feat: remove assistant-mode restriction from android tool and improve app search

- Remove clientType field and assistant-mode gate so the android tool
  works in all modes
- Replace list_apps with search_apps (query-based, searches all packages
  including system apps)
- Enable android tool by default in config
- Add QUERY_ALL_PACKAGES permission for Android 11+ package visibility
- Use ContextualTool interface in updateToolContexts for cleaner typing

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

android/app/src/main/AndroidManifest.xml

@@ -10,6 +10,7 @@
     <uses-permission android:name="android.permission.FOREGROUND_SERVICE_CAMERA" />
     <uses-permission android:name="android.permission.FOREGROUND_SERVICE_MICROPHONE" />
     <uses-permission android:name="android.permission.FOREGROUND_SERVICE_SPECIAL_USE" />
+    <uses-permission android:name="android.permission.QUERY_ALL_PACKAGES" />
 
     <queries>
         <intent>

android/app/src/main/java/io/picoclaw/android/assistant/ToolRequestHandler.kt

@@ -25,7 +25,7 @@ class ToolRequestHandler(
     suspend fun handle(request: ToolRequest): ToolResponse {
         return try {
             when (request.action) {
-                "list_apps" -> handleListApps(request)
+                "search_apps" -> handleSearchApps(request)
                 "app_info" -> handleAppInfo(request)
                 "launch_app" -> handleLaunchApp(request)
                 "current_activity" -> handleCurrentActivity(request)
@@ -63,21 +63,38 @@ class ToolRequestHandler(
         return null
     }
 
-    private fun handleListApps(request: ToolRequest): ToolResponse {
+    private fun handleSearchApps(request: ToolRequest): ToolResponse {
+        val query = request.params?.get("query")?.jsonPrimitive?.contentOrNull
+            ?: return ToolResponse(request.requestId, false, error = "query required")
+
         val pm = context.packageManager
-        val apps = pm.getInstalledApplications(PackageManager.GET_META_DATA)
-            .filter { pm.getLaunchIntentForPackage(it.packageName) != null }
+        val q = query.lowercase()
+        val matches = pm.getInstalledApplications(PackageManager.GET_META_DATA)
+            .filter { app ->
+                val label = pm.getApplicationLabel(app).toString().lowercase()
+                label.contains(q) || app.packageName.lowercase().contains(q)
+            }
             .map { app ->
                 val label = pm.getApplicationLabel(app).toString()
-                "${label} (${app.packageName})"
+                val launchable = pm.getLaunchIntentForPackage(app.packageName) != null
+                val isSystem = app.flags and ApplicationInfo.FLAG_SYSTEM != 0
+                buildString {
+                    append("$label (${app.packageName})")
+                    if (launchable) append(" [launchable]")
+                    if (isSystem) append(" [system]")
+                }
             }
             .sorted()
 
-        return ToolResponse(
-            requestId = request.requestId,
-            success = true,
-            result = "Installed apps (${apps.size}):\n${apps.joinToString("\n")}"
-        )
+        return if (matches.isEmpty()) {
+            ToolResponse(request.requestId, true, result = "No apps found matching \"$query\"")
+        } else {
+            ToolResponse(
+                requestId = request.requestId,
+                success = true,
+                result = "Found ${matches.size} app(s) matching \"$query\":\n${matches.joinToString("\n")}"
+            )
+        }
     }
 
     private fun handleAppInfo(request: ToolRequest): ToolResponse {

pkg/agent/loop.go

@@ -107,7 +107,7 @@ func createToolRegistry(workspace string, restrict bool, cfg *config.Config, msg
 		registry.Register(tools.NewSPITool())
 	}
 
-	// Android device control tool (assistant mode only)
+	// Android device control tool
 	if cfg.Tools.Android.Enabled {
 		androidTool := tools.NewAndroidTool()
 		androidTool.SetSendCallback(func(channel, chatID, content, msgType string) error {
@@ -992,11 +992,8 @@ func (al *AgentLoop) updateToolContexts(channel, chatID string, metadata map[str
 		}
 	}
 	if tool, ok := al.tools.Get("android"); ok {
-		if at, ok := tool.(*tools.AndroidTool); ok {
-			at.SetContext(channel, chatID)
-			if metadata != nil {
-				at.SetClientType(metadata["client_type"])
-			}
+		if ct, ok := tool.(tools.ContextualTool); ok {
+			ct.SetContext(channel, chatID)
 		}
 	}
 }

pkg/config/config.go

@@ -380,7 +380,7 @@ func DefaultConfig() *Config {
 				Enabled: false,
 			},
 			Android: AndroidToolsConfig{
-				Enabled: false,
+				Enabled: true,
 			},
 			Web: WebToolsConfig{
 				Brave: BraveConfig{

pkg/tools/android.go

@@ -32,7 +32,6 @@ type AndroidTool struct {
 	sendCallback SendCallbackWithType
 	channel      string
 	chatID       string
-	clientType   string
 }
 
 func NewAndroidTool() *AndroidTool {
@@ -43,7 +42,7 @@ func (t *AndroidTool) Name() string { return "android" }
 
 func (t *AndroidTool) Description() string {
 	return `Control the Android device. Available actions:
-- list_apps: List installed apps
+- search_apps: Search installed apps by name or package name (requires query)
 - app_info: Get app details (requires package_name)
 - launch_app: Launch an app (requires package_name)
 - current_activity: Get the currently active app/window
@@ -53,8 +52,7 @@ func (t *AndroidTool) Description() string {
 - keyevent: Press a key (requires key: back/home/recents)
 - broadcast: Send a broadcast intent (requires intent_action; optional intent_extras)
 - intent: Start an activity via intent (requires intent_action; optional intent_data, intent_package, intent_type, intent_extras)
-
-Only available in assistant mode.`
+`
 }
 
 func (t *AndroidTool) Parameters() map[string]interface{} {
@@ -64,12 +62,16 @@ func (t *AndroidTool) Parameters() map[string]interface{} {
 			"action": map[string]interface{}{
 				"type": "string",
 				"enum": []string{
-					"list_apps", "app_info", "launch_app", "current_activity",
+					"search_apps", "app_info", "launch_app", "current_activity",
 					"tap", "swipe", "text", "keyevent",
 					"broadcast", "intent",
 				},
 				"description": "The device action to perform",
 			},
+			"query": map[string]interface{}{
+				"type":        "string",
+				"description": "Search query for app name or package name (for search_apps)",
+			},
 			"package_name": map[string]interface{}{
 				"type":        "string",
 				"description": "Android package name (for app_info, launch_app)",
@@ -133,21 +135,11 @@ func (t *AndroidTool) SetContext(channel, chatID string) {
 	t.chatID = chatID
 }
 
-func (t *AndroidTool) SetClientType(clientType string) {
-	t.clientType = clientType
-}
-
 func (t *AndroidTool) SetSendCallback(cb SendCallbackWithType) {
 	t.sendCallback = cb
 }
 
 func (t *AndroidTool) Execute(ctx context.Context, args map[string]interface{}) *ToolResult {
-	if t.clientType == "" {
-		return ErrorResult("android tool: not available (no assistant session)")
-	}
-	if t.clientType != "assistant" {
-		return ErrorResult("android tool is only available in assistant mode")
-	}
 	if t.sendCallback == nil {
 		return ErrorResult("android tool: send callback not configured")
 	}
@@ -172,8 +164,12 @@ func (t *AndroidTool) validateAndBuildParams(action string, args map[string]inte
 	params := make(map[string]interface{})
 
 	switch action {
-	case "list_apps":
-		// No params needed
+	case "search_apps":
+		query, _ := args["query"].(string)
+		if query == "" {
+			return nil, fmt.Errorf("search_apps requires query")
+		}
+		params["query"] = query
 
 	case "app_info", "launch_app":
 		pkg, _ := args["package_name"].(string)