Content
85%Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.
The body is a concise, well-sequenced migration guide with concrete code templates and a verification checklist, structured cleanly with one-level-deep external references. Its main weakness is actionability: several code blocks contain placeholders or reference undefined fields that prevent them from being fully executable.
Suggestions
Replace the `html\`...\`` placeholder with a minimal concrete template (or explicitly justify the omission) so the DEFAULT_VIEW example is executable.
Define or annotate this.viewInput and this.viewOutput so the performUpdate override reads as complete rather than referencing undeclared members.
Consider moving the widget-framework rules detail into a bundled reference file under references/ and linking to it, now that the skill already points outside its own bundle for ../ui-widgets/SKILL.md.
| Dimension | Reasoning | Score |
|---|---|---|
Conciseness | The body is lean and code-forward, assuming Claude's competence without explaining what UI.Widget or Lit are; the brief intro and section prose each earn their place. | 3 / 3 |
Actionability | It supplies concrete TypeScript templates (DEFAULT_VIEW, INJECT constructor, performUpdate override, devtools-widget), but placeholders like `html\`...\`` and undefined this.viewInput/this.viewOutput leave key details missing, so it is not fully copy-paste ready. | 2 / 3 |
Workflow Clarity | The three numbered guidelines give a clear sequence, and the closing 'Mental Audit' checklist plus the CRITICAL screenshot-golden rule provide explicit verification checkpoints including 'Does the code compile and do tests pass?' | 3 / 3 |
Progressive Disclosure | No bundle files exist, so the score rests on organization: content is split into well-signaled sections with one-level-deep references (../ui-widgets/SKILL.md, docs/ui_engineering.md) rather than a monolithic wall of text. | 3 / 3 |
Total | 11 / 12 Passed |