Content
78%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.
This is a high-quality, densely informative skill body: executable examples throughout, domain rules Claude cannot derive, and precise silent-failure warnings that make it genuinely actionable. Its weaknesses are mild redundancy, no explicit post-authoring verification step, and a monolithic single-file structure where the chart-type catalog and Vega-Lite conversion guide belong in reference files.
Suggestions
Move the chart-type catalog and/or the full Vega-Lite conversion rules (with the long example) into references/ files linked one level deep, keeping SKILL.md as the overview plus core anatomy.
Deduplicate repeated facts: state 'a component issues exactly one query' and 'prefer defaults over required when evolving' once each.
Add an explicit verification checkpoint at the end of 'Creating a new component', e.g. 'confirm the component renders in a canvas that references it, since a misplaced renderer block silently renders nothing.'
| Dimension | Reasoning | Score |
|---|---|---|
Conciseness | Assumes Claude's competence throughout — no filler about YAML, SQL, or Vega-Lite basics — and nearly every rule is Rill-specific knowledge Claude cannot already have. However, facts repeat ('A component issues exactly one query' appears in both the Vega-Lite rules and metrics_sql rules; 'prefer defaults over required when evolving' appears in both Params and Tips) and a few bullets (e.g. the ORDER BY bullet) run long, keeping it below the leanest anchor. | 4 / 5 |
Actionability | Complete, copy-paste-ready YAML for a full component file, a canvas binding, three chart-spec variants (ranked bar, donut, small multiples), and a full parameterized Vega-Lite spec, plus exact chart-type names, numeric limit defaults per chart shape, and concrete failure modes ('a limit too small for the series fills up on the first category ... and leaves the rest of the chart empty'). This matches the fully-executable anchor covering the common cases. | 5 / 5 |
Workflow Clarity | The body is clearly sequenced (Anatomy, Params, Creating a new component, chart spec, Vega-Lite conversion, metrics_sql rules, Tips) and teaches which failures are loud vs silent (parse-time rejection, reconcile-time binding validation, the empty-render of a misplaced renderer block). It lacks an explicit final validation checkpoint (e.g. 'confirm the component renders in the referencing canvas') and the creation guidance is decision rules rather than an ordered procedure with feedback loops, so it sits at 4 rather than 5; no destructive/batch cap applies. | 4 / 5 |
Progressive Disclosure | Section headers are clear and consistent, but there are no bundle files at all and ~310 lines are fully inlined; the chart-type catalog, the Vega-Lite conversion rules, and the metrics_sql dialect details are each natural candidates for a one-level-deep reference file. This matches the 'content that should be separate is inline' anchor better than the 'most content appropriately placed' anchor, since nothing is split out. | 3 / 5 |
Total | 16 / 20 Passed |