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 tight, operational skill body: executable code and commands, a full baseline→patch→verify feedback loop with explicit pass criteria, and clean one-level-deep delegation of the browser profiler to a real reference file. The only improvement space is mild cross-section repetition of RAF-control and pseudo-element guidance across Workflow, Good Fix Patterns, and Avoid.
Suggestions
Trim the overlap between Workflow step 3, 'Good Fix Patterns', and 'Avoid': e.g., the RAF-vs-CSS point and the pseudo-element caveat each appear in all three sections; stating each once in the workflow and keeping 'Avoid' for failure modes only would cut tokens without losing guidance.
Consider collapsing the very long leak-hardening bullet list in step 3 into a short 'dispose everything created in the effect' principle plus the 3-4 non-obvious cases (GSAP mutable-object tweens, isDisposed async guards, ref capture in React cleanup), since the rest are instances Claude can derive.
| Dimension | Reasoning | Score |
|---|---|---|
Conciseness | The body is dense and imperative with no conceptual padding — it never explains what animations or libraries are, and edge-case guidance ("If heap APIs return `null`... say so and rely on stable observable counts") is operational rather than filler. However, there is mild redundancy: RAF-loop control, pseudo-element coverage, and heap-counter caveats each restate across the Workflow, "Good Fix Patterns", and "Avoid" sections (e.g., "Direct RAF loop control for WebGL/canvas effects" repeats step 3). Efficient but trimmable, so 4 rather than the every-token-earns-its-place 5; clearly above the noticeably-verbose 2 and 3 anchors. | 4 / 5 |
Actionability | Gives copy-paste-ready artifacts throughout: a concrete CSS pause rule (`animation-play-state: paused !important` with specific selectors), bash gates (`git diff --check`, `npm run lint`, `npm run build`), a complete temporary-index git commit sequence, and numeric targets (`offscreenRunningCount: 0`, IntersectionObserver threshold `0.01`, idle sample "after 10-30 seconds"). Common cases (CSS, canvas/WebGL, leaks, dirty worktree) are each covered with executable guidance. | 5 / 5 |
Workflow Clarity | Seven clearly sequenced steps (inspect → baseline → patch → verify → local checks → commit → report) with a real feedback loop: step 2 captures the baseline, step 4 says "Reload the route and rerun the same top/mid/footer/mobile profiles" with an explicit pass criterion (`offscreenRunningCount: 0`), plus an interaction regression check and fresh-tab console check. Bounded stress testing ("Keep stress tests bounded") and crash-causality discipline add error-recovery guidance matching the anchor-5 checklist pattern. | 5 / 5 |
Progressive Disclosure | SKILL.md stays a well-sectioned overview (Core Rule, Workflow, Good Fix Patterns, Avoid) and delegates the reusable tooling with a clearly signaled one-level-deep pointer: "See `references/browser-profiling.md` for a reusable Codex Browser evaluator" — verified to exist as a real 240-line reference, referenced once, no nested pointers. The 127-line inline workflow is appropriately main-file material; nothing that belongs in a reference is inlined as a wall of text. | 5 / 5 |
Total | 19 / 20 Passed |