Conciseness

The body is dense with model-specific facts Claude would not know ("120B-total / 12B-active hybrid Mamba-Transformer LatentMoE", token budgets, exact contradiction locations) and contains no generic-knowledge padding, fitting the 'efficient; minor instances that could be trimmed' anchor. The trimming opportunity: the SFT → RLVR → teachers → MOPD → MTP-boosting order is restated three times (overview bullets, 'What makes Super 3.5 different' #3, and 'Answering rules'), which keeps it below the lean score-5 anchor without dropping to score 3, since each restatement is short and no unnecessary explanations exist.

Actionability

For an instruction-only knowledge skill the guidance is fully concrete and covers common cases: a named Locate → Retrieve → Cite workflow, an 18-row routing table mapping question types to exact files, an explicit source-priority order, worked citation examples ("paper/rl/mopd.md → Phases"), and exact handoff paths (recipes/overview.md, /nemotron-customize). Per the rubric's scoring note, absence of code is not penalized in an instruction-only skill when guidance is this actionable.

Workflow Clarity

The multi-step process is clearly sequenced with checkpoints: ordered reading (INDEX.md → quick-reference → smallest detailed file), a routing-table checklist, a fallback for unlisted questions, conflict resolution via source priority, a mandatory citation step, and a caveats checklist for handling the report's self-contradictions. It is not score 4 because no validation gap can be identified — every branch (unmatched question, conflicting sources, contradictory numbers, synthesis across files) has an explicit handling rule, and no destructive/batch operations exist that would demand feedback loops.

Progressive Disclosure

The structure is exemplary progressive disclosure: SKILL.md is purely an overview/index, and every detail lives in clearly signaled one-level-deep references (paper/*.md, model-card.md, context/quick-reference.md, recipes/*.md) reached via the routing table. It falls short of the score-5 anchor only because none of the referenced bundle files (INDEX.md, paper/ files, model-card.md, recipes/*.md) exist in the provided references/, scripts/, or assets/ directories, so the navigation targets cannot be verified — a minor organization gap rather than the structural problems of the score-3 anchor.

Specificity

The description enumerates eleven concrete coverage areas — "vision-language architecture, MTP, distillation pretraining from Ultra 3 Base, Indic CPT, SFT, RLVR, specialist teachers, two-phase MOPD, MTP boosting, NVFP4 quantization, and inference" — comprehensively matching the skill's stated scope with no visible gaps, which fits the 'multiple specific concrete actions; comprehensive coverage' anchor rather than the score-4 anchor that requires minor gaps.

Completeness

Both halves are explicit: the 'what' is "Reference desk for NVIDIA Nemotron 3.5 Super (120B-A12B), covering [specific list]" and the 'when' is the concrete trigger clause "Use when the user asks facts about Super 3.5 rather than building a pipeline", which also sharpens scope by contrast — matching the anchor requiring both what and when with concrete trigger phrases.

Trigger Term Quality

Strong natural terms users of this model would say: "NVIDIA Nemotron 3.5 Super", "Super 3.5", "MTP", "MOPD", "NVFP4", "quantization", "inference", "facts about Super 3.5". It is not a 5 because a few natural phrases the body actually covers are missing, e.g. "benchmark"/"evaluation" results, the checkpoint name Nemotron-3.5-Super-VL, and "model card", which users asking about the release would likely say.

Distinctiveness Conflict Risk

It carves a clear niche (facts about this one specific model) with distinct triggers ("Super 3.5"), and the "rather than building a pipeline" clause explicitly deflects build/recipe and customization requests to other skills, leaving minimal conflict risk; adjacent models (Ultra, Lightning) are only mentioned as context, not as triggers.