Conciseness

Several passages are duplicated verbatim: the local-hook/CI gate defaults are stated twice back-to-back ("Por padrão, o hook local roda `bob check --gates crap,dry,deps`... O CI roda..." followed by a bullet list repeating both commands), exit-4 is described twice in consecutive lines ("erro de configuração ou ferramenta ausente" then "O `4` é erro de configuração ou ferramenta ausente..."), and the `usage: bob` stderr signature appears three times (Exit codes section plus steps 1 and 5), as does "Não é o exit 2". This is noticeably more than minor tightening; not score 1 because there is no padding with concepts Claude already knows.

Actionability

The Invocar block gives the full CLI signature with all flags, and remediation is copy-paste ready ("bob waive <file::function|Target> --reason \"texto de uma linha\"", "bob doctor", "bob check --format both"). Exact report paths (.bob/report.json) and the meaning of each verdict symbol make the guidance fully executable.

Workflow Clarity

The Iterar section is a numbered loop keyed to exit codes, each with an explicit done-condition ("Feito quando o check é reexecutado") and concrete remediation, plus an overall completion criterion ("bob check sai com `0`"). This is a textbook validate→fix→rerun feedback loop.

Progressive Disclosure

A single-file skill with no bundle directories and well-sectioned headers (Quando, Invocar, Exit codes, Ler o JSON, Iterar); all content is appropriately inline. Not 5 because the body slightly exceeds the simple-skill length allowance, carries redundancy that hurts organization, and cites "docs/exit-codes.md#exit-4" which is not part of any bundle.

Specificity

"Rodar `bob check`, ler o JSON e iterar até exit 0" lists several concrete actions (run the CLI, read the JSON verdict, iterate to exit 0), but the remediation half of the loop (fixing gates, waiving mutants) is only implied by "iterar", leaving minor gaps in coverage.

Completeness

Explicitly answers both what ("Rodar `bob check`, ler o JSON e iterar até exit 0") and when ("Use ao verificar um diff, antes de abrir ou atualizar um PR, ou quando um gate falhar") with concrete trigger phrases, matching the top anchor.

Trigger Term Quality

"verificar um diff", "abrir ou atualizar um PR", "quando um gate falhar", plus the command name `bob check`, are phrases a user would naturally say. Missing common synonyms such as quality checks, mutation testing, or coverage terms, so not comprehensive.

Distinctiveness Conflict Risk

Anchored to the `bob` CLI niche with distinct triggers (gates, exit codes, PR verification); it is clearly distinguishable from generic lint/test skills and unlikely to fire for the wrong skill. Voice is third person (infinitives), so no voice penalty applies.