Conciseness

The body is efficient — tight bullets, an appropriately scoped worked example, and no explanation of basic concepts. The 'Core Strategy' section ('Prioritize Exploration', 'Inspect Before Placing') partially restates the 'Execution Pattern' phases and could be trimmed, matching the 4 anchor's minor instances of over-explanation rather than the 5 anchor's every-token-earns-its-place.

Actionability

Mostly executable guidance: the Example section gives a concrete ALFWorld command sequence ('go to drawer 1', 'open drawer 1', 'put sponge 1 in/on drawer 1') with observations, and Phase 2 gives step-by-step actions. The truncated 'Output Format' section ('Maintain the standard action format:' with no content following) is a minor gap keeping it below the 5 anchor.

Workflow Clarity

A clear three-phase sequence with per-receptacle steps, suitability criteria, decision rules, and an error-recovery loop ('If "Nothing happened"... try alternative locations'). It sits between the 4 anchor (most checkpoints present, minor gaps) and the 5 anchor — the incomplete Output Format section and implicit 'stop exploring' checkpoint keep it at 4.

Progressive Disclosure

The body is well-sectioned and appropriately short, but the bundle file references/storage_heuristics.md — which contains complementary decision factors, an exploration priority matrix, and fallback strategies — is never referenced or linked from SKILL.md. Per the guideline to score against the actual bundle structure, references exist but are not signaled at all, fitting the 3 anchor ('references present but not clearly signaled') rather than the 4 anchor's mostly-clear references.

Specificity

Lists several concrete, domain-specific actions — "explores storage receptacles (drawers, cabinets, shelves)", "Opens, inspects, and closes candidate receptacles", "places the object in the best match" — with minor gaps (e.g., suitability criteria are not named). It exceeds the 3 anchor (only 1-2 actions) but falls short of the 5 anchor's comprehensive coverage.

Completeness

Explicitly answers both: what ("Systematically explores storage receptacles... Opens, inspects, and closes candidate receptacles... then places the object in the best match") and when ("Use when the agent needs to store an item but the exact target receptacle is unknown or ambiguous") with a concrete trigger condition. This matches the 5 anchor; the 4 anchor's 'when could be more explicit' does not apply since the trigger clause is specific.

Trigger Term Quality

Natural trigger terms like "store an item", "drawers, cabinets, shelves", and "unknown or ambiguous" match what a user or agent would say, but common synonyms such as "put away" or "find a place for" are missing. Good coverage with a few natural terms absent fits the 4 anchor, not the 5 anchor's comprehensive synonym coverage.

Distinctiveness Conflict Risk

The embodied-agent storage-exploration niche with terms like "receptacle" and the unknown/ambiguous-target trigger is mostly distinct with only minor overlap risk against generic tidy-up or object-placement skills. It does not reach the 5 anchor's fully clear niche with minimal conflict risk because 'store an item' is a fairly broad trigger phrase.