We analyze every PR, show what might break, and tell you exactly
what to test — before you merge.
WORKING WITH A SMALL GROUP OF TEAMS

"RUNS AUTOMATICALLY ON EVERY PR"
AI made it easy to write code.
It also made it easy to ship unknown bugs.
Most PRs are merged on intuition.
Cystatic fixes that.
See high-risk changes
instantly
Understand system-wide
impact
Know exactly what to test
before merging
Get a clear merge signal
BACKEND ENGINEERS WORKING ON APIS
TEAMS SHIPPING FAST WITH AI TOOLS
SYSTEMS WHERE REGRESSIONS ACTUALLY MATTER
Get early access to PR risk analysis
We'll set this up on a real repo and run it on your PRs
WE'LL REACH OUT TO SET THIS UP ON A REAL REPO