POSTFACT — Resolve Ambiguous Side Effects Before Retry for Gemini CLI

io.github.gsterlingpress/postfact

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

client:Gemini CLI transport:streamable-http tools:1

Install POSTFACT — Resolve Ambiguous Side Effects Before Retry in Gemini CLI

~/.gemini/settings.json · windows: %USERPROFILE%\.gemini\settings.json

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

Gemini expands $VAR and ${VAR} inside env values, so a secret can live in your shell rather than this file. Gemini CLI docs