Conciseness

The body is lean and assumption-free about concepts Claude already knows, and the dense 0.2.x/0.3.x bullets are all novel version-specific behavior that earns its tokens. It is not a 5 because the routing is stated three times (the "UTILITY SKILL — INVOKES" line, the Routing table, and the Examples section all restate the same two-way mapping), which could be consolidated.

Actionability

Concrete, executable elements abound: a routing table with real file links, example utterances mapped to sub-skills, copy-paste `npx skills add` commands, and very specific version-dependent rules ("every mock `resource {}` block ... must declare `attrs` or `prior_attrs`"). It is not a 5 because the first instruction — "check the installed `tfpolicy` CLI version" — gives no command for how to check it, leaving the entry-point action underspecified.

Workflow Clarity

The sequence is explicit and correctly ordered ("Before giving authoring or testing instructions, check the installed `tfpolicy` CLI version"), each task routes unambiguously via the table, and the unknown-version branch has a defined fallback ("ask the user to check it first or provide guidance that clearly distinguishes the paths"). This is a single-purpose routing skill with no risky operations, so no validation checkpoints are required.

Progressive Disclosure

The body is a true overview with well-signaled, verified one-level links (references/tfpolicy-author.md, references/tfpolicy-test.md, including anchor links), and the detailed material is appropriately split into those files. It is not a 5 because the third bundle file, verified-syntax.md (the declared "source of truth"), is not surfaced from SKILL.md at all — it is only reachable two levels deep through the sub-skills, leaving the router unaware of it.

Specificity

"Write, test, or convert Terraform Policy files (.policy.hcl, .policytest.hcl, Sentinel→tfpolicy)" names the domain, three concrete actions, and exact file extensions, but omits capabilities the body itself advertises ("Writing or debugging a .policytest.hcl test file", "Migrating a Sentinel policy library"), so coverage has minor gaps. It is not a 3 because more than 1-2 concrete actions with full file-format detail are stated.

Completeness

The "what" is explicit ("Write, test, or convert Terraform Policy files") and the "when" is explicit via a dedicated concrete trigger list ("Triggers: policy.hcl, policytest, convert sentinel, tfpolicy, write a policy"), matching the anchor for both what and when with concrete trigger phrases. Voice is impersonal/imperative, so no person penalty applies.

Trigger Term Quality

"Triggers: policy.hcl, policytest, convert sentinel, tfpolicy, write a policy" gives good natural-phrase and extension coverage ("write a policy", "convert sentinel" read like user utterances), but misses common synonyms such as "migrate sentinel", "policy test", and the bare phrase "terraform policy". Not a 5 because several natural variations users would say are absent; well above a 3 because both extensions and natural phrases are present.

Distinctiveness Conflict Risk

"Terraform Policy files (.policy.hcl, .policytest.hcl, Sentinel→tfpolicy)" carves a clear niche with distinct trigger tokens (tfpolicy, policytest, sentinel) and minimal overlap risk; the body further disambiguates against .tftest.hcl and general HCL work. It fits the clear-niche/minimal-conflict anchor better than the minor-overlap anchor.