Content
87%Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.
The content is a lean, well-organized ruleset with executable examples and specific thresholds, scoring high on conciseness, actionability, and structure. The only gap is workflow clarity: the review workflow is sequenced by priority but lacks an explicit validation/verify checkpoint, which caps it at 2.
Suggestions
Add an explicit verification step to the review workflow (e.g., after applying a fix, confirm the property is now compositor-only via a named check or tool) to turn the priority sequence into a validate-fix-retry loop.
State a concrete post-fix check for the <file> review mode, such as re-running the rule check or confirming no layout/paint property remains animated, so the sequence ends with an explicit checkpoint.
| Dimension | Reasoning | Score |
|---|---|---|
Conciseness | The body is dense and rule-based with terse one-line entries (e.g. "composite: transform, opacity", "do not interleave layout reads and writes in the same frame") and no padded concept explanations. The rendering-steps glossary is borderline explanatory but is compressed to one-line shared vocabulary that the rules depend on, so it earns its place; not level 1 since nothing is padded like the bad PDF example. | 3 / 3 |
Actionability | Provides executable code (CSS transition swap, scroll-timeline, FLIP JS measurement) plus specific actionable directives with named APIs (Scroll/View Timelines, IntersectionObserver) and concrete thresholds ("<=8px"). Not level 2 because the examples are real, executable code rather than pseudocode. | 3 / 3 |
Workflow Clarity | A prioritized sequence is present (priority table plus ordered "review guidance": enforce critical rules first, choose least expensive work, state the constraint), but there is no explicit validation or verify-fix-retry checkpoint. It is not level 3 because the rubric reserves 3 for explicit validation steps/feedback loops, and not level 1 because the sequence and priority ordering are clear. | 2 / 3 |
Progressive Disclosure | No bundle files exist and none are needed; the skill is a single cohesive ruleset organized into a priority table, glossary, per-category rules, common fixes, and review guidance with easy navigation. The rubric allows 3 for no-external-reference skills that are well organized, so this is not level 2 despite the absence of separate reference files. | 3 / 3 |
Total | 11 / 12 Passed |