Conciseness

The body is dense and mostly actionable with exact paths, flags, and naming conventions, and the ⛔ guardrails earn their tokens; it is efficient with only minor over-explanation. It is not a 5 because the multi-branch backend-resolution list and some repeated caveats could be trimmed, and not a 3 because the content is largely necessary domain-specific policy rather than padding.

Actionability

Concrete, executable guidance pervades the body — exact file naming (NN-{type}-{slug}.md), flag syntax (--type/--style/--palette/--preset), path tables, and a numbered 6-step workflow. It is not a 5 because the actual prompt templates and detailed sub-procedures are delegated to references rather than inlined, leaving minor gaps in self-contained executability; not a 3 because what is written is specific and actionable, not pseudocode.

Workflow Clarity

The 6-step workflow is a checklist with explicit blocking validation gates ("⛔ BLOCKING", "Hard gate", prompt-files-must-exist-before-generation), confirmation policy, and feedback loops (retry once on failure, regenerate-from-corrected-prompt for text fixes). This matches the 5 anchor (clear sequence + explicit validation + feedback loops + checklists), and the batch/destructive operation correctly includes validation.

Progressive Disclosure

SKILL.md is a clear overview that signals one-level-deep references via markdown links and a References table (workflow.md, styles.md, style-presets.md, prompt-construction.md, codex-imagegen.md, config/*), and all referenced paths exist as real bundle files. Content is appropriately split (procedures, styles/, palettes/), giving easy navigation matching the 5 anchor.

Specificity

"Analyzes article structure, identifies positions requiring visual aids, generates illustrations with Type × Style × Palette three-dimension approach" names three concrete actions plus the organizing approach, listing several specific actions with only minor coverage gaps. It is not a 3 (only 1–2 actions) nor a 5 (not fully comprehensive — it omits refinement/editing actions covered later in the body).

Completeness

It explicitly answers both what (analyze structure, identify positions, generate illustrations via Type×Style×Palette) and when ("Use when user asks to 'illustrate article'...") with concrete trigger phrases, matching the 5 anchor. It clearly exceeds 4 because the 'when' clause is concrete and explicit rather than weakly implied.

Trigger Term Quality

Includes natural phrases users say — "illustrate article", "add images", "generate images for article", and the Chinese synonym "为文章配图" — giving good keyword coverage with a translated variant. It falls short of 5 because common variations like "配图", "插图", or "add pictures" are absent.

Distinctiveness Conflict Risk

The article-illustration niche with Type×Style×Palette framing is mostly distinct and well-targeted, but generic triggers like "add images" and "generate images" create minor overlap risk with general image-generation skills such as baoyu-image-gen. It is not a 5 because of that residual overlap, and not a 3 because the niche is clearly bounded.