once for Windsurf

io.github.aurumflux20/once-kernel

Run a side effect exactly once under retries, redelivery, and concurrent workers.

client:Windsurf transport:stdio runtime:pypi

Install once in Windsurf

~/.codeium/windsurf/mcp_config.json · windows: %USERPROFILE%\.codeium\windsurf\mcp_config.json

{
  "mcpServers": {
    "once-kernel": {
      "command": "uvx",
      "args": [
        "once-kernel"
      ]
    }
  }
}

Global only — Windsurf has no per-project MCP config. Refresh Cascade after saving. Windsurf docs