Individual skill

harden-artifact

Harden a REQUIREMENTS or PLAN document against its ticket and the code before the next phase picks it up.

skills/harden-artifact/SKILL.md

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# Harden artifact

Make a `.REQUIREMENTS.md` or `.PLAN.md` — the **artifact** — safe to hand to the next phase:
every deviation from its ticket deliberate, explained and correct; every claim true; nothing
blocking the session that picks it up. A fresh-context reviewer hunts, the session challenges
each finding, and only what survives changes the artifact — which **must never end worse than it
started**.

A session that wrote the artifact cannot judge findings on it: say so and propose a fresh session
before continuing.

## Resolve the sources

- **Artifact** — the file the invocation names; ambiguous or neither kind → ask. A plan — the