The body is lean and assumes Claude's competence, avoiding explanations of what alfworld or receptacles are; every section (procedure, considerations, example) earns its place. It is not a 2 because there is no padding or unnecessary exposition to tighten.

Provides concrete executable actions ('go to {recep}', 'put {obj} in/on {recep}'), precise observation-parsing rules ('On the {recep}, you see...', 'you see nothing.'), and a complete worked Thought/Action/Observation example. It is not a 2 because the guidance is specific and copy-paste ready rather than pseudocode.

The Core Procedure is a clear 4-step sequence with an explicit error-recovery feedback loop ('If an action fails ("Nothing happened"), re-evaluate your target and try a different receptacle'). It is not a 2 because validation/error checkpoints are explicit rather than implicit.

Under 50 lines with well-organized sections and a single clearly-signaled, one-level-deep reference to references/example_trajectory.md (verified to exist and not nest further). It is not a 2 because content is appropriately split and the reference is clearly navigable.

Names several concrete actions ('Searches for a suitable empty or appropriately occupied receptacle', 'Examines candidate receptacles by navigating to and inspecting each one'), which would warrant a 3, but the trigger clause uses second person ('Use when you are holding an object', 'you must find a receptacle'), which the rubric penalizes by reducing specificity by one. It is not a 1 because the actions are concrete and domain-specific rather than vague.

Explicitly answers what ('Searches for a suitable empty... receptacle to place an object... Examines candidate receptacles') and when ('Use when you are holding an object that needs to be stored or placed and must find a receptacle'). It is not a 2 because the trigger is explicit, not merely implied.

Covers natural terms a user would say in this domain — 'holding an object', 'stored or placed', 'receptacle', 'shelf or table' — giving good coverage of common phrasings. It is not a 2 because it goes beyond a single keyword to multiple natural variations.

Targets a clear alfworld niche (finding an empty/occupied receptacle for a held object) with distinct triggers unlikely to fire for unrelated skills. It is not a 2 because the scope is specific and unlikely to overlap with general placement or cleaning skills.