Conciseness

The body is ~20 lean lines with no padding and no explanation of concepts Claude already knows; every section (When to Use, Procedure, failure note, Example) earns its place, matching 'Lean and efficient; assumes Claude's competence'. It is clearly above anchor 4, which allows minor over-explanation — there is none.

Actionability

Concrete, copy-paste-ready commands are given (`focus on <TARGET_OBJECT>`, `look around`) plus a fully worked example with real values ("63 > 50 is true → target is red box", "Execute: `focus on red box`"), matching 'Fully executable; copy-paste ready code or commands; specific examples cover the common cases'.

Workflow Clarity

The 4-step procedure has an explicit validation step ("Verify: Confirm the focus action succeeded before proceeding") and a feedback loop for error recovery ("If the focus action fails (e.g., object not found), use `look around` to verify the target object name"), matching the anchor 5 example's structure. The operation is not destructive or batch, so no cap applies.

Progressive Disclosure

The body itself is well organized, but the bundle contains references/action_primer.md — a relevant action reference — that is never mentioned or linked anywhere in SKILL.md, matching 'Some structure but could be better organized; references present but not clearly signaled'. It is not anchor 4 because an existing bundle file is completely orphaned from the entry point; it is above anchor 2 because the inline content is short, structured, and nothing is improperly inlined.

Specificity

The description names the domain (conditional evaluation of measurements) and one concrete action ("Executes a 'focus on OBJ' action on a specific object"), matching the anchor 'Names domain and 1-2 concrete actions, but not comprehensive'. It stays at a single action rather than listing several specific capabilities, so it does not reach anchor 4, and it is far more concrete than the generic anchor 2.

Completeness

It explicitly answers both: what ("Executes a 'focus on OBJ' action on a specific object based on the outcome of a prior conditional evaluation") and when ("Use when you have a measurement result and task instructions specify focusing on different objects (e.g., colored boxes) depending on whether the result meets a threshold"), with concrete trigger conditions — the anchor 5 pattern. Not anchor 4 because the 'when' clause is already explicit and specific.

Trigger Term Quality

Phrases like "measurement result", "threshold", "focus on", and "colored boxes" give good natural keyword coverage, matching 'Good keyword coverage; a few natural terms missing'. It misses common variations users would say (e.g., temperature, pH, mass, 'if/otherwise'), keeping it below anchor 5.

Distinctiveness Conflict Risk

The niche is distinct (conditional focus-on-object after a measurement) with low overlap risk, matching 'Mostly distinct; minor overlap risk with closely related skills'. It is not a 5 because the description alone never names the ScienceWorld environment, so it could overlap with other measurement/threshold-conditional skills.