IvanMurzak / IvanMurzak/Unity-MCP

Windsurf returning invalid arguments error when using atleast 1 tool when using AI Game Developer MCP

Open
#653 2 comments 0 reactions 0 assignees View on GitHub

Nobody has claimed this yet.

Dominant language
C#
Stars
4.3k
Forks
379
Avg merge
6h 52m
Merged PRs (30d)
17

Description

Image

This happens in both http and stdio type mode for ai game developer mcp.
I was using SWE 1.6 model here. The same problem happens with different model chosen like Kimi K2.5
Used other - custom option since windsurf isn't in the list in MCP configuration

Got this result in both linux desktop ( nobara ) and macboook arm macos

This error doesn't happen when other MCPs were used, like one from coplay, etc.

Contributor guide

No contributing guide indexed for this repository

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by reproducing the invalid-arguments error with the AI Game Developer MCP through Windsurf in both HTTP and stdio modes, using the SWE 1.6 and Kimi K2.5 models. Compare the result with another MCP integration; done means tool calls succeed without the reported error on Linux and macOS.

Written by the indexing model from the issue text.

Assessment

Tech stack
csharp, unity
Domain
devtools, game-dev
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Quiet
Clarity
Needs clarification
Newbie friendliness
35/100

Get new issues in your inbox

A short digest of beginner-friendly GitHub issues.