ChooChoo is a CLI toolkit for validating data specs and tracking AI agent contributions to your codebase.

npm install -g @choochoo-works/cli
choochoo init
choochoo validate ./choochoo/docs

What you get

• Validate YAML and JSON files against ODPS, ODCS, OpenLineage, and AI System Card schemas — locally and in CI/CD.
• Trace who changed what and why. Auto-detect coding agents (Claude Code, OpenCode, Gemini CLI) and install hooks that record every AI-assisted change.
• Browse your documentation in the terminal or a local web server, and render mermaid diagrams as ASCII art.

Get started

• Installation — Install the CLI in under a minute.
• Quickstart — Initialize a project, validate, and connect your coding agent.
• CLI Reference — Full command and flag reference.
• Agent Traces — Record who changed what and why.

Learn more

• Architecture — How The Engine, The Map, and The Station fit together.
• Why ChooChoo? — The problem we're solving: context loss in AI-assisted development.
• Standards Reference — ODPS, ODCS, Arazzo, and Agent Trace — the open standards behind ChooChoo.
• Roadmap — What's shipped, what's next.