Conciseness

The 'Strong Opinions' bullets ("ALWAYS apply scale and rotation before export. No exceptions.") and 'Battle Scars' encode real production signal efficiently, but substantial padding remains: the persona sections ('I'm a battle-hardered 3D artist...', 'Years Experience: 12') and the 'Expertise Areas' list restate the description without adding instruction. This sits at anchor 3 ('mostly efficient but includes some unnecessary explanation') rather than 2, since the padding is confined to identifiable sections and the core rules are tight.

Actionability

Concrete guidance exists — the per-task routing ('For Creation: Always consult references/patterns.md', 'For Diagnosis: ... references/sharp_edges.md', 'For Review: ... references/validations.md') and specific rules like 'UV islands should follow the silhouette' — but the body contains no executable steps, commands, or examples of its own, and the mandated diagnosis route points at references/sharp_edges.md, which is an empty 27-byte file containing only a title. This matches anchor 3 (some concrete guidance, incomplete); it is not anchor 4 because a required reference is effectively content-free.

Workflow Clarity

The task-type-to-reference mapping (Creation -> patterns.md, Diagnosis -> sharp_edges.md, Review -> validations.md) is a clear categorization, but no sequenced workflow or validation checkpoints appear in the body; validation is only implicit through delegation to validations.md. This matches anchor 3 ('sequence present but checkpoints missing or implicit') — above anchor 2 because the routing is unambiguous, below anchor 4 because there is no step ordering or verify/fix/retry loop.

Progressive Disclosure

Scored against the actual bundle: SKILL.md is an overview that clearly signals three one-level-deep references by purpose, and references/patterns.md (1030 lines) and references/validations.md (584 lines) contain the bulk detail — a good split matching anchor 4. It falls short of anchor 5 because references/sharp_edges.md is an empty stub, so one of the three advertised navigation targets contains no content.

Specificity

The description enumerates concrete sub-domains ("retopology, LOD systems, and export pipelines", "UV mapping", "DCC tool workflows (Blender, Maya, ZBrush, 3ds Max, Houdini)") but frames everything as "deep knowledge of" rather than actions, and pads with the fluff sentence "This skill represents years of production experience distilled into actionable guidance". It matches anchor 3 (domain plus a couple of concrete items) better than anchor 4 because no concrete actions or verbs are stated, and better than anchor 2 because the enumerated coverage is specific and broad.

Completeness

Both parts are present: the 'what' ("Expert 3D modeling specialist with deep knowledge of topology, UV mapping, ...") and an explicit 'when' with concrete trigger phrases ("Use when '3d model, 3d modeling, mesh topology, ...' mentioned"). It falls short of anchor 5 because the 'what' is framed as identity/knowledge rather than concrete actions and is diluted by a pure-fluff sentence; it clearly exceeds anchor 3 since the 'when' is fully explicit.

Trigger Term Quality

The explicit "Use when ... mentioned" clause comprehensively covers natural terms with synonyms ("retopology, retopo", "subdivision, subdiv", "low poly, high poly"), tool names ("zbrush, blender modeling, maya modeling, 3ds max"), pipeline phrases ("high to low", "game ready mesh", "texel density"), and file formats ("fbx export, gltf export"). This matches anchor 5's 'comprehensive coverage including synonyms and file extensions'; anchor 4 would require noticeably missing natural terms, and none are evident.

Distinctiveness Conflict Risk

The skill occupies a clear niche (3D modeling pipelines) with distinct triggers like "retopology", "edge flow", and "uv unwrap". Minor overlap risk remains from overly broad bare terms in the trigger list ("3d", "modeling", "topology", "uv", "blender", "vfx") that could fire for adjacent texturing, sculpting, or rendering skills — matching anchor 4 ('mostly distinct; minor overlap risk') rather than anchor 5's minimal-conflict profile.