Pin a shell guardrail (a hook, a git hook, a checker script) with a behavioral test suite, prove the suite is real by mutating the code, and wire it into CI with its mutation ledger. Use when asked to "add tests for this hook", "pin that guard", "mutation-test this script", "this hook has no test", "wire the suite into CI", or after changing any guardrail's behaviour.
Installs into .claude/skills of the current project.
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---
name: pin-guardrail
description: Pin a shell guardrail (a hook, a git hook, a checker script) with a behavioral test suite, prove the suite is real by mutating the code, and wire it into CI with its mutation ledger. Use when asked to "add tests for this hook", "pin that guard", "mutation-test this script", "this hook has no test", "wire the suite into CI", or after changing any guardrail's behaviour.
---
Router, not a procedure. Cursor does not auto-load Claude Code skills, so this file exists
only to point at the canonical one. Read `.claude/skills/pin-guardrail/SKILL.md` and follow it.
