mutation-testing
✓Test quality validation through mutation testing, assessing test suite effectiveness by introducing code mutations and measuring kill rate. Use when evaluating test quality, identifying weak tests, or proving tests actually catch bugs.
Installation
SKILL.md
| 90%+ | Excellent test quality | | 80-90% | Good, minor improvements | | 60-80% | Needs attention | | < 60% | Significant gaps |
Common Mutation Operators | Category | Original | Mutant |
| Arithmetic | a + b | a - b | | Relational | x >= 18 | x > 18 | | Logical | a && b | a \|\| b | | Conditional | if (x) | if (true) | | Statement | return x | (removed) |
Test quality validation through mutation testing, assessing test suite effectiveness by introducing code mutations and measuring kill rate. Use when evaluating test quality, identifying weak tests, or proving tests actually catch bugs. Source: proffesor-for-testing/agentic-qe.
Facts (cite-ready)
Stable fields and commands for AI/search citations.
- Install command
npx skills add https://github.com/proffesor-for-testing/agentic-qe --skill mutation-testing- Category
- </>Dev Tools
- Verified
- ✓
- First Seen
- 2026-02-01
- Updated
- 2026-02-18
Quick answers
What is mutation-testing?
Test quality validation through mutation testing, assessing test suite effectiveness by introducing code mutations and measuring kill rate. Use when evaluating test quality, identifying weak tests, or proving tests actually catch bugs. Source: proffesor-for-testing/agentic-qe.
How do I install mutation-testing?
Open your terminal or command line tool (Terminal, iTerm, Windows Terminal, etc.) Copy and run this command: npx skills add https://github.com/proffesor-for-testing/agentic-qe --skill mutation-testing Once installed, the skill will be automatically configured in your AI coding environment and ready to use in Claude Code or Cursor
Where is the source repository?
https://github.com/proffesor-for-testing/agentic-qe
Details
- Category
- </>Dev Tools
- Source
- skills.sh
- First Seen
- 2026-02-01