Conciseness

Rules are stated densely with specific thresholds ('Never nest more than 2 levels deep', 'Aim for 3 or fewer arguments', '15-25 lines') rather than padded prose. A few rules restate knowledge Claude already has (early returns, magic numbers, enumerate/zip, pathlib), which is minor over-explanation — anchor 4, not 5.

Actionability

Every rule is concrete and checkable, with executable good/bad code examples (get_active_users, resolve_setting, comprehension patterns) covering the common cases. This matches anchor 5: copy-paste-ready, specific examples throughout.

Workflow Clarity

This is a single-purpose ruleset skill: the one action — apply these rules when writing, reviewing, or refactoring Python — is unambiguous, and there are no destructive or batch operations requiring validation checkpoints. Under the simple-skill exception the unambiguous single action scores 5.

Progressive Disclosure

Well-organized numbered sections with a clear general-rules/Python-specific split, but the ~210-line body keeps everything inline in SKILL.md. Beyond the under-50-lines bar for a 5, and the extended formatter/comprehension examples could reasonably live in a reference file — matching anchor 4 ('good structure; most content appropriately placed') rather than 2's clearly-misplaced inlining.

Specificity

'Enforces short functions, flat control flow, clear naming, readable structure, and Pythonic idioms' lists several specific capability areas with only minor gaps (e.g., it never says what output a review produces). It is more comprehensive than anchor 3 but falls short of anchor 5's full concrete action inventory.

Completeness

The 'what' is explicit ('Readable Python code rules... Enforces short functions, flat control flow, clear naming, readable structure, and Pythonic idioms') and the 'when' is an explicit 'Use when writing, reviewing, or refactoring Python code' clause with concrete trigger phrases. Both halves are clearly and explicitly answered, matching anchor 5 rather than 4 where the when-clause could be more specific.

Trigger Term Quality

'Use when writing, reviewing, or refactoring Python code' provides natural phrases users would say, and 'Readable Python code rules' names the domain directly. Common synonyms like 'clean code', 'code smells', 'PEP 8', or 'readability' are missing, so it matches anchor 4 rather than 5.

Distinctiveness Conflict Risk

The trigger 'writing, reviewing, or refactoring Python code' fires on essentially any Python task, creating real overlap risk with general Python style, linting, and code-review skills. It is more specific than anchor 2's 'Helps with document files' but only somewhat distinct, matching anchor 3.