Conciseness

The body is a single sentence — "Run a grilling session: call the Skill tool with 'grilling', or, in a harness with no Skill tool, load and follow ~/.agents/skills/grilling/SKILL.md" — with zero padding and no explanation of concepts Claude already knows. Every token earns its place, matching the lean-and-efficient anchor exactly.

Actionability

The guidance is concrete and executable as written: an exact tool invocation ("call the Skill tool with 'grilling'") plus an explicit fallback path. It falls short of fully executable, however, because the entire instruction depends on an external resource that is not part of the bundle and does not resolve in this environment, and no guidance is given for the case where neither the skill nor the path is available.

Workflow Clarity

This is a simple, single-task skill and the single action is unambiguous: invoke the grilling session via one of two clearly differentiated paths (Skill tool if available, else load the named file). The simple-skill exception applies, and there are no destructive or batch operations that would impose a validation cap.

Progressive Disclosure

The reference to the detailed material is clearly signaled and exactly one level deep, which is good structure. It does not reach 5 because the reference points outside the skill's own bundle to a home-directory path (~/.agents/skills/grilling/SKILL.md) that is not part of this skill and does not exist here, leaving the bundle with no content of its own and a non-portable organization gap.

Specificity

"A relentless interview to sharpen a plan or design" names the mechanism ("relentless interview") and one concrete outcome ("sharpen a plan or design"), matching the anchor for domain plus 1-2 concrete actions that are not comprehensive. It is not a 4 because it lists no further specific actions (e.g., probing questions, identifying weaknesses, stress-testing assumptions), and not a 2 because the action verb is concrete rather than generic.

Completeness

The "what" is clearly stated ("A relentless interview to sharpen a plan or design") but there is no "when" guidance at all — no "Use when..." clause or equivalent trigger phrasing. Per the judging guidelines, a missing 'Use when...' clause caps completeness at 3, and the anchor for a clear 'what' with 'when' missing is an exact fit.

Trigger Term Quality

The description contains some relevant natural keywords ("interview", "plan", "design") but is missing common variations users would actually say such as "grill me", "stress test", "poke holes", "critique", or "challenge my assumptions". This matches the anchor for some relevant keywords with missing synonyms; more than "a few" natural terms are absent, so it does not reach 4.

Distinctiveness Conflict Risk

The phrase "interview" risks collision with job-interview-preparation skills, and the broad "plan or design" domain overlaps with plan-review, design-critique, and brainstorming skills. It is somewhat specific — the relentless-interview mechanism is distinctive — but could still overlap with similar skills, matching anchor 3 rather than 4's "minor overlap risk".