Conciseness

The body is efficient overall — a copy-paste git command, terse format rules, and a compact example — but the per-type filename bullet list is largely redundant with the "Allowed types" line, and rule 7's Good/Bad example block is heavier than needed. These are minor instances of over-explanation that could be trimmed, matching anchor 4 rather than the lean anchor 5.

Actionability

Guidance is fully executable: a copy-paste-ready `git log main..HEAD --oneline` command, an exact `{PR_NUMBER}.{type}.md` naming scheme with the multi-entry suffix convention, explicit entry-format rules (single leading `- ` line, indented detail lines, ⚠️ prefix), and concrete example files. Not anchor 4's "minor gaps" — the common cases are completely specified.

Workflow Clarity

Steps 1–8 form a clear numbered sequence (skip criteria → inspect commits → write entries → review) with an explicit validate-and-fix loop in step 8 ("run /prose-review changelog/ and fix anything it flags"), satisfying the batch-operation validation requirement. Minor gaps — no handling for a missing changelog/ directory and no description of re-checking after fixes — keep it below anchor 5.

Progressive Disclosure

This is a simple, single-purpose skill with no bundle files, and everything is appropriately inlined in one well-organized file with clear ## Instructions and ## Example sections. There is no content that belongs in a separate reference and no nested referencing, fitting the simple-skill case of a clear, well-organized single file.

Specificity

"Create changelog files" names the domain and one concrete action, but no other actions or format detail are stated. It matches the anchor 'names domain and 1-2 concrete actions, but not comprehensive' rather than anchor 4, which expects several specific actions listed.

Completeness

The description has a clear "what" ("Create changelog files for important commits in a PR") but no "Use when..." clause or equivalent explicit trigger guidance, which caps completeness at 3 per the judging guidelines. Not score 2 because the "what" is specific, not vague.

Trigger Term Quality

"changelog", "commits", and "PR" are natural terms users would say when needing this skill, giving good keyword coverage. It falls short of anchor 5 because common synonyms and variations such as "release notes" or "CHANGELOG.md" are missing.

Distinctiveness Conflict Risk

The changelog-for-PRs framing carves out a fairly distinct niche with a clear artifact, so it is mostly distinguishable from other skills. Minor overlap risk remains with closely related skills like commit-message generation or general release-notes writing, keeping it below anchor 5.