Conciseness

The body is dense and efficient — decision tables for semver bumps, changelog-vs-release-notes, and communication channels, with no explanation of concepts Claude already knows. It is not a 5 because a few editorial asides ('Breaking change sem aviso previo e o pior pesadelo de quem consome', 'release na sexta 18h sem on-call (classico)') are padding that could be trimmed.

Actionability

Mostly concrete and executable for an instruction-only skill: a semver bump table with examples, a Keep a Changelog template, a ready-to-use release-notes example, 'git tag -a v2.4.0 -m "..."', and a per-channel communication table. It falls short of 5 because the rollback trigger is left as placeholders ('error rate > X% ou p95 > Y ms por Z min') and the referenced 'templates/release-plan.md' does not exist in the skill bundle.

Workflow Clarity

The release workflow has an explicit pre-release checklist with validation gates (QA/Security/Reviewer green, constitution gates, migrations reversibles, 'rollback testado em staging'), and a clear feedback loop: monitor error rate/p95 against the pre-defined trigger for the full Z-minute window, execute the already-decided rollback mechanism if it fires, then restart from the full pre-release checklist rather than re-applying the same release. This matches the level-5 anchor (checklists, explicit validation, error-recovery feedback loop) for a risky batch operation.

Progressive Disclosure

Sections are well-organized (Quando Usar / Quando Nao Usar / Entradas / Saidas / decisao / runbook / comunicacao) and all content is appropriately inline for a ~130-line overview. It is not 5 because the skill exceeds the simple-skill threshold and its external file references ('templates/release-plan.md', 'policies/handoffs.md') are only lightly signaled in a Handoff section and do not exist as bundle files, leaving minor organization gaps.

Specificity

The description lists seven concrete actions — 'coordenar release, versionamento, changelog, release notes, rollout, rollback e comunicacao interna' — giving comprehensive coverage of the release-coordination domain. It exceeds the level-4 anchor ('several specific actions; minor gaps') because no core responsibility of the skill is omitted.

Completeness

It explicitly answers both questions: 'what' via the seven concrete capabilities in the first sentence, and 'when' via 'Use quando a mudanca estiver pronta para empacotamento e liberacao controlada' plus a concrete trigger list. This matches the level-5 anchor of both what and when with concrete trigger phrases.

Trigger Term Quality

Ten explicit trigger phrases ('release manager', 'coordenar release', 'bump de versao', 'release candidate', 'tag de versao') are natural things a user would say. It falls short of level 5 because common variations and synonyms are missing (e.g., 'publicar release', 'preparar release', 'versionar'), though coverage is clearly good rather than partial.

Distinctiveness Conflict Risk

The niche (release packaging/versioning/communication) is clear and mostly distinct, with dedicated triggers like 'release manager' and 'release candidate'. However, 'changelog' and 'release notes' are triggers that would also naturally activate a documentation or changelog-writing skill in the same ecosystem, so minor overlap risk with closely related skills remains.