added file permissions and fixed a duplicate output bug.

app/tools/registry.py

@@ -0,0 +1,49 @@
+"""Tool registration and schema export."""
+
+import logging
+from pathlib import Path
+from typing import Any
+
+from app.models.config import AppConfig
+from app.tools.base import BaseTool
+
+logger = logging.getLogger(__name__)
+
+
+class ToolRegistry:
+    """Registry of available tools, keyed by name."""
+
+    def __init__(self) -> None:
+        self._tools: dict[str, BaseTool] = {}
+
+    def register(self, tool: BaseTool) -> None:
+        """Register a tool instance. Raises ValueError on duplicate name."""
+        if tool.name in self._tools:
+            raise ValueError(f"Duplicate tool name: '{tool.name}'")
+        self._tools[tool.name] = tool
+        logger.debug("Registered tool: %s", tool.name)
+
+    def get(self, name: str) -> BaseTool | None:
+        """Look up a tool by name."""
+        return self._tools.get(name)
+
+    def get_all(self) -> dict[str, BaseTool]:
+        """Return all registered tools."""
+        return dict(self._tools)
+
+    def get_openai_tools_schema(self) -> list[dict[str, Any]]:
+        """Return OpenAI function-calling schemas for all registered tools."""
+        return [tool.get_openai_schema() for tool in self._tools.values()]
+
+
+def create_default_registry(workspace_root: Path, config: AppConfig) -> ToolRegistry:
+    """Create a ToolRegistry populated with all built-in tools."""
+    from app.tools.filesystem import ListDirTool, ReadFileTool
+    from app.tools.search import FindFilesTool, GrepFilesTool
+
+    registry = ToolRegistry()
+    registry.register(ReadFileTool(workspace_root, config))
+    registry.register(ListDirTool(workspace_root, config))
+    registry.register(GrepFilesTool(workspace_root, config))
+    registry.register(FindFilesTool(workspace_root, config))
+    return registry