Conciseness

The body is lean and imperative with no explanations of concepts Claude already knows — every section is commands, file paths, or operational notes, matching "Efficient; minor instances of over-explanation that could be trimmed". Not 5 because a few sentences are dispensable (e.g., "Run these after key steps to catch failures early before proceeding to the next stage" and parts of the Notes section restate what the Templates list already implies); not 3 because there is no genuinely unnecessary explanation or padding.

Actionability

Guidance is fully executable: the Minimum End-to-End Example is copy-paste-ready bash (cp -R, sed, swift build, Scripts/compile_and_run.sh) and the validation section gives exact commands (codesign -dv --verbose=4, spctl --assess, stapler validate) covering the common cases. Fits the level-5 anchor "Fully executable; copy-paste ready code or commands; specific examples cover the common cases".

Workflow Clarity

The Two-Step Workflow is clearly sequenced, the Validation Checkpoints section gives explicit validation commands after each risky stage (packaging, signing, notarization/stapling), and the Common Notarization Failures table provides symptom→cause→recovery feedback loops. This matches the level-5 anchor "Clear sequence with explicit validation steps; feedback loops for error recovery".

Progressive Disclosure

The Overview clearly signals one-level-deep references (references/packaging.md and references/release.md, both verified to exist) and the Templates section accurately maps every assets/templates/ file with its purpose. Not 5 because references/scaffold.md exists in the bundle but is never linked from SKILL.md, leaving it undiscoverable, and the notarization failure table is borderline content that could live in the packaging reference; not 3 because the structure and signaling are otherwise good with no inlined content that clearly belongs in a separate file.

Specificity

"Scaffold, build, sign, and package SwiftPM macOS apps" lists several specific concrete actions in a named domain, matching the level-4 anchor ("Lists several specific actions; minor gaps in coverage"). Not 5 because coverage has gaps (notarization, appcast generation, .app bundle creation are handled by the skill but not named); clearly above 3 since more than 1-2 actions are given.

Completeness

The "what" is clear ("Scaffold, build, sign, and package SwiftPM macOS apps without Xcode projects") but there is no "Use when..." clause or equivalent explicit trigger guidance, which the judging guidelines cap at 3. It is not 4 because the "when" is entirely implicit, and not 2 because the "what" is concrete and specific.

Trigger Term Quality

Natural terms users would say are present ("macOS apps", "SwiftPM", "Xcode", "build", "sign", "package"), matching "Good keyword coverage; a few natural terms missing". Not 5 because common variations like "notarize", "notarization", ".app bundle", "dmg", or "Swift package" are absent; above 3 because the core vocabulary is well covered rather than missing common variations.

Distinctiveness Conflict Risk

"SwiftPM macOS apps without Xcode projects" carves out a clear niche with distinct triggers and minimal conflict risk with other skills, matching the level-5 anchor. Neighboring anchor 4 requires "minor overlap risk with closely related skills", which does not fit better since no common skill shares this exact trigger space.