Conciseness

The 26-line body is lean and efficient with zero padding: every sentence carries project-specific facts Claude cannot infer (authorization semantics, cumulative-notes rules, CI gates, stable-branch timing). It assumes Claude's competence and never explains concepts it already knows, matching anchor 5 ('every token earns its place').

Actionability

For an instruction-only skill the guidance is concrete and executable: specific decision rules ("Use the user's target tag or release type... ask only for the missing version decision"), explicit prohibitions ("Never force-push main/stable, move an existing release tag, or delete/recreate a published release"), and concrete deliverables ("Report the notes file or published release URL, exact tag, cleanup/stable results, and actual CI status"). It is not anchor 5 because some operational terms (e.g., "collapse same-series prerelease notes") are not defined until one level down in the references, leaving minor gaps in the body itself.

Workflow Clarity

The flow is clearly sequenced (match requested outcome → select and load the right reference → resolve version → execute under invariants → report completion) with explicit validation checkpoints: "Publish from an up-to-date, clean main release checkout", "update stable after the versioned Makefiles job succeeds", and an explicit failure path ("report the concrete blocker and remaining work"). Because destructive-operation validation checkpoints are present, the cap at 3 does not apply; it falls short of anchor 5 only because the detailed publish step ordering and fix-retry loops live in publishing.md rather than the body.

Progressive Disclosure

The body is a proper overview with two well-signaled, one-level-deep references that both exist and match their stated scopes: "For notes, version selection, and cumulative prerelease history, read [notes.md]" and "For build preparation, publication, recovery, and CI/stable handling, read [publishing.md]. Load it only when preparing or executing publication." The explicit lazy-load instruction and clean split of overview vs. executable detail match anchor 5 exactly.

Specificity

The description lists two concrete primary actions ("Prepare rtp2httpd release notes", "publish a requested version") plus two named handling scopes ("prerelease and stable-branch handling"), matching anchor 4's 'several specific actions; minor gaps in coverage'. It falls short of anchor 5 because it omits adjacent capabilities like version selection or CI verification that the skill actually covers.

Completeness

The 'what' is clearly stated (prepare release notes or publish a version) but there is no 'Use when...' clause or equivalent explicit trigger guidance, which caps completeness at 3 per the judging guidelines. This exactly matches anchor 3's example ('Extract text and tables from PDF files, fill forms, merge documents') — clear what, missing when; it is not anchor 4 because no when-clause exists even weakly.

Trigger Term Quality

Natural keywords users would say are present: "release notes", "publish", "version", "prerelease", "stable-branch". This matches anchor 4 ('good keyword coverage; a few natural terms missing') rather than anchor 5 because common variations like "changelog", "cut a release", "tag a version", or "GitHub release" are absent.

Distinctiveness Conflict Risk

The project-specific name "rtp2httpd" gives the skill a clear niche with distinct triggers and minimal conflict risk with other skills, matching anchor 5. It cannot be anchor 4 because there is no meaningful overlap with closely related skills — the description only fires for a single named project's releases.