Content
92%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 strong, well-engineered skill body: executable code and commands, a workflow with real validation and error-recovery loops, correct progressive disclosure into an existing bundle, and no token waste on concepts Claude already knows. The only weakness is minor redundancy — the app.url fallback chain appears twice and the Config section re-lists keys it defers to assets/config.mjs.
Suggestions
State the app.url fallback chain (environment/.env/3000, localhost semantics) in one place only — Config — and have Workflow step 2 just reference it, trimming a repeated sentence.
In the Config section, either trust the pointer to assets/config.mjs ('the file's comments are the reference for each key') or list the keys, but not both — the inline enumeration of every top-level key duplicates what init-generated config comments already document.
| Dimension | Reasoning | Score |
|---|---|---|
Conciseness | The body is dense and assumes Claude's competence (no concept re-teaching, no library introductions), but the app.url resolution chain ('unset, http://localhost:$PORT from the environment or .env, else 3000') is stated in full twice — in Workflow step 2 and again in Config — and the Config section enumerates every top-level key inline right after deferring to 'the file's comments are the reference for each key'. These are minor instances of duplication that could be trimmed, matching anchor 4 rather than the every-token-earns-its-place anchor 5. | 4 / 5 |
Actionability | Fully executable guidance throughout: a copy-paste-ready Playwright script template, concrete commands ('$SKILL_DIR/scripts/record <name>', the ffmpeg frame-extraction command), the complete lib.mjs API with signatures ('record({ lead })', 'wheel(page, pixels)', 'mark(type, box)'), and named failure artifacts to inspect. Placeholders in the template are necessarily project-specific, which the skill instructs how to resolve ('take them from the project's docs... never guess'). | 5 / 5 |
Workflow Clarity | The four-step Workflow has an explicit validation checkpoint (step 3: extract frames around events and look at them, with the command to do so) and a complete feedback loop in Failures (fail fast with 5s timeout, read failed.json, look at failed.png, fix the script, re-run, 'Never hand over a video from a failed run'). Failure semantics are non-destructive and explicitly stated ('A failed run leaves the previous good video untouched'). | 5 / 5 |
Progressive Disclosure | The body is a clear overview with well-signaled, one-level-deep references, and every referenced bundle file exists: references/init.md (for the init form), scripts/record, scripts/config, and assets/config.mjs (defaults/pace presets). references/init.md does not nest into further .md files, and the lib.mjs API is summarized inline at signature level rather than dumped, keeping detail in the bundle. | 5 / 5 |
Total | 19 / 20 Passed |