Conciseness

The body is efficient — it never explains what ALFWorld is or how agents work, and every section carries operational content (trigger, parse rules, category definitions, output format, worked example). Minor trimmable padding remains, e.g., the 'Primary Objective' section restates the frontmatter description ('systematically identify and catalog all objects and receptacles'), which fits the level-4 'minor instances of over-explanation' anchor rather than the fully lean level 5.

Actionability

Guidance is concrete and executable: an exact output template ('Scan Complete. Receptacles: [list]. Objects: [list].'), a fully worked example with exact entity names, naming-convention details ('armchair 2', 'diningtable 1'), and the literal action 'go to sofa 1'. Per the rubric's instruction-skill note, absence of code is not penalized. It sits at level 4 rather than 5 because parsing edge cases are only gestured at ('Some entities (like `ottoman`) can be both depending on context') without concrete handling rules, a minor gap.

Workflow Clarity

The workflow is a clearly numbered sequence (Trigger → Parse & Extract → Categorize → Output Structured Mental Map) with unambiguous execution rules: exactly one 'go to' action, no looping, and explicit integration guidance for downstream planning. This is a simple single-purpose skill under 50 lines with no destructive or batch operations, so the simple-skill exception applies and the unambiguous single action merits 5; the anti-drift check confirms level 4's 'minor validation gaps' language does not fit better since no validation is needed here.

Progressive Disclosure

The body is short and cleanly sectioned (Core Workflow, Execution Rules, Example from Trajectory) with nothing inlined that belongs in a separate file. However, the bundle's one reference file — references/alfworld_actions_guide.md, which contains the observation semantics ('On the {recep}, you see...', 'Nothing happened.') this skill depends on — is never linked or mentioned, so navigation to the bundle is a clear miss. That matches level 4 ('good structure... minor organization gaps') rather than 5, whose anchor requires well-signaled one-level-deep references.

Specificity

The description names several concrete actions — 'Performs an initial scan', 'identify all visible objects and receptacles', 'Processes raw observation text into a structured list of entities, categorizing them as objects or receptacles' — in third person, with only minor coverage gaps (e.g., the culminating `go to` action is unstated). This matches the 'several specific actions; minor gaps' anchor; it is not 5 because the action list stops short of full coverage of the skill's behavior, and not 3 because it goes well beyond 1-2 actions.

Completeness

Both halves are explicit: the 'what' ('Performs an initial scan... to identify all visible objects and receptacles... Processes raw observation text into a structured list') and the 'when' ('Use when you first enter an environment and need to build a mental map for task planning'). The 'when' clause is present but could be more concrete — e.g., quoting the actual initial-observation trigger — so it matches the level-4 anchor ('when' could be more explicit) rather than the fully concrete level-5 example, and clearly exceeds level 3 where 'when' is missing or only implied.

Trigger Term Quality

It includes good natural keywords — 'initial scan', 'first enter an environment', 'build a mental map', 'task planning', 'observation text' — that a user would plausibly say, though common variations like 'initial observation', 'look around', or the literal simulator phrasing ('Looking quickly around you') are missing. This fits the 'good keyword coverage; a few natural terms missing' anchor rather than the comprehensive-with-synonyms level 5, and is well above the sparse keyword levels 2-3.

Distinctiveness Conflict Risk

The 'ALFWorld environment' framing carves out a clear niche with a distinct situational trigger ('first enter an environment'), giving minimal conflict risk with any generic or non-ALFWorld skill, matching the level-5 anchor. It does not quite read as generic at level 3-4, since the domain and the scan-on-entry trigger are both specific.