# Railway CLI ยท Context Atlas > The sources Railway CLI publishes for coding agents. Fetch the llms.txt or Rules source first; fetch Full text sources only to search them, they are often several megabytes. Full catalog and instructions: https://contextatlas.dev/llms.txt Last updated: 2026-10-23 ### Railway CLI Role: Deploy Signals: railway.json - [Railway CLI](https://docs.railway.com/cli): Docs