Conciseness

The ~25-line body is lean and assumes Claude's competence, with no explanation of known concepts, matching the 'efficient; minor instances of over-explanation that could be trimmed' anchor. It is not a 5 because the Prerequisites section ('Object in Hand', 'At Cooling Receptacle') is restated in Execution Flow step 1 'Verify State', and the Example from Trajectory largely repeats the execution flow.

Actionability

Guidance is fully executable: the exact command format `cool {obj} with {recep}`, a copy-paste example `cool pot 1 with fridge 1`, literal success/failure observation strings ("You cool the {obj} using the {recep}." / "Nothing happened"), and the next-step command `put {obj} in/on {recep}`. This matches the 'fully executable; copy-paste ready; specific examples cover the common cases' anchor.

Workflow Clarity

For this simple single-action skill the action is unambiguous, and the flow verify-state → execute → verify-outcome includes an explicit validation checkpoint with a feedback loop ("If the observation is 'Nothing happened'... check the prerequisites or try a different receptacle"). Per the simple-skill guideline this merits the top anchor; the operation is neither destructive nor batch.

Progressive Disclosure

The body itself is well-organized into clear sections, but the bundle contains references/action_semantics.md — which holds genuinely useful details (the receptacle need not be open, related actions such as `heat` and `take`) — and the body never references or links to it anywhere. Scoring against the actual bundle structure, this is an orphaned, undiscoverable reference, matching 'references present but not clearly signaled' rather than the 'references mostly clear' anchor above.

Specificity

The description names several concrete actions — "Cools a held object using an appropriate cooling appliance", "Performs the ALFWorld `cool` action", "outputs the cooled object ready for subsequent placement or serving steps" — matching the 'several specific actions; minor gaps' anchor. It is not a 5 because the coverage is narrow and the cooling action is stated repetitively rather than comprehensively.

Completeness

It clearly answers both questions: what it does ("Performs the ALFWorld `cool` action" on a held object using a cooling appliance) and when to use it, via an explicit "Use when the task requires reducing the temperature of an object (e.g., 'cool some pot', 'chill the mug') and the agent is already holding the object" clause with concrete trigger phrases and a precondition. This matches the top anchor exactly.

Trigger Term Quality

It includes natural trigger phrases users would say — "cool some pot", "chill the mug", "fridge or freezer", "reducing the temperature" — giving good keyword coverage with synonyms (cool/chill). It falls short of 5 because common variations such as "make cold" or "freeze" are missing.

Distinctiveness Conflict Risk

The cooling-a-held-object niche is clear and the cool/chill triggers are distinct, but the skill shares the `{obj} with {recep}` action shape with closely related ALFWorld skills (heat, clean) and does not disambiguate against them. This fits 'mostly distinct; minor overlap risk with closely related skills' rather than the minimal-conflict top anchor.