mutation-testing
mutation-testing is a Test suite operations & coverage skill for AI agents, published by citypaul in the .dotfiles repository on GitHub. Skillspace rates mutation-testing C (74/100) and it passed the safety scan; the rating is based on static analysis only.
Set up and run mutation testing with Stryker, including full-project and diff-against-main runs, then use surviving mutants to strengthen weak or missing tests. Use during the MUTATE phase of the TDD cycle, when verifying that tests actually catch bugs (coverage alone is not enough), when the user mentions mutation testing, Stryker, mutation score, or surviving mutants, or when assessing whether a test suite would detect realistic regressions. For writing the tests themselves, see testing.
- Grade
- C
- Quality
- 74 / 100
- Safety
- Passed
- GitHub stars
- 684
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 is a near-duplicate variant of another skill. 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.
Our review
- Architecture
- 100 / 100
- Maturity
- Structured: ships references or scripts
- Security scan
- No issues found
- License
- MIT
- Adoption
- Adopted by 2 other repositories, in 0 collections
Not checked yet
- Category is a classifier prediction; no model has read this skill yet
- 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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