Conciseness

The body is mostly lean and assumes Claude's competence — direct bash/TS snippets with no 'what is a credential' padding — but the 'Credential-home inversion' callout and a few justificatory prose passages ('That inversion is the entire point...', 'It does not remove or rewrite the OneCLI gateway...') could be trimmed. It is above 3 because the bulk is efficient and executable, but below 5 due to these minor over-explanations.

Actionability

Fully executable, copy-paste-ready guidance throughout: exact cp/grep/sed bash, the TS import and one-line reach-in, the .env.example stub, and validate commands (pnpm run build; pnpm exec vitest run ...), covering both subscription and API-key paths. It is not lower because there are no pseudocode or vague steps.

Workflow Clarity

A clear four-phase sequence (Pre-flight, Apply, Configure, Restart/verify) with explicit validation checkpoints — check-already-applied and confirm-seam in Phase 1, 'build must be clean and both tests must pass' in Phase 2, and 'confirm the agent responds' verification in Phase 4 — plus a Troubleshooting feedback section. It is not lower because validation gates and error-recovery guidance are present for the destructive/batch operations.

Progressive Disclosure

The body is well-organized into clear sections and signals one-level references (REMOVE.md, native-credential-proxy.ts, the test files via cp $S/...), but those referenced bundle files are absent from the staged skill directory (references/scripts/assets are empty), so navigation is not actually resolvable. It is not a 4 because the referenced files are missing, and not a 2 because the structure itself is sound and the overview is self-contained.

Specificity

Lists several concrete actions — 'Opt out of the OneCLI gateway', 'supply Anthropic credentials from .env', 'Reads the API key or OAuth token from .env and injects it into the container's API requests' — with only minor coverage gaps (e.g. the gating flag and base URL). It is above the 3 anchor because the action set is multiple and specific rather than just 1-2, but not a 5 since coverage is not comprehensive.

Completeness

The 'what' is clear (opt out of the gateway, supply credentials from .env, inject into container requests), but the 'when' is only weakly implied via 'For users who want simple .env-based credential management' rather than an explicit 'Use when...' trigger clause, which the guidelines say caps completeness at 3. It is not a 4 because no explicit trigger guidance is present.

Trigger Term Quality

Good keyword coverage with natural terms users would say in this domain — 'OneCLI gateway', '.env', 'Anthropic credentials', 'API key', 'OAuth token' — but a few natural variants/synonyms are missing and the phrasing leans technical. It is below 5 because it lacks comprehensive synonym coverage, and above 3 because the terms are relevant and fairly natural.

Distinctiveness Conflict Risk

It occupies a clear niche — opting out of the NanoClaw OneCLI gateway in favor of .env credentials — with distinct triggers and minimal overlap risk with other skills. It is not lower because the scope is sharply specific and unlikely to fire for an unrelated skill.