Conciseness

The body is lean throughout: no explanation of what linting or the tools are, executable code without padding, and it assumes Claude's competence. The one-line intro slightly echoes the description but is negligible, so it fits "every token earns its place" rather than the minor-trimming anchor at 4.

Actionability

Both bash blocks are copy-paste ready and complete (git diff against main with grep filters, per-file loops with existence guards, shellcheck -f gcc, actionlint) and cover the common cases. It is not 4 because there are no executability gaps.

Workflow Clarity

The sequence is clear (find changed files, run each linter, handle issues, report) with an explicit issue-handling protocol, but there is no explicit re-run/verify-clean checkpoint after fixes. It is not 5 because verification of fixes is only implicit; not 3 because this is a simple, non-destructive single-purpose skill and the cap for batch/destructive operations without validation does not apply.

Progressive Disclosure

This is a short single-file skill with clear section headers and no external references needed, so the rubric's simple-skill exception applies: well-organized sections alone warrant the top score. No bundle files exist to verify, and none are needed.

Specificity

"Run shellcheck and actionlint on shell scripts and GitHub Actions workflows" names two concrete tools and their exact target types, which is the complete capability set of the skill with no coverage gaps. It is not 4 because nothing in the skill's scope is omitted, and not lower because the actions are fully concrete rather than generic.

Completeness

It explicitly answers both "what" (run two named linters on two named target types) and "when" with concrete trigger phrases ("Use before pushing or when fixing lint issues"). It is not 4 because the "when" clause is already explicit and specific, matching the top anchor's structure.

Trigger Term Quality

Natural terms users would say are present ("shellcheck", "actionlint", "shell scripts", "GitHub Actions workflows", "lint issues", "before pushing"), but common synonyms like "bash", ".sh", "CI", or "yaml" are missing. This matches the anchor for good coverage with a few natural terms missing rather than comprehensive synonym coverage.

Distinctiveness Conflict Risk

The named tools create a clear niche with distinct triggers and minimal conflict risk against generic lint or format skills. It is not 4 because no closely related skill would naturally trigger on these specific tool and target terms.