Conciseness

The 47-line body is lean and operational throughout: no explanations of concepts Claude already knows, no padding, and every section (tools, parameter table, security note, workflow, guidelines) carries actionable information — matching the 'every token earns its place' anchor.

Actionability

Copy-paste-ready commands ('tai tool secret_list \"{}\"', 'tai tool secret_read \"{\"name\": \"GITHUB_TOKEN\"}\"') plus a parameter table and a concrete failure path ('If a secret is not found, prompt the user to configure it') cover the common cases exactly as the anchor-5 example requires.

Workflow Clarity

This is a simple, non-destructive, single-purpose skill, and the 'Typical Workflow' section (list, read, use) is unambiguous with a built-in pre-check ('Always call secret_list first to check if a required secret exists') and an explicit not-found recovery path — meeting the simple-skill exception for a 5.

Progressive Disclosure

The skill is self-contained (no references/, scripts/, or assets/ exist) and under 50 lines with well-organized sections and no content that belongs in a separate file, which the rubric's guideline scores as 5.

Specificity

Names the domain and concrete actions ('read API keys, tokens, or other secrets', 'retrieve them securely', 'Never hardcode credentials') but omits capability discovery (listing configured secrets). It sits between anchors 3 and 4, and the second-person phrasing 'when you need to read' incurs the rubric's -1 person penalty, landing at 3.

Completeness

Explicitly answers both 'what' (retrieves user-configured secrets securely; never hardcode) and 'when' with a concrete trigger clause ('ALWAYS invoke this skill when you need to read API keys, tokens, or other secrets'), mirroring the anchor-5 good example.

Trigger Term Quality

'API keys', 'tokens', 'secrets', and 'credentials' are natural terms users would say, matching the anchor-4 example of good coverage with a few natural terms missing (e.g. 'passwords', 'environment variables', 'env vars').

Distinctiveness Conflict Risk

A clear niche (secure secret retrieval) with distinct trigger vocabulary (API keys, tokens, credentials, secrets) and minimal overlap risk with other skills.