Lean and well-sectioned with no padding of concepts Claude already knows (no explanation of what ALFWorld or receptacles are); every section earns its place, fitting the 'every token earns its place' anchor rather than the slightly padded score-2 level.

Gives a concrete executable action (`go to {target_receptacle}`) plus a complete example trace with a real observation ('You are at fridge 1. On the fridge 1, you see nothing.'), meeting the 'fully executable / specific examples' anchor; as an instruction-only skill, executable guidance substitutes for code.

Numbered steps with an explicit arrival-verification checkpoint and a feedback loop on 'Nothing happened' (consult references, reformulate target), satisfying the 'clear sequence with explicit validation and error-recovery' anchor; the single-action task is unambiguous per the simple-skills note.

The body is a concise overview with a single, clearly signaled one-level-deep reference to `references/common_receptacles.md`, which exists in the bundle and is not nested further, matching the 'clear overview with well-signaled one-level-deep references' anchor.

Lists multiple concrete actions in third person ('Plans and executes movement', 'Takes a receptacle identifier as input, executes the `go to` action, and outputs confirmation of arrival'), matching the 'lists multiple specific concrete actions' anchor rather than the partial score-2 anchor.

Explicitly answers both what (plan/execute movement, parse input, run `go to`, confirm arrival) and when via an explicit 'Use when the agent needs to reach a specific location before interacting with objects there' clause, satisfying the top anchor and avoiding the score-2 cap for a missing 'Use when' trigger.

Uses natural trigger phrasings a caller would actually say ('go to fridge to cool an item', 'go to garbagecan to dispose of an item', 'reach a specific location'), giving good coverage rather than the sparse score-2 'some relevant keywords' level.

Scoped to a clear ALFWorld niche (receptacle navigation via `go to`) with distinct, domain-specific triggers, making it unlikely to fire for unrelated skills; not the generic score-2 'works with document files' level.