ZAR is a GitHub App that automatically keeps your documentation up to date as your code changes.

You push code as usual. ZAR analyzes what changed using AST parsing and Claude AI, then opens a pull request with updated documentation — usually in about 20 seconds. No prompts, no manual work.

Documentation goes stale fast. New engineers lose days understanding outdated docs, and nobody wants to update them by hand. ZAR fixes this at the source: every commit gets a status check, and when a change is significant enough to make the docs wrong, ZAR opens a PR with the fix.

It works with any GitHub repo and pairs with your existing docs setup — Mintlify, Docusaurus, or a plain README. Built for engineering teams who ship fast and can't afford their docs falling behind.

Key features:

• AST-based analysis — understands real code structure, not just text diffs

• Powered by Claude AI — accurate docs written in your repo's voice

• ~20 second turnaround from push to PR

• Status checks on every commit

• Optional CI gate to block merges when docs are stale

• Writes to your repo, not a separate silo

Built by a solo founder who got tired of stale docs.