The body is dense, actionable guidance that assumes Claude's competence — it never explains what a changelog or version is — and every section earns its place; the "Avoid these failures" checklist is mild but deliberate reinforcement rather than padding, keeping it above level 2.

Concrete rules (default to 0.9.0 then 0.9.1/0.9.2, `patch = deploymentOrdinal - 1`, per-entry schema fields) and specific step sequences give executable direction; per the rubric's instruction-only note, the absence of code in the body is not penalized when guidance is this actionable, so it is not level 2.

Multi-step processes are explicitly sequenced with validation checkpoints — the 10-step "Release safely" list, numbered "Build or backfill the ledger" steps, and a "Validate the contract" checklist with a reconcile-or-stop feedback loop — matching the level-3 anchor.

The body is a well-sectioned overview that points one level deep to a real, clearly signaled reference ("See references/reference-architecture.md"), and the referenced file exists, satisfying the level-3 anchor rather than the inline-bloated level-2 example.

Lists multiple concrete actions — "Design, implement, backfill, audit, and release in-game changelogs with contiguous versioning, deployment provenance, menu-state navigation, accessible toggle, close, and Escape behavior, and responsive release-ledger UI" — matching the level-3 anchor rather than the partial level-2 example.

It states both what the skill does (the action list) and when to use it via an explicit "Use when…" clause, satisfying the level-3 requirement; it is not level 2 because the trigger guidance is explicit rather than implied.

The "Use when Codex needs to add or revise a changelog or version screen in a game, reconstruct release history from deployments and Git, define version-bump rules, keep displayed versions synchronized with live builds, or test changelog mechanics across desktop and mobile" clause covers natural terms a user would say; it is above level 2 because it spans many phrasings, not a single keyword.

The niche — in-game changelog/version-screen lifecycle tied to deployments and menu navigation — is distinct and unlikely to fire for unrelated skills, matching the level-3 anchor.