# Check · beepometer

> Use when proving a repo's tests actually catch their code with Gutcheck's mutation probe (prove) and deterministic checker, acting on a hollow oracle, an uncited expected value, or a derivation/assertion mismatch it flags, and before any "it passes" claim.

## Facts
- Page: https://tashan.sh/capability/skill-beepometer-check
- tashan id: skill:beepometer/check
- Source: https://github.com/beepometer/gutcheck
- Type: skill
- Category: devtools
- tashan score: 44.0 / 100
- Adoption: 17.0
- Upkeep: 64.0
- Freshness: 98.0
- Evidence coverage: 84% of the inputs this score can use
- Health: active
- Instruction depth: not yet graded
- GitHub stars: 4
- License: MIT
- Official: no

## Install

```sh
cp -r check ~/.claude/skills/
```

## Security audit
Not scanned. We audit npm-published capabilities; this one has no npm package we can resolve, or has not reached the queue. This is not a clean bill of health.

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Measured 2026-08-20 by tashan (https://tashan.sh) from public evidence. Scorer s5.