Trail of Bits ships agent plugins for patching and regression hunting

What the research found

Trail of Bits released patching-bugs and regression-hunt agent plugins; their review of merged Patch the Planet patches found 21 regressions in over 130 PRs, none breaking a security protection, and regression-hunt cut false positives 25% versus a baseline Codex prompt.

Claims and how well the evidence supports them

1. Trail of Bits published patching-bugs and regression-hunt plugins for agent-driven patching 98%
2. Review found 21 regressions from over 130 merged PRs: 16 functional, one performance, four build/test 99%
3. regression-hunt produces 25% fewer false positives than baseline Codex prompt 98%
4. No confirmed regressions broke a security protection 98%

Evidence

• blog.trailofbits.com https://blog.trailofbits.com/2026/10/21/your-ai-agent-fixed-the-bug-but-what-else-did-it-change

Actionability rated medium.