unity-mcp/MCPForUnity
dsarno 35a5c75596
Feature/run tests summary clean (#501)
* Optimize run_tests to return summary by default, reducing token usage by 98%

- Add includeFailedTests parameter: returns only failed/skipped test details
- Add includeDetails parameter: returns all test details (original behavior)
- Default behavior now returns summary only (~150 tokens vs ~13k tokens)
- Make results field optional in Python schema for backward compatibility

Token savings:
- Default: ~13k tokens saved (98.9% reduction)
- With failures: minimal tokens (only non-passing tests)
- Full details: same as before when explicitly requested

This prevents context bloat for typical test runs where you only need
pass/fail counts, while still allowing detailed debugging when needed.

* Add warning when run_tests filters match no tests; fix test organization

TDD Feature:
- Add warning message when filter criteria match zero tests
- New RunTestsTests.cs validates message formatting logic
- Modified RunTests.cs to append "(No tests matched the specified filters)" when total=0

Test Organization Fixes:
- Move MCPToolParameterTests.cs from EditMode/ to EditMode/Tools/ (matches folder hierarchy)
- Fix inconsistent namespaces to MCPForUnityTests.Editor.{Subfolder}:
  - MCPToolParameterTests: Tests.EditMode → MCPForUnityTests.Editor.Tools
  - DomainReloadResilienceTests: Tests.EditMode.Tools → MCPForUnityTests.Editor.Tools
  - Matrix4x4ConverterTests: MCPForUnityTests.EditMode.Helpers → MCPForUnityTests.Editor.Helpers

* Refactor test result message formatting

* Simplify RunTests warning assertions

* Tests: de-flake cold-start EditMode runs

- Make ManageScriptableObjectTests setup yield-based with longer Unity-ready timeout

- Mark DomainReloadResilienceTests explicit to avoid triggering domain reload during Run All
2026-01-01 20:36:45 -08:00
..
Editor Feature/run tests summary clean (#501) 2026-01-01 20:36:45 -08:00
Runtime Test/478 matrix4x4 serialization crash (#481) 2025-12-23 15:53:14 -08:00
Editor.meta Rename plugin folder to MCPForUnity (#303) 2025-10-03 20:23:28 -04:00
README.md HTTP Server, uvx, C# only custom tools (#375) 2025-11-24 23:21:06 -04:00
README.md.meta Rename plugin folder to MCPForUnity (#303) 2025-10-03 20:23:28 -04:00
Runtime.meta Rename plugin folder to MCPForUnity (#303) 2025-10-03 20:23:28 -04:00
package.json chore: bump version to 8.5.0 2025-12-29 23:50:59 +00:00
package.json.meta Add .meta files (#472) 2025-12-19 18:59:19 -04:00

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

  1. Open Window > MCP for Unity.
  2. Click “Auto-Setup”.
  3. If prompted:
    • Select the packaged server folder (Server) if you want to run the bundled implementation.
    • Install Python and/or uv/uvx if missing so the server can be managed locally.
    • For Claude Code, ensure the claude CLI is installed.
  4. Click “Start Bridge” if the Unity Bridge shows “Stopped”.
  5. 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 isnt detected, use “Open Install Instructions”.
  • HTTP Server Command foldout:
    • Expands to display the exact uvx command Unity will run.
    • Includes a copy button and the “Start Local HTTP Server” action so you can launch or reuse the command elsewhere.

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 uvx with the current package version:
        • Command: uvx (or your overridden path)
        • Args: --from mcp-for-unity
      • Manual Setup: Opens a window with a pre-filled JSON snippet to copy/paste into your client config.
      • Choose UV Install Location: If uv/uvx isnt on PATH, select the executable.
      • A compact “Config:” line shows the resolved config file name once uv/server are detected.
    • Claude Code:
      • Register with Claude Code / Unregister MCP for Unity with Claude Code.
      • If the CLI isnt found, click “Choose Claude Install Location”.
      • The window displays the resolved Claude CLI path when detected.

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 projects needs. A description is shown under the dropdown.

Troubleshooting


Tips

  • Use Cmd+Shift+M (macOS) / Ctrl+Shift+M (Windows, Linux) to toggle the MCP for Unity window.
  • Enable “Show Debug Logs” in the header for more details in the Console when diagnosing issues.