POSTFACT — Resolve Ambiguous Side Effects Before Retry for Cursor

io.github.gsterlingpress/postfact

Resolve whether an uncertain side-effecting action completed before software retries it.

client:Cursor transport:streamable-http tools:1

Install POSTFACT — Resolve Ambiguous Side Effects Before Retry in Cursor

~/.cursor/mcp.json · windows: %USERPROFILE%\.cursor\mcp.json

{
  "mcpServers": {
    "postfact": {
      "url": "https://postfact-api-production.up.railway.app/mcp"
    }
  }
}

Use .cursor/mcp.json in a project root instead to scope it to that project. Cursor merges both. Cursor docs