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Curtail

See ReGrade in action

Three self-contained demos — behavioral, performance, and security. Watch each, then run it yourself from its public repo.

Behavioral

See it in action

Record real traffic, replay it against a new build, and let an AI agent map the noise and surface the one real regression — start to finish.

Run it yourself: github.com/Curtail-Inc/hello-ReGrade

Performance

Stress-test performance

Replay your traffic under load with three knobs, and catch a performance regression that returns identical responses — and only breaks under concurrency.

Run it yourself: github.com/Curtail-Inc/hello-ReGrade-perf

Security

Find a hidden vulnerability

Point an ordinary test suite at ReGrade and catch a password-hash leak — a CVE-class bug no test was written to find, surfaced by comparing an app to itself.

Run it yourself: github.com/Curtail-Inc/hello-ReGrade-security