Content
86%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-structured, highly actionable skill body: every recipe ships executable code with stability prerequisites, the library-detection step gives a clear entry point, and detail is correctly pushed to one-level-deep reference files. The remaining gaps are minor: a little redundant framing around known facts and no guidance for recovering from a failed diff or gate.
Suggestions
Trim the 'Per the [X docs]...' framings that restate known facts (Chart.js renders to canvas, D3 generates SVG) — keep only the citations, saving tokens without losing information.
Add a short failure-recovery loop for snapshot diffs and Vega compile failures (e.g., 'if the diff exceeds maxDiffPixels, compare the normalized data assertions before re-baselining') to close the workflow_clarity gap.
Consider adding a line to the References section covering the chartjs-alternative-approaches and *-advanced files' purpose (tooltip/legend interaction, multi-DPI, enter/update/exit) so their content is discoverable from the overview's reference list, not only from section endings.
| Dimension | Reasoning | Score |
|---|---|---|
Conciseness | The body is dense and table-driven, but includes minor over-explanation of things Claude already knows ("Per the [Chart.js docs], Chart.js renders to <canvas>"; "Per the [D3 getting-started docs], D3 generates SVG") plus a short motivational opener — the 4 anchor ('efficient; minor instances of over-explanation'), not the 5 anchor where every token earns its place. | 4 / 5 |
Actionability | Fully executable guidance throughout: jq/grep library-detection commands, a complete Playwright canvas test with waitForFunction and a tolerance comment, a normalizeSvg + toMatchSnapshot test, and a complete Ajv schema + Vega-Lite compile test — copy-paste ready and covering the common cases, matching the 5 anchor. | 5 / 5 |
Workflow Clarity | The sequence (detect family → apply stability rules → wait for render → assert) is clear with validation checkpoints (Vega's three explicit gates, waitForFunction/waitForSelector preconditions), but there is no error-recovery feedback loop for when a diff or gate fails — the 4 anchor ('most checkpoints present; minor validation gaps') fits better than 5. | 4 / 5 |
Progressive Disclosure | The body is a well-organized overview: a family table linking each recipe, per-section "Full depth (...): references/X.md" pointers, and all six referenced files exist exactly one level deep with no nested references — matching the 5 anchor. | 5 / 5 |
Total | 18 / 20 Passed |