Conciseness

77 lean, prescriptive lines with no padding of known concepts — rules like 'streamingForward(...) is unsupported; score complete outputs instead' and 'Do not add DSPy-style hint_ signature fields' earn their tokens; 'Higher is better' is a needed convention statement, not over-explanation.

Actionability

Two complete, copy-paste-ready TypeScript examples with real options (n, threshold, rewardFn, rounds, samplesPerRound), a concrete reward function, and exact API behaviors (getAttempts(), addStreamingAssert(fieldName, fn, message?)) covering the common cases — matching the fully-executable anchor.

Workflow Clarity

The opening decision rule ('Use bestOfN(...) when you can score complete outputs independently. Use refine(...) when failed rounds should produce feedback') is unambiguous and retry/feedback behavior is described, but no explicit ordered setup sequence (choose strategy, write rewardFn, add asserts) is given — clear guidance with minor sequencing gaps rather than explicit checkpoints.

Progressive Disclosure

No bundle files exist and the body is well-organized into seven clearly labeled sections with all content appropriately inline; at ~77 lines it exceeds the under-50-line simple-skill exception for a 5, so 'good structure; most content appropriately placed' (anchor 4) is the best fit.

Specificity

Enumerates seven concrete capability items — 'bestOfN/refine code, reward functions, thresholds, native sample selection, serial attempts, generated advice, and attempt diagnostics' — with comprehensive coverage and no visible gaps, matching the score-5 anchor.

Completeness

The 'when' is explicit and specific ('Use this skill when writing or reviewing...'), but the 'what' is only implied by the enumerated scope rather than stated as a standalone capability, which matches anchor 4 ('both present; could be more explicit') rather than anchor 5's clearly explicit both.

Trigger Term Quality

'bestOfN', 'refine', and 'reward functions' are natural terms an Ax user would say, but phrases like 'native sample selection' and 'attempt diagnostics' are framework jargon and no synonyms or variations (retry, sampling, scoring) are included, so it fits 'good keyword coverage; a few natural terms missing' rather than comprehensive coverage.

Distinctiveness Conflict Risk

'Ax bestOfN/refine' is a clear niche, but generic terms like 'reward functions', 'thresholds', and 'generated advice' could overlap with optimization or eval skills for other frameworks, fitting 'mostly distinct; minor overlap risk'.