POSTFACT — Resolve Ambiguous Side Effects Before Retry for Claude.ai

io.github.gsterlingpress/postfact

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

client:Claude.ai transport:streamable-http tools:1

Install POSTFACT — Resolve Ambiguous Side Effects Before Retry in Claude.ai

Settings → Connectors → Add custom connector

https://postfact-api-production.up.railway.app/mcp

Claude on the web takes a remote URL and completes OAuth in the browser. For a packaged server use Claude Desktop or Claude Code instead. Claude.ai docs

What Claude.ai can do once it is connected

resolve_outcome

POSTFACT — Resolve Ambiguous Side Effects Before Retry in other clients

Claude Code
Claude Desktop
Cursor
VS Code
Zed
Windsurf
Cline
Gemini CLI
Grok
ChatGPT
LangChain

POSTFACT — Resolve Ambiguous Side Effects Before Retry MCP server