MCP Selection Lab for Zed

io.github.changhuliu/mcp-selection-lab

Benchmark MCP tool selection with metadata-only routing, collision, abstention, and holdout checks.

client:Zed transport:streamable-http tools:3

Install MCP Selection Lab in Zed

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

{
  "context_servers": {
    "mcp-selection-lab": {
      "url": "https://mcp-selection-lab-production.up.railway.app/mcp"
    }
  }
}

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