add-regression-test

add-regression-test is a Bug triage & fixing skill for AI agents, published by AgentSystemLabs in the core repository on GitHub. Skillspace rates add-regression-test C (74/100) and it passed the safety scan; the rating is based on static analysis only.

After a bug fix lands (or is staged), generate a regression test that fails on the pre-fix code and passes on the post-fix code — pinning the bug so it can't silently return. Walks the agent through reproducing the failure first (against the pre-fix state via `git stash` or temporary revert), writing the assertion that captures it, then verifying the test goes red without the fix and green with it. Trigger phrases — "add a regression test", "pin this bug", "write a test for the fix", "/add-regression-test", "lock in this bug fix", "make sure this doesn't come back", or invoke automatically after a /fix-bug session that produced a code fix. Skip for — fixes whose behavior change is already covered by existing passing tests, pure refactors with no behavior delta, fixes to test code itself, and unreproducible heisenbugs.

Grade
C
Quality
74 / 100
Safety
Passed
GitHub stars
113

Unproven: rated by static analysis only, not yet compared head-to-head.

Not launch-quality. It is graded C with a clean safety verdict, but our quality filters exclude it: it looks written only for the repository it lives in. So it is not in our launch-quality set, the skills our MCP server searches and recommends. How launch-quality is decided

This rating describes the version of the repository we crawled; it may have changed since, so go by its current files.

View source on GitHubAgentSystemLabs/core

Our review

Architecture
99 / 100
Maturity
Structured: ships references or scripts
Security scan
No issues found
License
MIT
Adoption
Adopted by 0 other repositories, in 0 collections

Not checked yet

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  • Not judged on the rubric yet (not a contender in its category)
  • No blind task eval yet
  • Scope (portable / vendor / repo-internal) not assessed; only the top of each category is read for scope
  • Sibling files (scripts, references) not fetched; security scan covers SKILL.md only

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