Content
68%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.
A well-organized, executable code-utility skill that assumes competence and stays lean. Its main weakness is workflow clarity: capabilities are listed as a function catalog without an explicit, sequenced usage flow.
Suggestions
Add a short numbered workflow (e.g., 1) describe data + goal, 2) pick a chart type via the selector, 3) call the matching function, 4) verify the output file) to give the catalog a clear usage sequence.
Flesh out the remaining chart types from the enum (heatmap, histogram, box, area, pie, scatter) with the same executable function pattern used for bar/line/dashboard, or explicitly note they rely on the one-liner quick-reference forms.
Trim the inline chart-type-selector Anthropic API block into a smaller helper or move it to a references/ file, keeping the SKILL.md overview focused on the rendering functions.
| Dimension | Reasoning | Score |
|---|---|---|
Conciseness | The body is lean, code-dense, and assumes Claude's competence (no library primers), but the full chart-type-selector API block and the "Includes AI-powered chart type selection" line are minor instances of over-content that could be trimmed. | 4 / 5 |
Actionability | Provides fully executable, copy-paste-ready functions for bar, line, and dashboard charts, but heatmap and histogram appear only as quick-reference one-liners and three of the eight enum chart types lack implementations, leaving minor gaps. | 4 / 5 |
Workflow Clarity | Functions are presented as a catalog rather than a sequenced workflow; the select-chart-type → render order is only implicit and there are no checkpoints or guidance on when to use the AI selector versus calling functions directly. | 3 / 5 |
Progressive Disclosure | No bundle files exist and the body is self-contained with well-organized section headers (Overview, Chart Type Selector, Matplotlib, Plotly, Quick Reference); it inlines full implementations at >50 lines rather than splitting them out, a minor organization gap. | 4 / 5 |
Total | 15 / 20 Passed |