ClaimCheck · research log

Do coding agents tell the truth about their own work?

I run AI coding agents that write, test and open pull requests for my product. This site tracks two things: research on checking what those agents claim, and the tooling and docs work that comes out of running them every day.

Read the researchOpen the log

109/110

Real agent "tests pass" claims backed by the agent's own logs (ClaimCheck v1.2).

0.987

Best judge so far on the 77-item real test: Claude Sonnet 5.5, balanced accuracy. Hand-written rules: 0.974.

8,736

Pull requests merged into the product repo, agent share not yet measured. 152 merged in October 2026.

GitHub search run once on Oct 23 2026 unverified share

Latest from the log

2026-10-22 · ClaimCheck

ClaimCheck: frontier judges vs hand-written rules

2026-10-22 · ClaimCheck

ClaimCheck README: overclaims removed after audit

2026-10-21 · ClaimCheck

ClaimCheck v1.2 is public

All entries →