* Add a decorate that wraps around the `mcp.tool` decorator.
This will allow us to more easily collect tools
* Register tools that's defined in the tools folder
* Update Python tools to use new decorator
* Convert script_apply_edits tool
* Convert last remaining tools with new decorator
* Create an attribute so we can identify tools via Reflection
* Add attribute to all C# tools
* Use reflection to load tools
* Initialize command registry to load tools at startup
* Update tests
* Move Dev docs to docs folder
* Add docs for adding custom tools
* Update function docs for Python decorator
* Add working example of adding a screenshot tool
* docs: update relative links in README files
Updated the relative links in both README-DEV.md and README-DEV-zh.md to use direct filenames instead of paths relative to the docs directory, improving link correctness when files are accessed from the root directory.
* docs: update telemetry documentation path reference
Updated the link to TELEMETRY.md in README.md to point to the new docs/ directory location to ensure users can access the telemetry documentation correctly. Also moved the TELEMETRY.md file to the docs/ directory as part of the documentation restructuring.
* rename CursorHelp.md to docs/CURSOR_HELP.md
Moved the CursorHelp.md file to the docs directory to better organize documentation files and improve project structure.
* docs: update CUSTOM_TOOLS.md with improved tool naming documentation and path corrections
- Clarified that the `name` argument in `@mcp_for_unity_tool` decorator is optional and defaults to the function name
- Added documentation about using all FastMCP `mcp.tool` function decorator options
- Updated class naming documentation to mention snake_case conversion by default
- Corrected Python file path from `tools/screenshot_tool.py` to `UnityMcpServer~/src/tools/screenshot_tool.py`
- Enhanced documentation for tool discovery and usage examples
* docs: restructure development documentation and add custom tools guide
Rearranged the development section in README.md to better organize the documentation flow. Added a dedicated section for "Adding Custom Tools" with a link to the new CUSTOM_TOOLS.md file, and renamed the previous "For Developers" section to "Contributing to the Project" to better reflect its content. This improves discoverability and organization of the development setup documentation.
* docs: update developer documentation and add README links
- Added links to developer READMEs in CUSTOM_TOOLS.md to guide users to the appropriate documentation
- Fixed typo in README-DEV.md ("roote" → "root") for improved clarity
- These changes improve the developer experience by providing better documentation navigation and correcting technical inaccuracies
* feat(tools): enhance tool registration with wrapped function assignment
Updated the tool registration process to properly chain the mcp.tool decorator and telemetry wrapper, ensuring the wrapped function is correctly assigned to tool_info['func'] for proper tool execution and telemetry tracking. This change improves the reliability of tool registration and monitoring.
* Remove AI generated code that was never used...
* feat: Rebuild MCP server installation with embedded source
Refactored the server repair logic to implement a full rebuild of the MCP server installation using the embedded source. The new RebuildMcpServer method now:
- Uses embedded server source instead of attempting repair of existing installation
- Deletes the entire existing server directory before re-copying
- Handles UV process cleanup for the target path
- Simplifies the installation flow by removing the complex Python environment repair logic
- Maintains the same installation behavior but with a cleaner, more reliable rebuild approach
This change improves reliability of server installations by ensuring a clean slate rebuild rather than attempting to repair potentially corrupted environments.
* Add the rebuild server step
* docs: clarify tool description field requirements and client compatibility
* fix: move initialization flag after tool discovery to prevent race conditions
* refactor: remove redundant TryParseVersion overrides in platform detectors
* refactor: remove duplicate UV validation code from platform detectors
* Update UnityMcpBridge/Editor/Tools/CommandRegistry.cs
Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>
* refactor: replace WriteToConfig reflection with direct McpConfigurationHelper call
---------
Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>
|
||
|---|---|---|
| .. | ||
| Editor | ||
| Runtime | ||
| UnityMcpServer~/src | ||
| Editor.meta | ||
| README.md | ||
| README.md.meta | ||
| Runtime.meta | ||
| package.json | ||
| package.json.meta | ||
README.md
MCP for Unity — Editor Plugin Guide
Use this guide to configure and run MCP for Unity inside the Unity Editor. Installation is covered elsewhere; this document focuses on the Editor window, client configuration, and troubleshooting.
Open the window
- Unity menu: Window > MCP for Unity
The window has four areas: Server Status, Unity Bridge, MCP Client Configuration, and Script Validation.
Quick start
- Open Window > MCP for Unity.
- Click “Auto-Setup”.
- If prompted:
- Select the server folder that contains
server.py(UnityMcpServer~/src). - Install Python and/or uv if missing.
- For Claude Code, ensure the
claudeCLI is installed.
- Select the server folder that contains
- Click “Start Bridge” if the Unity Bridge shows “Stopped”.
- Use your MCP client (Cursor, VS Code, Windsurf, Claude Code) to connect.
Server Status
- Status dot and label:
- Installed / Installed (Embedded) / Not Installed.
- Mode and ports:
- Mode: Auto or Standard.
- Ports: Unity (varies; shown in UI), MCP 6500.
- Actions:
- Auto-Setup: Registers/updates your selected MCP client(s), ensures bridge connectivity. Shows “Connected ✓” after success.
- Rebuild MCP Server: Rebuilds the Python based MCP server
- Select server folder…: Choose the folder containing
server.py. - Verify again: Re-checks server presence.
- If Python isn’t detected, use “Open Install Instructions”.
Unity Bridge
- Shows Running or Stopped with a status dot.
- Start/Stop Bridge button toggles the Unity bridge process used by MCP clients to talk to Unity.
- Tip: After Auto-Setup, the bridge may auto-start in Auto mode.
MCP Client Configuration
- Select Client: Choose your target MCP client (e.g., Cursor, VS Code, Windsurf, Claude Code).
- Per-client actions:
- Cursor / VS Code / Windsurf:
- Auto Configure: Writes/updates your config to launch the server via uv:
- Command: uv
- Args: run --directory server.py
- Manual Setup: Opens a window with a pre-filled JSON snippet to copy/paste into your client config.
- Choose
uvInstall Location: If uv isn’t on PATH, select the uv binary. - A compact “Config:” line shows the resolved config file name once uv/server are detected.
- Auto Configure: Writes/updates your config to launch the server via uv:
- Claude Code:
- Register with Claude Code / Unregister MCP for Unity with Claude Code.
- If the CLI isn’t found, click “Choose Claude Install Location”.
- The window displays the resolved Claude CLI path when detected.
- Cursor / VS Code / Windsurf:
Notes:
- The UI shows a status dot and a short status text (e.g., “Configured”, “uv Not Found”, “Claude Not Found”).
- Use “Auto Configure” for one-click setup; use “Manual Setup” when you prefer to review/copy config.
Script Validation
- Validation Level options:
- Basic — Only syntax checks
- Standard — Syntax + Unity practices
- Comprehensive — All checks + semantic analysis
- Strict — Full semantic validation (requires Roslyn)
- Pick a level based on your project’s needs. A description is shown under the dropdown.
Troubleshooting
- Python or
uvnot found: - Claude CLI not found:
Tips
- Enable “Show Debug Logs” in the header for more details in the Console when diagnosing issues.