Does it work with custom test scripts?

Absolutely. You can provide any shell command, npm test, or custom script that returns a standard exit code to signal success or failure.

What happens if a commit in the history has a build failure?

The skill includes error handling strategies to skip unbuildable commits or flag them in the final report, ensuring the search for the regression continues.

Can it automatically detect when the code was last working?

Yes, the skill can analyze your CI history or release tags to automatically identify the 'last known good' commit, minimizing manual configuration.

How does the regression-bisect skill find the breaking commit?

It uses the git bisect binary search algorithm to traverse your commit history, executing a specified test command at each point to determine exactly where the failure was introduced.

Regression Bisect Automation

Name: Regression Bisect Automation
Author: jmagly

byjmagly

•

102

•

Security & Testing

Identifies the specific commit that introduced a regression by automating the git bisect process and test execution.

The regression-bisect skill automates the complex task of root cause analysis by performing an intelligent binary search through your Git history. When a feature breaks, this skill takes over the git bisect workflow, automatically identifying known good and bad states, running relevant test suites at each step, and pinpointing the exact commit that introduced the failure. It goes beyond simple identification by providing a comprehensive analysis of the breaking change, including diff context, blame information, and AI-driven recommendations for fixes or rollbacks, significantly reducing debugging time in large codebases.

Key Features

01Detailed regression reports with diff analysis and code ownership metadata

02AI-powered fix strategies and backward compatibility impact assessments

03102 GitHub stars

04Automatic discovery of known good states via CI history and release tags

05Automated binary search through Git history using git bisect

06Integration with existing test suites for automated pass/fail detection

Use Cases

01Finding the origin of a performance regression by running automated benchmarks

02Pinpointing which commit broke a specific API endpoint or UI component

03Analyzing historical regressions to prevent similar issues in future PRs

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add jmagly/aiwg regression-bisect

For use in Claude.ai and ChatGPT