gsap-performance

Official GSAP skill for performance — prefer transforms, avoid layout thrashing, will-change, batching. Use when optimizing GSAP animations, reducing jank, or when the user asks about animation performance, FPS, or smooth 60fps.

Quality

78%

Does it follow best practices?

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tessl review fix ./skills/gsap-performance/SKILL.md

Quality

Content

73%Weight 40%Scale 1-5

Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.

The body is well-organized and lean for a single-purpose performance skill, with an executable quickTo example and clear do/don't structure. Actionability dips because several sections stop at directives without code, and the "Best practices" section restates earlier content.

Suggestions

Add a short executable snippet for the batch-reads-then-writes pattern or the will-change CSS, since those sections are currently directive-only.

Collapse or remove the "Best practices" section, which restates guidance already in "Prefer Transform and Opacity", "Many Elements", and "Frequently updated properties".

If sibling skills (gsap-core, gsap-scrolltrigger) are part of the bundle, confirm their paths; otherwise mark the cross-references as external.

Dimension	Reasoning	Score
Conciseness	Largely efficient and assumes Claude's competence, but the "Best practices" section repeats guidance already covered in earlier sections, which could be trimmed.	4 / 5
Actionability	The quickTo code example is executable, but several sections give high-level directives ("avoid interleaving reads and writes", "consider virtualization") without concrete code or commands for the common cases.	3 / 5
Workflow Clarity	Single-purpose performance guidance with an unambiguous quickTo example; no multi-step destructive workflow is involved, so the simple-skill exception applies.	5 / 5
Progressive Disclosure	Well-organized sections with clear navigation and a focused overview, but the body is slightly over 50 lines and points to sibling skills (gsap-core, gsap-scrolltrigger) that are not present in the bundle, with no separate reference files.	4 / 5
	Total	16 / 20 Passed

Description

83%Weight 40%Scale 1-5

Based on the skill's description, can an agent find and select it at the right time? Clear, specific descriptions lead to better discovery.

The description is concise and clearly answers both what the skill does and when to use it, with strong natural trigger terms. It is well-scoped to GSAP performance with only minor overlap risk against sibling GSAP skills.

Suggestions

Add the term "choppy" or "stuttering" as a synonym a user might say alongside jank/FPS.

Mention "ScrollTrigger" jank explicitly if scroll-driven smoothness is in scope, to sharpen distinction from gsap-scrolltrigger.

Dimension	Reasoning	Score
Specificity	Names the domain (GSAP performance) and several concrete actions — "prefer transforms, avoid layout thrashing, will-change, batching" — with minor gaps in coverage.	4 / 5
Completeness	Clearly states both what it does ("prefer transforms, avoid layout thrashing, will-change, batching") and when to use it ("Use when optimizing GSAP animations, reducing jank, or when the user asks about animation performance, FPS, or smooth 60fps").	5 / 5
Trigger Term Quality	Good natural coverage with "optimizing GSAP animations", "jank", "animation performance", "FPS", "smooth 60fps"; a few common synonyms a user might say are missing.	4 / 5
Distinctiveness Conflict Risk	Scoped to GSAP performance with distinct triggers (jank, FPS, 60fps), but minor overlap risk with closely related GSAP skills like gsap-scrolltrigger.	4 / 5
	Total	17 / 20 Passed

Validation

100%

Warnings & errors only

Checks the skill against the spec for correct structure and formatting. All validation checks must pass before discovery and implementation can be scored.

Validation — 16 / 16 Passed

Validation for skill structure

No warnings or errors.

Repository: greensock/gsap-skills
Path: skills/gsap-performance/SKILL.md
Commit: aed9cfd

Reviewed: ~16 hours ago

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