Content
75%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 dense, well-sequenced skill body built almost entirely of non-obvious, environment-specific rules and executable templates, with a properly structured three-file reference layer. The gaps are incremental: one skeletal template, no verification checkpoints in the render flow, and some content duplicated between body and references.
Suggestions
Make the Step 6 interactive-explainer template fully executable — replace the '// slider logic, chart rendering' stub with a working initChart() body (e.g., the compound-interest calculation the surrounding markup implies) so all three templates are copy-paste ready.
Move the full Step 4 Chart.js template's shared boilerplate into references/chart_js.md and keep only the load-ordering pattern plus rules in the body, cutting the body/reference duplication and shrinking the SKILL.md token footprint.
Promote the dark-mode 'mental test' and the SVG viewBox safety checks into a short pre-render checklist at the end of Step 2 or Step 3, giving the workflow an explicit verification checkpoint before show_widget is called.
| Dimension | Reasoning | Score |
|---|---|---|
Conciseness | Nearly every line carries host-specific knowledge Claude cannot know (CSP CDN allowlist, CSS variables, streaming-safe tag order, 680px viewBox, sendPrompt). Minor trimming is possible: the intro paragraph about the guidelines being 'the actual Anthropic... design rules, extracted so you can produce high-quality widgets' is context padding, and the ~55-line Chart.js template in Step 4 duplicates the setup already in references/chart_js.md. | 4 / 5 |
Actionability | Steps 4 and 5 are copy-paste-ready, fully executable templates with real CDN URLs and concrete rules (viewBox 680, px sizes, border-radius variables), and the show_widget parameter table is complete. However, Step 6's explainer template ships a stub script ('// slider logic, chart rendering, sendPrompt() for follow-ups'), so one of the three templates is not executable as-is. | 4 / 5 |
Workflow Clarity | Steps 1–7 form a clear sequence (pick type → build → render → respond) with an explicit verb-based routing table up front. No validation checkpoints exist, but the operations are non-destructive widget renders, so the destructive/batch cap does not apply; a pre-render checklist (e.g., the dark-mode 'mental test' promoted into the build step) would reach anchor 5. | 4 / 5 |
Progressive Disclosure | Three real, one-level-deep reference files (design_system.md, svg_and_diagrams.md, chart_js.md — all present and matching their one-line descriptions) with a clear 'Read the relevant reference file when you need...' cue. The 12KB body still inlines substantial reference-grade detail (the full Chart.js template, the complete CSS variable listing) that is also expanded in the references, keeping it just short of the 'appropriately split' anchor. | 4 / 5 |
Total | 16 / 20 Passed |