The problem was reproduced independently by me and my colleague on different Macs.

We were trying to install MCP for Windsurf, latest version and failed.

I tried to build it and use this config:

    "github": {
      "command": "/opt/tmp/github-mcp-server/cmd/github-mcp-server/github-mcp-server",
      "args": [
        "stdio",
        "--log-file=/tmp/github-mcp.log",
        "--enable-command-logging"
      ],
      "env": {
        "GITHUB_PERSONAL_ACCESS_TOKEN": "<redacted>"
      }
    }

Here's the error:

Here's the log:
github-mcp.log

As I can see, the error occurs on the initial stage of parsing tools.

Versions: latest revision of Github MCP, latest Windsurf.
Latest MacOS.