gsap-timeline

Official GSAP skill for timelines — gsap.timeline(), position parameter, nesting, playback. Use when sequencing animations, choreographing keyframes, or when the user asks about animation sequencing, timelines, or animation order (in GSAP or when recommending a library that supports timelines).

Quality

93%

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Securityby

Passed

No findings from the security scan

Quality

Content

86%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.

A tight, code-first reference that makes timeline sequencing immediately actionable, with clean sectioning appropriate to its size. Minor conciseness gains are available by de-duplicating the defaults/position-parameter advice between the body and the Best practices/Do Not sections.

Suggestions

Consolidate the position-parameter and defaults advice so it lives in one place; the 'Best practices' and 'Do Not' lists currently restate guidance already covered in the dedicated sections.

Trim the inline `tweenFromTo` comment to a brief one-liner; the current sentence explains mechanics Claude can infer from the API name.

Clarify the reverse playback guidance — 'tl.reverse() / tl.progress(1) then tl.reverse()' reads as two separate bullets conflated; state when to seek before reversing.

Dimension	Reasoning	Score
Conciseness	Largely lean — every section pairs a one-line framing with executable code — but some redundancy between the 'Position Parameter', 'Best practices', and 'Do Not' lists repeats the position-parameter/defaults guidance, and the `tweenFromTo` inline comment over-explains what a single API call does.	4 / 5
Actionability	Every concept is backed by copy-paste-ready JS (timeline creation, position param examples, defaults, labels, nesting, playback), and the API surface (play/pause/reverse/restart/time/progress/kill) is given as concrete method calls.	5 / 5
Workflow Clarity	Sections progress logically from creation → placement → defaults → options → labels → nesting → playback, and the Best practices/Do Not pair as a decision checklist; falls short of a 5 because there is no validation/verification checkpoint (e.g., how to confirm a timeline runs as expected) and the playback reverse guidance is slightly muddled.	4 / 5
Progressive Disclosure	Under 50 lines, single-purpose, well-organized into short headed sections with no external bundle files to reference, satisfying the simple-skill exception for progressive disclosure.	5 / 5
	Total	18 / 20 Passed

Description

100%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.

A strong, specific description that cleanly separates timelines from sibling GSAP skills and pairs concrete API names with natural user trigger phrases. It answers both what and when without padding or buzzwords.

Dimension	Reasoning	Score
Specificity	Names multiple concrete capabilities — 'gsap.timeline(), position parameter, nesting, playback' — covering the timeline feature surface comprehensively rather than with generic language.	5 / 5
Completeness	Explicitly answers both 'what' (timeline creation, position parameter, nesting, playback) and 'when' via a concrete 'Use when sequencing animations...' clause with trigger phrases.	5 / 5
Trigger Term Quality	Surfaces natural user phrasing ('sequencing animations', 'choreographing keyframes', 'animation sequencing, timelines, or animation order') with synonyms and the API name a user would actually invoke.	5 / 5
Distinctiveness Conflict Risk	Carves a clear niche (timelines/sequencing) and explicitly distinguishes sibling skills via the cross-references in the body, with trigger phrasing unlikely to fire gsap-core or gsap-scrolltrigger.	5 / 5
	Total	20 / 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: calesthio/OpenMontage
Path: .agents/skills/gsap-timeline/SKILL.md
Commit: cd9f3c1

Reviewed: about 13 hours ago

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