The body is lean and assumes Claude's competence — it does not explain what ALFWorld is or what a fridge is, and each section (workflow, ranking table, examples, error handling) earns its place. It is not level 2 because there is no padded explanation or unnecessary concept coverage to tighten.

It gives executable ALFWorld commands ("go to {receptacle}", "take {object} from {receptacle}", "open {receptacle}") with concrete worked transcripts showing inputs and observations. It is above level 2 because the guidance is copy-paste-ready rather than pseudocode or abstract description.

A clear four-step sequence includes an explicit validation checkpoint (read the observation and check whether the object is mentioned) with a feedback loop (open closed containers and re-check, then move on) plus an error-handling section. It is not capped at 2 because this is a search/navigation task, not a destructive or batch operation, and the checkpoints are explicit rather than implicit.

The body is well-organized with clear sections, but neither bundle reference file (object_mappings.md, skill_usage_examples.md) is linked or signaled from SKILL.md, and the inline object→receptacle table duplicates content that already lives in object_mappings.md. It is not level 3 because references are not clearly signaled and content that exists separately is restated inline; it is above level 1 because the structure is clean with no nested reference chains.

The description lists multiple concrete actions — "parses the environment observation, ranks receptacles by likelihood… using common-sense reasoning, and outputs a navigation action" — matching the anchor for several specific actions. It is not the level below because it does more than name a domain and a single action, and it stays in third-person voice with no fluff.

It explicitly answers both halves: a "Use when…" clause covers when, and "parses… ranks… outputs a navigation action" covers what. It is not level 2 because the when-trigger is explicit, not merely implied.

Phrases like "find a specific object in ALFWorld", "not currently in inventory", and "location is unknown" are natural trigger language an agent would use when it needs this skill. It is above level 2 because the trigger conditions are articulated explicitly and naturally rather than as a single generic keyword.

The skill targets a narrow ALFWorld niche (locating an out-of-inventory object whose location is unknown) with distinct triggers, making it unlikely to fire for unrelated skills. It is above level 2 because the niche is specific rather than overlapping with similar general skills.