mutation-test
SkillDev toolsRun mutation tests with cargo-mutants to verify test quality. Reports caught, missed, and timed-out mutants.
Available today. Use it from your connected AI after setup.
No other account needed.
Connect ahel once, and every AI you use reads what you have installed.
Then ask your AI: use the mutation-test skill
What this skill tells your AI
The instructions your AI receives, as published by nwiizo/ccswarm in .agents/skills/mutation-test/SKILL.md and read by ahel’s review.
Run mutation tests on the specified crate (default: ccswarm):
# Install if needed
cargo mutants --version || cargo install cargo-mutants
# List mutants
cargo mutants --list -p $ARGUMENTS | head -50
# Run mutation tests
cargo mutants -p ${1:-ccswarm} --timeout 120 -j 4
# Report results
echo "=== Caught ===" && wc -l mutants.out/caught.txt
echo "=== Missed ===" && cat mutants.out/missed.txt
echo "=== Timeout ===" && wc -l mutants.out/timeout.txt
Focus on missed mutants in business logic - these indicate insufficient test coverage.
Signals
- GitHub stars
- 151
- Forks
- 15
- Last commit
- Sep 2026
Advanced
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mutation-test-nwiizo- Source
- github.com/nwiizo/ccswarm