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rascal mcp for Zed

io.github.mrfentmen/rascal-mcp

Rascal MCP: 20 real tools to read, check, lint, scaffold, build and run Rascal code.

client:Zed transport:stdio runtime:npm

Install rascal mcp in Zed

~/.config/zed/settings.json · windows: %APPDATA%\Zed\settings.json

{
  "context_servers": {
    "rascal-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@mrfentmen/rascal-mcp"
      ]
    }
  }
}

Merge this into your existing settings object — do not replace the file. Zed docs

rascal mcp in other clients