Conciseness

The 29-line body is lean and assumes Claude's competence — it gives 'npx tsc --noEmit', 'mvn -q -pl <module> compile', etc. without explaining what typecheckers or build tools are. Every line is instruction; there is no padding to trim, so it fits the top anchor rather than the 'minor instances of over-explanation' of score 4.

Actionability

Fully executable commands are given per ecosystem: 'npx tsc --noEmit', 'npx eslint <changed files>', 'ruff check <path>', 'mypy <path>', 'pytest <specific test file>', 'mvn -q -pl <module> compile ... -Dtest=<ClassName>', './gradlew :<module>:compileJava', plus 'NO_COLOR=1'. Placeholders like <module> are parameters, not pseudocode, and the commands cover the common cases, matching the copy-paste-ready top anchor; score 4 would require minor gaps in command coverage.

Workflow Clarity

The 5-step procedure is clearly sequenced with an explicit validation checkpoint ('Read the output as ground truth. If it reports errors, they are real — do not claim success') and an explicit feedback loop ('Fix the root cause, then re-run the SAME command. Repeat until it passes'), reinforced by the rule 'Only mark a todo completed once its verification command passes'. This matches the top anchor including error-recovery loops; no destructive/batch cap applies since checks are read-only.

Progressive Disclosure

The skill is under 50 lines with a single task and no need for external references; the bundle directories (references/, scripts/, assets/) do not exist, and the body references none. Per the rubric's simple-skill note, well-organized sections (intro, Procedure, Rules) score 5 — the structure is clear and nothing that belongs in a separate file is inlined.

Specificity

The description lists multiple concrete actions — 'running the project's typecheck, build, lint, and targeted tests, then fix and re-run until clean' — covering the full capability surface of the skill with no vague filler. It is not score 4 because coverage is comprehensive for this domain, not just 'several specific actions with minor gaps'.

Completeness

It explicitly answers both questions: what ('verify code changes by running typecheck, build, lint, and targeted tests, then fix and re-run until clean') and when ('Use after editing any source file'). Both are concrete and explicit, matching the top anchor exactly; score 4 would require the 'when' clause to be less specific than it is.

Trigger Term Quality

Natural terms users would actually say are present: 'verify code changes', 'typecheck', 'build', 'lint', 'tests', 'editing any source file'. It is not 5 because a few natural synonyms are missing (e.g. 'run the checks', 'CI', 'run the tests' phrasing), though no jargon-only or generic terms appear, keeping it above 3.

Distinctiveness Conflict Risk

The niche (post-edit verification loop) is distinct from review or test-writing skills, but 'Use after editing any source file' fires on nearly every edit and could overlap with closely related verify/test/debug skills. It is more distinct than score 3 ('could still overlap with similar skills') but not the minimal-conflict clarity of 5.