Codex integration

[vshvedov]

I was able to successfully connect via OpenAI's Codex, however:

1. A button in Unity plugin to auto-create Codex's config.toml would be great
2. I'm getting "Unknown client" message (not sure if it's only cosmetic, or knowing a connected client impacts anything in the MCP):

[CoderGamester]

@vshvedov Thank you for sharing the information that it works with Codex. I am happy to hear it and will add on my list to add the config.toml config file button

Regarding the "Unknown client" is something legacy from first MCP clients that is no longer working. I will remove it in the next update

[grimrabbitgit]

How did you get this to work with Codex? I am trying to use it in Cursor via the Codex integration, and it's not happening. Codex in there is telling me I have to use the tools in Cursor's chat, then copy and paste the results (still in Cursor) into the Codex chat. I would love for Codex to use these tools directly somehow. I don't need it to be in Cursor. Anywhere.

[getraid]

I used this in my config.toml

[mcp_servers.mcp-unity]
command = "node"
args = [
  "C:/<ProjectPath>/Library/PackageCache/com.gamelovers.mcp-unity/Server~/build/index.js", "stdio"
]

It works with calling tools, but (sorry first time messing with MCP stuff) it can't seem to recognize mcp resources.
So it doesnt know what its creating or what the scene hierarchy looks like. So idk if thats something that I'm missing or if Codex lacks the ability.
I used the MCP Inspector, copied the server entry and then used a JSON2TOML converter and manually adjusted a few lines.
In the mcp inspector I saw that there are resources that can be viewed, but like I said Codex doens't seem to know about it.

Edit: I only tried on Windows btw, so no idea if macos will handle this differently.

[CoderGamester]

@getraid Ask manu questions as you want and I will do my best to support. MCP resources never worked properly for me in some MCP clients. The most reliable ones have been Claude Desktop and Windsurf. With Cursor I am able to use resources but need to tell the agent spefically to "Use MCP resources".
A bit frustrating where it seems the models are getting trained to mostly look or focus on the tools list and use the prompts as guides.

@grimrabbitgit that is a good workflow. Just to confirm, have you successuflly used the MCP with Codex SLI?