Content
92%Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.
A well-engineered skill body: concrete executable code for every step, a clearly sequenced workflow with a verification gate and demonstrated feedback loop, and clean one-level progressive disclosure into a real advanced-tests reference. The main weakness is conciseness — the SVG-not-Canvas premise and doc citations are repeated across the intro, Steps 2/5, and References.
Suggestions
Deduplicate the SVG-not-Canvas premise (already in the frontmatter) so the body intro does not restate it.
Consolidate the three 'Per the D3 getting-started docs' citations into one and drop the tangential Step 2 'Per [Chart.js docs] equivalent works for D3 too' aside, since the D3-specific toHaveScreenshot example stands on its own.
| Dimension | Reasoning | Score |
|---|---|---|
Conciseness | Mostly efficient and code-dense, but not every token earns its place: the SVG-not-Canvas premise is restated from the frontmatter in the body intro, the 'D3 getting-started docs' citation is repeated three times (intro, Step 5, References), and the Step 2 'Per [Chart.js docs] equivalent works for D3 too' aside is tangential. Tightening these would reach a 3. | 2 / 3 |
Actionability | Provides fully executable, copy-paste-ready code: normalizeSvg regex, the transition identity swap, Playwright outerHTML/toHaveScreenshot tests, the per-element data-binding assertion, and a jsdom unit test, each with concrete selectors and assertions. | 3 / 3 |
Workflow Clarity | 'How to use' lays out a numbered 7-step sequence with explicit Step cross-references, Step 7 names 'run the whole suite as a gate' as verification, and the Worked example demonstrates a feedback loop (the outerHTML diff flags a missing <g> before shipping); the anti-patterns table doubles as a checklist. | 3 / 3 |
Progressive Disclosure | The spine keeps the five core steps inline and pushes the deepest patterns (update join enter/update/exit, SVG a11y metadata) to a single one-level-deep, clearly signaled reference at references/advanced-tests.md (verified to exist), with a tidy References section listing related skills. | 3 / 3 |
Total | 11 / 12 Passed |