Content
56%Weight 40%Scale 1-5Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.
The body delivers highly actionable, executable d3 code with a clear workflow and real validation habits, but it fails as an overview: it inlines hundreds of lines that duplicate its own reference files, explains concepts Claude already knows, and lists asset filenames that don't match the actual bundle. Trimming the body to a pattern index with pointers into references/ would fix its two weakest dimensions at once.
Suggestions
Move the full pattern implementations (chord diagram, heatmap, pie, force-directed network) and the "Scales reference" section into references/d3-patterns.md and references/scale-reference.md, keeping only a one-line-per-pattern index in SKILL.md with pointers to those files.
Fix the asset filenames in the Resources section to match the actual bundle files (chart-template.jsx and interactive-template.jsx, not chart-template.js / interactive-template.js).
Replace the comment-only "Performance optimisation" and "Accessibility" code blocks with either a short bulleted list or concrete code, and drop the Overview paragraph explaining what D3.js is.
| Dimension | Reasoning | Score |
|---|---|---|
Conciseness | The ~820-line body is noticeably verbose: the Overview explains what D3.js is, a full "Scales reference" section re-lists d3's scale API (which Claude already knows), and complete chord/heatmap/pie/force implementations duplicate content that the bundled references/d3-patterns.md and references/scale-reference.md exist to hold. It stays above a 1 because the bulk is substantive, usable code rather than tutorial prose. | 2 / 5 |
Actionability | Mostly executable, copy-paste-ready functions (drawBarChart, drawChordDiagram and drawHeatmap with documented data formats, responsive setup with cleanup, drag handlers, tooltips). Minor gaps keep it from a 5: the line/pie/scatter snippets depend on undefined setup variables, and the "Performance optimisation" block is comment-only with no code. | 4 / 5 |
Workflow Clarity | A clear numbered core workflow (set up d3 → choose integration pattern → structure the code → responsive sizing) with data validation present in every code example ("if (!data || data.length === 0) return") plus a "Common issues and solutions" section for error recovery. No explicit post-render verification checkpoint, so not a 5. | 4 / 5 |
Progressive Disclosure | References are real, one level deep, and listed in a descriptive Resources section, but content that clearly belongs in them — the full scales reference and the chord/heatmap/pie/force pattern implementations — is inlined in the body, duplicating the actual reference files. Additionally, the Resources section lists "chart-template.js" and "interactive-template.js" while the actual asset files are chart-template.jsx and interactive-template.jsx, so the referenced paths don't resolve. | 3 / 5 |
Total | 13 / 20 Passed |