen := base64.StdEncoding.DecodedLen(len(parts[1]))
+			if decodedLen > maxImageSize {
+				log.Printf("bedrock: skipping image exceeding size limit (%d bytes > %d)", decodedLen, maxImageSize)
+				continue
+			}
+
+			// Decode base64 data
+			imageData, err := base64.StdEncoding.DecodeString(parts[1])
+			if err != nil {
+				log.Printf("bedrock: failed to decode base64 image data: %v", err)
+				continue
+			}
+
+			content = append(content, &types.ContentBlockMemberImage{
+				Value: types.ImageBlock{
+					Format: format,
+					Source: &types.ImageSourceMemberBytes{
+						Value: imageData,
+					},
+				},
+			})
+		}
+	}
+
+	// Bedrock requires at least one content block; add empty text if needed
+	if len(content) == 0 {
+		content = append(content, &types.ContentBlockMemberText{Value: ""})
+	}
+
+	return content
+}
+
+// buildAssistantContent builds Bedrock content blocks for an assistant message.
+func buildAssistantContent(msg Message) []types.ContentBlock {
+	var content []types.ContentBlock
+
+	// Add text content if present
+	if msg.Content != "" {
+		content = append(content, &types.ContentBlockMemberText{
+			Value: msg.Content,
+		})
+	}
+
+	// Add tool use blocks
+	for _, tc := range msg.ToolCalls {
+		// Validate tool call ID - Bedrock requires non-empty ToolUseId
+		if strings.TrimSpace(tc.ID) == "" {
+			log.Printf("bedrock: skipping tool call with empty ID (name: %q)", tc.Name)
+			continue
+		}
+
+		// Resolve tool name: prefer tc.Name, fallback to tc.Function.Name
+		// (tc.Name/tc.Arguments are json:"-" and may be empty when from JSON)
+		toolName := tc.Name
+		if toolName == "" && tc.Function != nil {
+			toolName = tc.Function.Name
+		}
+		if strings.TrimSpace(toolName) == "" {
+			continue
+		}
+
+		// Resolve arguments: prefer tc.Arguments, fallback to parsing tc.Function.Arguments
+		args := tc.Arguments
+		if args == nil && tc.Function != nil && tc.Function.Arguments != "" {
+			if err := json.Unmarshal([]byte(tc.Function.Arguments), &args); err != nil {
+				log.Printf("bedrock: failed to parse Function.Arguments for tool %q: %v", toolName, err)
+				args = map[string]any{}
+			}
+		}
+		if args == nil {
+			args = map[string]any{}
+		}
+
+		// Convert arguments to a Bedrock document using NewLazyDocument
+		inputDoc := document.NewLazyDocument(args)
+
+		content = append(content, &types.ContentBlockMemberToolUse{
+			Value: types.ToolUseBlock{
+				ToolUseId: aws.String(tc.ID),
+				Name:      aws.String(toolName),
+				Input:     inputDoc,
+			},
+		})
+	}
+
+	// Bedrock requires at least one content block; add empty text if needed
+	if len(content) == 0 {
+		content = append(content, &types.ContentBlockMemberText{Value: ""})
+	}
+
+	return content
+}
+
+// convertTools converts tool definitions to Bedrock format.
+func convertTools(tools []ToolDefinition) *types.ToolConfiguration {
+	bedrockTools := make([]types.Tool, 0, len(tools))
+
+	for _, tool := range tools {
+		// Skip tools with empty names
+		if strings.TrimSpace(tool.Function.Name) == "" {
+			continue
+		}
+
+		// Ensure parameters is not nil - default to minimal object schema
+		params := tool.Function.Parameters
+		if params == nil {
+			params = map[string]any{
+				"type":       "object",
+				"properties": map[string]any{},
+			}
+		}
+
+		// Convert parameters schema to a Bedrock document
+		inputSchema := document.NewLazyDocument(params)
+
+		bedrockTools = append(bedrockTools, &types.ToolMemberToolSpec{
+			Value: types.ToolSpecification{
+				Name:        aws.String(tool.Function.Name),
+				Description: aws.String(tool.Function.Description),
+				InputSchema: &types.ToolInputSchemaMemberJson{
+					Value: inputSchema,
+				},
+			},
+		})
+	}
+
+	return &types.ToolConfiguration{
+		Tools: bedrockTools,
+	}
+}
+
+// parseResponse converts Bedrock Converse output to LLMResponse.
+func parseResponse(output *bedrockruntime.ConverseOutput) (*LLMResponse, error) {
+	var content strings.Builder
+	toolCalls := make([]ToolCall, 0)
+
+	// Process output content blocks
+	if output.Output != nil {
+		if msgOutput, ok := output.Output.(*types.ConverseOutputMemberMessage); ok {
+			for _, block := range msgOutput.Value.Content {
+				switch b := block.(type) {
+				case *types.ContentBlockMemberText:
+					content.WriteString(b.Value)
+
+				case *types.ContentBlockMemberToolUse:
+					// Unmarshal the document interface to a map
+					args := make(map[string]any)
+					if b.Value.Input != nil {
+						if err := b.Value.Input.UnmarshalSmithyDocument(&args); err != nil {
+							log.Printf("bedrock: failed to unmarshal tool input for tool %q (id %q): %v",
+								aws.ToString(b.Value.Name),
+								aws.ToString(b.Value.ToolUseId),
+								err,
+							)
+							args = make(map[string]any)
+						}
+					}
+
+					// Serialize arguments to JSON string for FunctionCall
+					argsJSON, err := json.Marshal(args)
+					if err != nil {
+						log.Printf("bedrock: failed to marshal tool arguments for tool %q (id %q): %v",
+							aws.ToString(b.Value.Name),
+							aws.ToString(b.Value.ToolUseId),
+							err,
+						)
+						argsJSON = []byte("{}")
+					}
+
+					toolCalls = append(toolCalls, ToolCall{
+						ID:        aws.ToString(b.Value.ToolUseId),
+						Name:      aws.ToString(b.Value.Name),
+						Arguments: args,
+						Function: &FunctionCall{
+							Name:      aws.ToString(b.Value.Name),
+							Arguments: string(argsJSON),
+						},
+					})
+				}
+			}
+		}
+	}
+
+	// Map stop reason
+	finishReason := "stop"
+	switch output.StopReason {
+	case types.StopReasonToolUse:
+		finishReason = "tool_calls"
+	case types.StopReasonMaxTokens:
+		finishReason = "length"
+	case types.StopReasonEndTurn:
+		finishReason = "stop"
+	case types.StopReasonStopSequence:
+		finishReason = "stop"
+	case types.StopReasonContentFiltered:
+		finishReason = "content_filter"
+	}
+
+	// Build usage info
+	var usage *UsageInfo
+	if output.Usage != nil {
+		usage = &UsageInfo{
+			PromptTokens:     int(aws.ToInt32(output.Usage.InputTokens)),
+			CompletionTokens: int(aws.ToInt32(output.Usage.OutputTokens)),
+			TotalTokens:      int(aws.ToInt32(output.Usage.InputTokens)) + int(aws.ToInt32(output.Usage.OutputTokens)),
+		}
+	}
+
+	return &LLMResponse{
+		Content:      content.String(),
+		ToolCalls:    toolCalls,
+		FinishReason: finishReason,
+		Usage:        usage,
+	}, nil
+}

pkg/providers/bedrock/provider_bedrock_test.go

@@ -0,0 +1,541 @@
+//go:build bedrock
+
+// PicoClaw - Ultra-lightweight personal AI agent
+// License: MIT
+//
+// Copyright (c) 2026 PicoClaw contributors
+
+package bedrock
+
+import (
+	"testing"
+
+	"github.com/aws/aws-sdk-go-v2/aws"
+	"github.com/aws/aws-sdk-go-v2/service/bedrockruntime"
+	"github.com/aws/aws-sdk-go-v2/service/bedrockruntime/document"
+	"github.com/aws/aws-sdk-go-v2/service/bedrockruntime/types"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+
+	"github.com/sipeed/picoclaw/pkg/providers/protocoltypes"
+)
+
+func TestConvertMessages_SystemPrompts(t *testing.T) {
+	messages := []Message{
+		{Role: "system", Content: "You are a helpful assistant."},
+		{Role: "user", Content: "Hello"},
+	}
+
+	bedrockMsgs, systemPrompts := convertMessages(messages)
+
+	assert.Len(t, systemPrompts, 1)
+	assert.Len(t, bedrockMsgs, 1)
+
+	// Check system prompt
+	textBlock, ok := systemPrompts[0].(*types.SystemContentBlockMemberText)
+	require.True(t, ok)
+	assert.Equal(t, "You are a helpful assistant.", textBlock.Value)
+
+	// Check user message
+	assert.Equal(t, types.ConversationRoleUser, bedrockMsgs[0].Role)
+}
+
+func TestConvertMessages_UserMessage(t *testing.T) {
+	messages := []Message{
+		{Role: "user", Content: "What is 2+2?"},
+	}
+
+	bedrockMsgs, systemPrompts := convertMessages(messages)
+
+	assert.Empty(t, systemPrompts)
+	assert.Len(t, bedrockMsgs, 1)
+	assert.Equal(t, types.ConversationRoleUser, bedrockMsgs[0].Role)
+
+	textBlock, ok := bedrockMsgs[0].Content[0].(*types.ContentBlockMemberText)
+	require.True(t, ok)
+	assert.Equal(t, "What is 2+2?", textBlock.Value)
+}
+
+func TestConvertMessages_AssistantMessage(t *testing.T) {
+	messages := []Message{
+		{Role: "assistant", Content: "The answer is 4."},
+	}
+
+	bedrockMsgs, _ := convertMessages(messages)
+
+	assert.Len(t, bedrockMsgs, 1)
+	assert.Equal(t, types.ConversationRoleAssistant, bedrockMsgs[0].Role)
+
+	textBlock, ok := bedrockMsgs[0].Content[0].(*types.ContentBlockMemberText)
+	require.True(t, ok)
+	assert.Equal(t, "The answer is 4.", textBlock.Value)
+}
+
+func TestConvertMessages_ToolResult(t *testing.T) {
+	messages := []Message{
+		{Role: "tool", Content: "Result from tool", ToolCallID: "call_123"},
+	}
+
+	bedrockMsgs, _ := convertMessages(messages)
+
+	assert.Len(t, bedrockMsgs, 1)
+	assert.Equal(t, types.ConversationRoleUser, bedrockMsgs[0].Role)
+
+	toolResult, ok := bedrockMsgs[0].Content[0].(*types.ContentBlockMemberToolResult)
+	require.True(t, ok)
+	assert.Equal(t, "call_123", aws.ToString(toolResult.Value.ToolUseId))
+}
+
+func TestConvertMessages_MultipleToolResultsMerged(t *testing.T) {
+	// When an assistant makes multiple tool calls, all tool results must be
+	// merged into a single user message for Bedrock
+	messages := []Message{
+		{Role: "user", Content: "What's the weather in NYC and LA?"},
+		{
+			Role:    "assistant",
+			Content: "Let me check both cities.",
+			ToolCalls: []protocoltypes.ToolCall{
+				{ID: "call_nyc", Name: "get_weather", Arguments: map[string]any{"city": "NYC"}},
+				{ID: "call_la", Name: "get_weather", Arguments: map[string]any{"city": "LA"}},
+			},
+		},
+		{Role: "tool", Content: "NYC: 72°F, sunny", ToolCallID: "call_nyc"},
+		{Role: "tool", Content: "LA: 85°F, clear", ToolCallID: "call_la"},
+	}
+
+	bedrockMsgs, _ := convertMessages(messages)
+
+	// Should be: user message, assistant message, merged tool results (single user message)
+	assert.Len(t, bedrockMsgs, 3)
+
+	// First message: user
+	assert.Equal(t, types.ConversationRoleUser, bedrockMsgs[0].Role)
+
+	// Second message: assistant with tool calls
+	assert.Equal(t, types.ConversationRoleAssistant, bedrockMsgs[1].Role)
+
+	// Third message: merged tool results in single user message
+	assert.Equal(t, types.ConversationRoleUser, bedrockMsgs[2].Role)
+	assert.Len(t, bedrockMsgs[2].Content, 2) // Both tool results in one message
+
+	// Verify both tool results are present
+	result1, ok := bedrockMsgs[2].Content[0].(*types.ContentBlockMemberToolResult)
+	require.True(t, ok)
+	assert.Equal(t, "call_nyc", aws.ToString(result1.Value.ToolUseId))
+
+	result2, ok := bedrockMsgs[2].Content[1].(*types.ContentBlockMemberToolResult)
+	require.True(t, ok)
+	assert.Equal(t, "call_la", aws.ToString(result2.Value.ToolUseId))
+}
+
+func TestConvertMessages_AssistantWithToolCalls(t *testing.T) {
+	messages := []Message{
+		{
+			Role:    "assistant",
+			Content: "Let me calculate that.",
+			ToolCalls: []protocoltypes.ToolCall{
+				{
+					ID:        "call_456",
+					Name:      "calculator",
+					Arguments: map[string]any{"expression": "2+2"},
+				},
+			},
+		},
+	}
+
+	bedrockMsgs, _ := convertMessages(messages)
+
+	assert.Len(t, bedrockMsgs, 1)
+	assert.Len(t, bedrockMsgs[0].Content, 2) // text + tool use
+
+	// Check text content
+	textBlock, ok := bedrockMsgs[0].Content[0].(*types.ContentBlockMemberText)
+	require.True(t, ok)
+	assert.Equal(t, "Let me calculate that.", textBlock.Value)
+
+	// Check tool use
+	toolUse, ok := bedrockMsgs[0].Content[1].(*types.ContentBlockMemberToolUse)
+	require.True(t, ok)
+	assert.Equal(t, "call_456", aws.ToString(toolUse.Value.ToolUseId))
+	assert.Equal(t, "calculator", aws.ToString(toolUse.Value.Name))
+}
+
+func TestConvertTools_Basic(t *testing.T) {
+	tools := []ToolDefinition{
+		{
+			Function: protocoltypes.ToolFunctionDefinition{
+				Name:        "get_weather",
+				Description: "Get the current weather",
+				Parameters: map[string]any{
+					"type": "object",
+					"properties": map[string]any{
+						"location": map[string]any{"type": "string"},
+					},
+				},
+			},
+		},
+	}
+
+	toolConfig := convertTools(tools)
+
+	assert.NotNil(t, toolConfig)
+	assert.Len(t, toolConfig.Tools, 1)
+
+	toolSpec, ok := toolConfig.Tools[0].(*types.ToolMemberToolSpec)
+	require.True(t, ok)
+	assert.Equal(t, "get_weather", aws.ToString(toolSpec.Value.Name))
+	assert.Equal(t, "Get the current weather", aws.ToString(toolSpec.Value.Description))
+}
+
+func TestConvertTools_SkipsEmptyName(t *testing.T) {
+	tools := []ToolDefinition{
+		{
+			Function: protocoltypes.ToolFunctionDefinition{
+				Name:        "",
+				Description: "Empty name tool",
+			},
+		},
+		{
+			Function: protocoltypes.ToolFunctionDefinition{
+				Name:        "   ",
+				Description: "Whitespace name tool",
+			},
+		},
+		{
+			Function: protocoltypes.ToolFunctionDefinition{
+				Name:        "valid_tool",
+				Description: "Valid tool",
+			},
+		},
+	}
+
+	toolConfig := convertTools(tools)
+
+	assert.Len(t, toolConfig.Tools, 1)
+	toolSpec := toolConfig.Tools[0].(*types.ToolMemberToolSpec)
+	assert.Equal(t, "valid_tool", aws.ToString(toolSpec.Value.Name))
+}
+
+func TestConvertTools_NilParameters(t *testing.T) {
+	tools := []ToolDefinition{
+		{
+			Function: protocoltypes.ToolFunctionDefinition{
+				Name:        "simple_tool",
+				Description: "A tool with no parameters",
+				Parameters:  nil,
+			},
+		},
+	}
+
+	toolConfig := convertTools(tools)
+
+	assert.Len(t, toolConfig.Tools, 1)
+	// Should not panic and should create a valid tool
+}
+
+func TestBuildUserContent_TextOnly(t *testing.T) {
+	msg := Message{Content: "Hello world"}
+
+	content := buildUserContent(msg)
+
+	assert.Len(t, content, 1)
+	textBlock, ok := content[0].(*types.ContentBlockMemberText)
+	require.True(t, ok)
+	assert.Equal(t, "Hello world", textBlock.Value)
+}
+
+func TestBuildUserContent_WithImage(t *testing.T) {
+	// Base64-encoded 1x1 PNG (the provider doesn't validate image correctness,
+	// it just verifies the format and base64 decoding works)
+	b64Data := "iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAIAAACQd1PeAAAADUlEQVR4nGNgYAAAAAMAASsJTYQAAAAASUVORK5CYII="
+
+	msg := Message{
+		Content: "Look at this image",
+		Media:   []string{"data:image/png;base64," + b64Data},
+	}
+
+	content := buildUserContent(msg)
+
+	assert.Len(t, content, 2)
+
+	// Check text
+	textBlock, ok := content[0].(*types.ContentBlockMemberText)
+	require.True(t, ok)
+	assert.Equal(t, "Look at this image", textBlock.Value)
+
+	// Check image
+	imageBlock, ok := content[1].(*types.ContentBlockMemberImage)
+	require.True(t, ok)
+	assert.Equal(t, types.ImageFormatPng, imageBlock.Value.Format)
+}
+
+func TestBuildUserContent_SkipsInvalidBase64(t *testing.T) {
+	msg := Message{
+		Content: "Invalid image",
+		Media:   []string{"data:image/png;base64,not-valid-base64!!!"},
+	}
+
+	content := buildUserContent(msg)
+
+	// Should only have text, image should be skipped
+	assert.Len(t, content, 1)
+}
+
+func TestBuildUserContent_SkipsNonBase64Data(t *testing.T) {
+	msg := Message{
+		Content: "Non-base64 image",
+		Media:   []string{"data:image/png,raw-data-here"},
+	}
+
+	content := buildUserContent(msg)
+
+	// Should only have text, non-base64 image should be skipped
+	assert.Len(t, content, 1)
+}
+
+func TestBuildAssistantContent_SkipsEmptyToolName(t *testing.T) {
+	msg := Message{
+		Content: "Response",
+		ToolCalls: []protocoltypes.ToolCall{
+			{ID: "1", Name: "", Arguments: map[string]any{}},
+			{ID: "2", Name: "   ", Arguments: map[string]any{}},
+			{ID: "3", Name: "valid", Arguments: map[string]any{}},
+		},
+	}
+
+	content := buildAssistantContent(msg)
+
+	// Should have text + 1 valid tool
+	assert.Len(t, content, 2)
+}
+
+func TestBuildAssistantContent_NilArguments(t *testing.T) {
+	msg := Message{
+		ToolCalls: []protocoltypes.ToolCall{
+			{ID: "1", Name: "tool", Arguments: nil},
+		},
+	}
+
+	content := buildAssistantContent(msg)
+
+	assert.Len(t, content, 1)
+	toolUse, ok := content[0].(*types.ContentBlockMemberToolUse)
+	require.True(t, ok)
+	assert.NotNil(t, toolUse.Value.Input)
+}
+
+func TestBuildAssistantContent_FunctionFallback(t *testing.T) {
+	// When Name/Arguments are empty (json:"-"), should fallback to Function fields
+	msg := Message{
+		ToolCalls: []protocoltypes.ToolCall{
+			{
+				ID:   "1",
+				Name: "", // empty, should fallback to Function.Name
+				Function: &protocoltypes.FunctionCall{
+					Name:      "fallback_tool",
+					Arguments: `{"key":"value"}`,
+				},
+			},
+		},
+	}
+
+	content := buildAssistantContent(msg)
+
+	assert.Len(t, content, 1)
+	toolUse, ok := content[0].(*types.ContentBlockMemberToolUse)
+	require.True(t, ok)
+	assert.Equal(t, "fallback_tool", aws.ToString(toolUse.Value.Name))
+}
+
+func TestParseResponse_TextOnly(t *testing.T) {
+	output := &bedrockruntime.ConverseOutput{
+		Output: &types.ConverseOutputMemberMessage{
+			Value: types.Message{
+				Role: types.ConversationRoleAssistant,
+				Content: []types.ContentBlock{
+					&types.ContentBlockMemberText{Value: "Hello!"},
+				},
+			},
+		},
+		StopReason: types.StopReasonEndTurn,
+		Usage: &types.TokenUsage{
+			InputTokens:  aws.Int32(10),
+			OutputTokens: aws.Int32(5),
+		},
+	}
+
+	resp, err := parseResponse(output)
+
+	require.NoError(t, err)
+	assert.Equal(t, "Hello!", resp.Content)
+	assert.Equal(t, "stop", resp.FinishReason)
+	assert.Empty(t, resp.ToolCalls)
+	assert.Equal(t, 10, resp.Usage.PromptTokens)
+	assert.Equal(t, 5, resp.Usage.CompletionTokens)
+}
+
+func TestParseResponse_StopReasons(t *testing.T) {
+	tests := []struct {
+		stopReason     types.StopReason
+		expectedFinish string
+	}{
+		{types.StopReasonEndTurn, "stop"},
+		{types.StopReasonToolUse, "tool_calls"},
+		{types.StopReasonMaxTokens, "length"},
+		{types.StopReasonStopSequence, "stop"},
+		{types.StopReasonContentFiltered, "content_filter"},
+	}
+
+	for _, tt := range tests {
+		t.Run(string(tt.stopReason), func(t *testing.T) {
+			output := &bedrockruntime.ConverseOutput{
+				Output: &types.ConverseOutputMemberMessage{
+					Value: types.Message{
+						Content: []types.ContentBlock{
+							&types.ContentBlockMemberText{Value: "test"},
+						},
+					},
+				},
+				StopReason: tt.stopReason,
+			}
+
+			resp, err := parseResponse(output)
+
+			require.NoError(t, err)
+			assert.Equal(t, tt.expectedFinish, resp.FinishReason)
+		})
+	}
+}
+
+func TestParseResponse_WithToolCalls(t *testing.T) {
+	// Note: document.NewLazyDocument has limitations with UnmarshalSmithyDocument in tests,
+	// so we test the structure extraction and verify Arguments gets populated (even if empty
+	// due to SDK limitations). The actual unmarshal works correctly at runtime.
+	toolInput := document.NewLazyDocument(map[string]any{
+		"location": "San Francisco",
+		"unit":     "celsius",
+	})
+
+	output := &bedrockruntime.ConverseOutput{
+		Output: &types.ConverseOutputMemberMessage{
+			Value: types.Message{
+				Role: types.ConversationRoleAssistant,
+				Content: []types.ContentBlock{
+					&types.ContentBlockMemberText{Value: "Let me check the weather."},
+					&types.ContentBlockMemberToolUse{
+						Value: types.ToolUseBlock{
+							ToolUseId: aws.String("call_weather_123"),
+							Name:      aws.String("get_weather"),
+							Input:     toolInput,
+						},
+					},
+				},
+			},
+		},
+		StopReason: types.StopReasonToolUse,
+		Usage: &types.TokenUsage{
+			InputTokens:  aws.Int32(20),
+			OutputTokens: aws.Int32(15),
+		},
+	}
+
+	resp, err := parseResponse(output)
+
+	require.NoError(t, err)
+	assert.Equal(t, "Let me check the weather.", resp.Content)
+	assert.Equal(t, "tool_calls", resp.FinishReason)
+	assert.Len(t, resp.ToolCalls, 1)
+
+	// Verify tool call ID and Name are extracted correctly
+	tc := resp.ToolCalls[0]
+	assert.Equal(t, "call_weather_123", tc.ID)
+	assert.Equal(t, "get_weather", tc.Name)
+
+	// Verify Function fields are also populated
+	require.NotNil(t, tc.Function)
+	assert.Equal(t, "get_weather", tc.Function.Name)
+
+	// Verify Arguments is not nil (content may vary due to SDK limitations in tests)
+	assert.NotNil(t, tc.Arguments)
+
+	// Verify usage
+	assert.Equal(t, 20, resp.Usage.PromptTokens)
+	assert.Equal(t, 15, resp.Usage.CompletionTokens)
+	assert.Equal(t, 35, resp.Usage.TotalTokens)
+}
+
+func TestParseResponse_MultipleToolCalls(t *testing.T) {
+	output := &bedrockruntime.ConverseOutput{
+		Output: &types.ConverseOutputMemberMessage{
+			Value: types.Message{
+				Role: types.ConversationRoleAssistant,
+				Content: []types.ContentBlock{
+					&types.ContentBlockMemberToolUse{
+						Value: types.ToolUseBlock{
+							ToolUseId: aws.String("call_1"),
+							Name:      aws.String("tool_a"),
+							Input:     document.NewLazyDocument(map[string]any{"arg": "value1"}),
+						},
+					},
+					&types.ContentBlockMemberToolUse{
+						Value: types.ToolUseBlock{
+							ToolUseId: aws.String("call_2"),
+							Name:      aws.String("tool_b"),
+							Input:     document.NewLazyDocument(map[string]any{"arg": "value2"}),
+						},
+					},
+				},
+			},
+		},
+		StopReason: types.StopReasonToolUse,
+	}
+
+	resp, err := parseResponse(output)
+
+	require.NoError(t, err)
+	assert.Equal(t, "tool_calls", resp.FinishReason)
+	assert.Len(t, resp.ToolCalls, 2)
+
+	// Verify tool call structure
+	assert.Equal(t, "call_1", resp.ToolCalls[0].ID)
+	assert.Equal(t, "tool_a", resp.ToolCalls[0].Name)
+	assert.NotNil(t, resp.ToolCalls[0].Arguments)
+	assert.NotNil(t, resp.ToolCalls[0].Function)
+	assert.Equal(t, "tool_a", resp.ToolCalls[0].Function.Name)
+
+	assert.Equal(t, "call_2", resp.ToolCalls[1].ID)
+	assert.Equal(t, "tool_b", resp.ToolCalls[1].Name)
+	assert.NotNil(t, resp.ToolCalls[1].Arguments)
+	assert.NotNil(t, resp.ToolCalls[1].Function)
+	assert.Equal(t, "tool_b", resp.ToolCalls[1].Function.Name)
+}
+
+func TestParseResponse_ToolCallWithNilInput(t *testing.T) {
+	output := &bedrockruntime.ConverseOutput{
+		Output: &types.ConverseOutputMemberMessage{
+			Value: types.Message{
+				Role: types.ConversationRoleAssistant,
+				Content: []types.ContentBlock{
+					&types.ContentBlockMemberToolUse{
+						Value: types.ToolUseBlock{
+							ToolUseId: aws.String("call_nil"),
+							Name:      aws.String("no_args_tool"),
+							Input:     nil,
+						},
+					},
+				},
+			},
+		},
+		StopReason: types.StopReasonToolUse,
+	}
+
+	resp, err := parseResponse(output)
+
+	require.NoError(t, err)
+	assert.Len(t, resp.ToolCalls, 1)
+	assert.Equal(t, "call_nil", resp.ToolCalls[0].ID)
+	assert.Equal(t, "no_args_tool", resp.ToolCalls[0].Name)
+	// Arguments should be empty map, not nil
+	assert.NotNil(t, resp.ToolCalls[0].Arguments)
+	assert.Empty(t, resp.ToolCalls[0].Arguments)
+}

pkg/providers/bedrock/provider_stub.go

@@ -0,0 +1,73 @@
+//go:build !bedrock
+
+// PicoClaw - Ultra-lightweight personal AI agent
+// License: MIT
+//
+// Copyright (c) 2026 PicoClaw contributors
+
+// Package bedrock provides a stub implementation when built without the bedrock tag.
+// To enable AWS Bedrock support, build with: go build -tags bedrock
+package bedrock
+
+import (
+	"context"
+	"fmt"
+	"time"
+
+	"github.com/sipeed/picoclaw/pkg/providers/protocoltypes"
+)
+
+type (
+	LLMResponse    = protocoltypes.LLMResponse
+	Message        = protocoltypes.Message
+	ToolDefinition = protocoltypes.ToolDefinition
+)
+
+// Provider is a stub that returns an error when Bedrock support is not compiled in.
+type Provider struct{}
+
+// Option is a no-op when Bedrock is not enabled.
+type Option func(*providerConfig)
+
+type providerConfig struct{}
+
+// WithRegion is a no-op when Bedrock is not enabled.
+func WithRegion(region string) Option {
+	return func(c *providerConfig) {}
+}
+
+// WithProfile is a no-op when Bedrock is not enabled.
+func WithProfile(profile string) Option {
+	return func(c *providerConfig) {}
+}
+
+// WithBaseEndpoint is a no-op when Bedrock is not enabled.
+func WithBaseEndpoint(endpoint string) Option {
+	return func(c *providerConfig) {}
+}
+
+// WithRequestTimeout is a no-op when Bedrock is not enabled.
+func WithRequestTimeout(timeout time.Duration) Option {
+	return func(c *providerConfig) {}
+}
+
+// NewProvider returns an error indicating Bedrock support is not compiled in.
+func NewProvider(ctx context.Context, opts ...Option) (*Provider, error) {
+	return nil, fmt.Errorf("bedrock provider not available: build with -tags bedrock to enable AWS Bedrock support")
+}
+
+// Chat returns an error - this should never be called since NewProvider fails.
+func (p *Provider) Chat(
+	ctx context.Context,
+	messages []Message,
+	tools []ToolDefinition,
+	model string,
+	options map[string]any,
+) (*LLMResponse, error) {
+	return nil, fmt.Errorf("bedrock provider not available: build with -tags bedrock to enable AWS Bedrock support")
+}
+
+// GetDefaultModel returns an empty string.
+func (p *Provider) GetDefaultModel() string {
+	return ""
+}

pkg/providers/bedrock/provider_stub_test.go

@@ -0,0 +1,35 @@
+//go:build !bedrock
+
+// PicoClaw - Ultra-lightweight personal AI agent
+// License: MIT
+//
+// Copyright (c) 2026 PicoClaw contributors
+
+package bedrock
+
+import (
+	"context"
+	"strings"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestNewProvider_ReturnsStubError(t *testing.T) {
+	provider, err := NewProvider(context.Background())
+
+	assert.Nil(t, provider)
+	require.Error(t, err)
+	assert.True(t, strings.Contains(err.Error(), "build with -tags bedrock"),
+		"error should mention build tag requirement, got: %s", err.Error())
+}
+
+func TestNewProvider_WithOptions_ReturnsStubError(t *testing.T) {
+	provider, err := NewProvider(context.Background(), WithRegion("us-west-2"), WithProfile("test"))
+
+	assert.Nil(t, provider)
+	require.Error(t, err)
+	assert.True(t, strings.Contains(err.Error(), "build with -tags bedrock"),
+		"error should mention build tag requirement, got: %s", err.Error())
+}

pkg/providers/factory_provider.go

@@ -6,12 +6,15 @@
 package providers
 
 import (
+	"context"
 	"fmt"
 	"strings"
+	"time"
 
 	"github.com/sipeed/picoclaw/pkg/config"
 	anthropicmessages "github.com/sipeed/picoclaw/pkg/providers/anthropic_messages"
 	"github.com/sipeed/picoclaw/pkg/providers/azure"
+	"github.com/sipeed/picoclaw/pkg/providers/bedrock"
 )
 
 // createClaudeAuthProvider creates a Claude provider using OAuth credentials from auth store.
@@ -55,8 +58,9 @@ func ExtractProtocol(model string) (protocol, modelID string) {
 
 // CreateProviderFromConfig creates a provider based on the ModelConfig.
 // It uses the protocol prefix in the Model field to determine which provider to create.
-// Supported protocols: openai, litellm, novita, anthropic, anthropic-messages,
+// Supported protocol families include OpenAI-compatible prefixes (e.g., openai, openrouter, groq, gemini),
-// antigravity, claude-cli, codex-cli, github-copilot
+// Azure OpenAI, Amazon Bedrock, Anthropic (including messages), and various CLI/compatibility shims.
+// See the switch on protocol in this function for the authoritative list.
 // Returns the provider, the model ID (without protocol prefix), and any error.
 func CreateProviderFromConfig(cfg *config.ModelConfig) (LLMProvider, string, error) {
 	if cfg == nil {
@@ -114,6 +118,42 @@ func CreateProviderFromConfig(cfg *config.ModelConfig) (LLMProvider, string, err
 			cfg.RequestTimeout,
 		), modelID, nil
 
+	case "bedrock":
+		// AWS Bedrock uses AWS SDK credentials (env vars, profiles, IAM roles, etc.)
+		// api_base can be:
+		//   - A full endpoint URL: https://bedrock-runtime.us-east-1.amazonaws.com
+		//   - A region name: us-east-1 (AWS SDK resolves endpoint automatically)
+		var opts []bedrock.Option
+		if cfg.APIBase != "" {
+			if !strings.Contains(cfg.APIBase, "://") {
+				// Treat as region: let AWS SDK resolve the correct endpoint
+				// (supports all AWS partitions: aws, aws-cn, aws-us-gov, etc.)
+				opts = append(opts, bedrock.WithRegion(cfg.APIBase))
+			} else {
+				// Full endpoint URL provided (for custom endpoints or testing)
+				opts = append(opts, bedrock.WithBaseEndpoint(cfg.APIBase))
+			}
+		}
+		// Use a separate timeout for AWS config loading (credential resolution can block)
+		initTimeout := 30 * time.Second
+		if cfg.RequestTimeout > 0 {
+			reqTimeout := time.Duration(cfg.RequestTimeout) * time.Second
+			// Set request timeout for API calls
+			opts = append(opts, bedrock.WithRequestTimeout(reqTimeout))
+			// Ensure init timeout is at least as large as request timeout
+			if reqTimeout > initTimeout {
+				initTimeout = reqTimeout
+			}
+		}
+		ctx, cancel := context.WithTimeout(context.Background(), initTimeout)
+		defer cancel()
+		// Note: AWS_PROFILE env var is automatically used by AWS SDK
+		provider, err := bedrock.NewProvider(ctx, opts...)
+		if err != nil {
+			return nil, "", fmt.Errorf("creating bedrock provider: %w", err)
+		}
+		return provider, modelID, nil
+
 	case "litellm", "openrouter", "groq", "zhipu", "gemini", "nvidia",
 		"ollama", "moonshot", "shengsuanyun", "deepseek", "cerebras",
 		"vivgrid", "volcengine", "vllm", "qwen", "qwen-intl", "qwen-international", "dashscope-intl",

pkg/providers/factory_provider_test.go

@@ -700,3 +700,78 @@ func TestCreateProviderFromConfig_MinimaxPreservesUserExtraBody(t *testing.T) {
 		t.Fatalf("custom_field = %v, want test", got)
 	}
 }
+
+func TestCreateProviderFromConfig_Bedrock(t *testing.T) {
+	// Set dummy AWS env vars to make test deterministic
+	t.Setenv("AWS_ACCESS_KEY_ID", "test-key")
+	t.Setenv("AWS_SECRET_ACCESS_KEY", "test-secret")
+	t.Setenv("AWS_EC2_METADATA_DISABLED", "true")
+	// Clear profile-related env vars to avoid loading shared config
+	t.Setenv("AWS_PROFILE", "")
+	t.Setenv("AWS_DEFAULT_PROFILE", "")
+	t.Setenv("AWS_SDK_LOAD_CONFIG", "")
+	t.Setenv("AWS_SHARED_CREDENTIALS_FILE", "")
+
+	cfg := &config.ModelConfig{
+		ModelName: "bedrock-claude",
+		Model:     "bedrock/us.anthropic.claude-sonnet-4-20250514-v1:0",
+		APIBase:   "us-west-2", // Region (also sets AWS region)
+	}
+
+	provider, modelID, err := CreateProviderFromConfig(cfg)
+	if err == nil {
+		// Provider created successfully (built with -tags bedrock)
+		if provider == nil {
+			t.Error("provider is nil on success")
+		}
+		if modelID != "us.anthropic.claude-sonnet-4-20250514-v1:0" {
+			t.Errorf("modelID = %q, want %q", modelID, "us.anthropic.claude-sonnet-4-20250514-v1:0")
+		}
+		return
+	}
+	errMsg := err.Error()
+	// When built without -tags bedrock, expect stub error
+	if strings.Contains(errMsg, "build with -tags bedrock") {
+		return // Expected stub error
+	}
+	// Unexpected error - fail the test
+	t.Errorf("unexpected error from bedrock provider: %v", err)
+}
+
+func TestCreateProviderFromConfig_BedrockWithEndpointURL(t *testing.T) {
+	// Set dummy AWS env vars to make test deterministic
+	t.Setenv("AWS_ACCESS_KEY_ID", "test-key")
+	t.Setenv("AWS_SECRET_ACCESS_KEY", "test-secret")
+	t.Setenv("AWS_REGION", "us-east-1") // Required when using endpoint URL
+	t.Setenv("AWS_EC2_METADATA_DISABLED", "true")
+	// Clear profile-related env vars to avoid loading shared config
+	t.Setenv("AWS_PROFILE", "")
+	t.Setenv("AWS_DEFAULT_PROFILE", "")
+	t.Setenv("AWS_SDK_LOAD_CONFIG", "")
+	t.Setenv("AWS_SHARED_CREDENTIALS_FILE", "")
+
+	cfg := &config.ModelConfig{
+		ModelName: "bedrock-claude",
+		Model:     "bedrock/us.anthropic.claude-sonnet-4-20250514-v1:0",
+		APIBase:   "https://bedrock-runtime.us-east-1.amazonaws.com", // Full endpoint URL
+	}
+
+	provider, modelID, err := CreateProviderFromConfig(cfg)
+	if err == nil {
+		// Provider created successfully (built with -tags bedrock)
+		if provider == nil {
+			t.Error("provider is nil on success")
+		}
+		if modelID != "us.anthropic.claude-sonnet-4-20250514-v1:0" {
+			t.Errorf("modelID = %q, want %q", modelID, "us.anthropic.claude-sonnet-4-20250514-v1:0")
+		}
+		return
+	}
+	errMsg := err.Error()
+	// When built without -tags bedrock, expect stub error
+	if strings.Contains(errMsg, "build with -tags bedrock") {
+		return // Expected stub error
+	}
+	// Unexpected error - fail the test
+	t.Errorf("unexpected error from bedrock provider: %v", err)
+}