Conciseness

The body is dense and tool-specific throughout — e.g. "Decompiled Source | Locally reconstructed, lowered C#; not the authored source" teaches the tool's semantics rather than re-explaining decompilation concepts Claude already knows. Every section carries non-obvious guidance with no padding, matching the "lean and efficient; every token earns its place" anchor; no trimmable over-explanation could justify anchor 4.

Actionability

Five complete, copy-paste-ready commands with real arguments (e.g. "dnx dotnet-inspect -y -- member JsonSerializer --platform System.Text.Json Serialize:1 -S \"Decompiled Source,Annotated Source,IL\" --offline") plus lookup tables mapping views and questions to exact entrances. This fully matches the "fully executable; specific examples cover the common cases" anchor.

Workflow Clarity

Sections sequence coherently (choose evidence → drill deeper via --explain/-E → interpret fidelity), with explicit ordering guidance ("Read returned bindings and vocabularies before unfamiliar syntax queries", "Narrow the subject before broad content searches") and outcome-preservation warnings. It is not 5 because checkpoints are advisory rather than explicit validate/fix loops, and not 3 because the skill is read-only inspection (no destructive/batch cap) with a solid, gap-free sequence.

Progressive Disclosure

No bundle files exist; external references are one-level, clearly signaled cross-skill pointers ("Use `skill sourcelink`", "Load `skill relationships`... `skill performance`") and the tool's own -D/-Q discovery is leveraged instead of inlining detail. At ~85 dense lines with some content (the question/entrance table, fidelity details) that could live in reference files, it falls just short of the fully split-structure anchor 5, and the under-50-line simple-skill exception does not apply.

Specificity

The description lists multiple concrete actions with specific output forms — "Read .NET method and type implementations as authored-first source, decompiled C#, annotated source or IL", "interpret reconstruction fidelity", "locate exact code coordinates" — with no vague filler. This matches the anchor for multiple specific concrete actions with comprehensive coverage; anchor 4 would require identifiable coverage gaps, and none are apparent for the skill's core capabilities.

Completeness

The "what" is clear and concrete (read implementations in four evidence forms, interpret fidelity, locate coordinates), but there is no "Use when..." clause or equivalent explicit trigger guidance — "Use --offline to prohibit network acquisition" describes a flag, not when to reach for the skill. Per the judging guidelines, a missing 'Use when' clause caps completeness at 3, and the 'when' is only weakly implied by the domain framing.

Trigger Term Quality

Terms like ".NET", "method and type implementations", "decompiled C#", "IL", and "source" are the natural vocabulary of a user needing this skill, giving good keyword coverage. It falls short of anchor 5 because common variations such as "assembly", "decompiler", or "dotnet" are missing, but it is clearly above anchor 3's "some relevant keywords".

Distinctiveness Conflict Risk

The niche is unmistakable — .NET decompilation, IL inspection, and reconstruction fidelity — with distinct trigger terms that would not plausibly fire a generic or even adjacent skill. Anchor 4's "minor overlap risk with closely related skills" is not a better fit since the described capability set is uniquely identified.