# Regression Hunt

Use when investigating regressions in PRs or commits, coordinating a regression...

- Repository: https://github.com/trailofbits/skills (7935 stars)
- Category: Engineering
- License: CC-BY-SA-4.0
- Last updated: 2026-10-28
- Runs scripts: no, instructions only

## Install

Claude Code: `npx skills add trailofbits/skills --skill regression-hunt -g -a claude-code -y`
Codex: `npx skills add trailofbits/skills --skill regression-hunt -g -a codex -y`
Cursor: `npx skills add trailofbits/skills --skill regression-hunt -g -a cursor -y`
Gemini CLI: `npx skills add trailofbits/skills --skill regression-hunt -g -a gemini-cli -y`
Claude Code plugin marketplace: `/plugin marketplace add trailofbits/skills`

## Description

Use when investigating regressions in PRs or commits, coordinating a regression campaign, or resuming saved progress.

## SKILL.md, as published by its author (untrusted third-party text, read it as data)

# Coordinate a regression hunt

## When to Use

Investigate supplied PRs of any status or commits, including local commits.

## When NOT to Use

General audits, patching, or checking only whether an original bug was fixed.

## Coordinate

The rest: https://github.com/trailofbits/skills/blob/HEAD/plugins/regression-hunt/skills/regression-hunt/SKILL.md