Gemini CLI and Dart MCP Server seem to be at odds.

[RandalSchwartz]

• Dart 3.9.0-333.2.beta (beta) (Tue Jul 15 05:13:46 2025 -0700) on "macos_arm64"
• on macos / Version 15.5 (Build 24F74)
• locale is en-US

Installed via puro (tracking puro tag "beta").

Added the Dart MCP Server into $HOME/.gemini/settings.json with:

   "dart": {
      "command": "puro",
      "args": [
        "-e",
        "beta",
        "dart",
        "mcp-server"
      ]
    }

Not initially, but begining about a week ago, I get this warning at every "gemini" launch:
Error discovering prompts from dart: MCP error -32601: Unknown method "prompts/list".

[kevmoo]

@jakemac53 ?

[jakemac53]

Oh, I literally just sent out a PR for this to Gemini CLI! google-gemini/gemini-cli#5616

[jakemac53]

Going to close this one as its not an issue with our MCP server but the MCP client implementation there