Conciseness

The body is dense, repo-specific decision policy with no explanation of concepts Claude already knows, and concrete wrong/correct examples earn their tokens. It is a 4 rather than 5 because rule 3 restates the baseline principle multiple times ('Write changesets for the user-visible delta from the release baseline' repeats the section's opening guidance), and the 'implementation diary' / 'user impact only' prohibition appears in both rule 3's don't-list and the Style section.

Actionability

Guidance is fully concrete and copy-paste ready: exact package names to patch-not-minor, changeset file paths ('.changeset/plate-fix-types.md'), frontmatter examples in wrong/correct pairs, a complete breaking-change template, and named owner scripts/workflows ('tooling/scripts/auto-release-pr.mjs', '.github/workflows/changeset-auto-release.yml'). This matches 'Fully executable; copy-paste ready code or commands; specific examples cover the common cases'.

Workflow Clarity

Rules are numbered and logically ordered, with a genuine validation checkpoint ('What will a user upgrading from the release baseline observe?') and a pre-write existence check ('check whether any named removed/renamed API actually exists in the baseline'). It is a 4 rather than 5 because the decision flow (package-only vs registry-only vs mixed vs none) is distributed across rules rather than given as one explicit sequence, and there is no final verification step for the written changeset.

Progressive Disclosure

The body keeps core changeset policy inline and delegates registry specifics to a real, one-level-deep reference that is clearly signaled twice ('[registry changelog entries](./references/registry.md)' and '[registry reference](./references/registry.md)'); the referenced file exists and holds the registry details appropriately. This matches 'Clear overview with well-signaled one-level-deep references; content appropriately split; easy navigation'.

Specificity

The description lists multiple concrete actions — 'Write and verify package release changesets, registry changelog entries, and the PR's managed auto-release choice' — covering all three artifact types the skill manages, with no vague filler. This matches the anchor 'Lists multiple specific concrete actions; comprehensive coverage'; it is not a 4 because there is no noticeable gap in the skill's declared scope.

Completeness

Both what and when are explicit: the what is 'Write and verify package release changesets, registry changelog entries, and the PR's managed auto-release choice', and the when is the explicit trigger clause 'Use before deciding whether a package edit needs a changeset, including skipping one'. This clearly matches the 5 anchor ('Clearly and explicitly answers both what AND when with concrete trigger phrases') rather than the 4 anchor where the 'when' is only weakly specified.

Trigger Term Quality

Natural terms present include 'changeset', 'package release', 'changelog', 'auto-release', and 'package edit', which a user would plausibly say. It falls short of the 5 anchor ('comprehensive coverage including synonyms and file extensions') because common synonyms like 'release notes', 'version bump', and the '.changeset' directory path are absent.

Distinctiveness Conflict Risk

The changeset/registry-changelog/auto-release niche is distinct with specific trigger terms, so it is unlikely to fire for unrelated skills. It matches 'Clear niche with distinct triggers; minimal conflict risk'; there is no meaningful overlap with a generic skill description.