Conciseness

The body is mostly efficient — commands, a checklist, and a rationale for the relocation pre-step that carries repo-specific context Claude would not know. It falls short of anchor 5 because the 70-line before/after example is longer than needed to convey the transformation, and the "Using with Claude" section repeats trigger phrases already in the description.

Actionability

Fully executable end-to-end: exact install command ("pip install pyyaml"), copy-paste invocation with the script path and --dry-run flag, an explicit before/after YAML example, and a concrete numbered post-inference checklist (update TODO descriptions, add enums, refine required, run api-spec-validator). This matches anchor 5 — copy-paste ready commands covering the common cases.

Workflow Clarity

For a batch operation that modifies spec files, the sequence includes explicit checkpoints: preview via --dry-run before applying, an automatic backup on apply, and post-run validation delegated to the api-spec-validator skill, plus a review checklist. This matches anchor 5's clear sequence with explicit validation steps; it is not anchor 4 because no checkpoint is merely implicit.

Progressive Disclosure

The ~160-line body is well-sectioned and the script is referenced one level deep ("skills/api-schema-inferrer/scripts/infer_schemas.py"). However, the bundle contains references/example-missing-schemas.yaml which is never mentioned or linked from SKILL.md, so navigation to that resource is missing — matching anchor 4 (good structure, minor organization gaps) rather than 5.

Specificity

The description names the domain ("OpenAPI/OAS specifications") and actions ("inferring, generating, or adding schemas"), but these are near-synonyms of a single operation rather than several distinct capabilities, and the verbs are framed as triggers rather than a capability statement. It matches anchor 3 (domain plus 1-2 concrete actions) rather than anchor 4, which expects several distinct specific actions.

Completeness

The 'when' is fully explicit ("This skill should be used when the user asks to..." with concrete trigger phrases) and the 'what' is stated ("inferring, generating, or adding schemas to OpenAPI/OAS specifications that have examples but missing schema definitions"), but the what is embedded inside the when-clause instead of leading as a capability statement. This sits between anchor 4 and 5, closer to 4 since the what is not independently framed.

Trigger Term Quality

Quotes natural user phrases — "infer schemas", "generate schemas from examples", "add schemas", "bootstrap schemas" — plus OpenAPI/OAS terminology. It falls short of anchor 5 because common synonyms and extensions users say ("spec", ".yaml", ".json", "schema definitions") are only partially covered.

Distinctiveness Conflict Risk

The OpenAPI/OAS qualification gives it a clear niche that distinguishes it from generic file or document skills, and the trigger phrases are specific. Minor overlap risk remains with schema-adjacent requests (JSON Schema, Zod, database schemas) since bare "schemas" is broad — matching anchor 4 rather than 5.