Conciseness

The body is dense parameter tables with no filler — it assumes GSAP knowledge, never explaining what a library or ease is, and every section carries exact values (e.g. "±230px (~12% frame)", "0.34s power4.in", "0.05s × 0.84 decay"). It falls short of 5 because content is duplicated: the "Choosing a Variant" table largely restates the opening "Catalog" table, and the Anti-Patterns table repeats rules already given in sections 1–7.

Actionability

Guidance is highly concrete — exact eases, durations, scales, blur peaks, opacity values, and stagger timings per technique, enough to author the tweens directly. Not a 5 because the body contains zero executable code and its sole code pointer ("All GSAP code templates... live in `examples/gsap-implementation.md`") targets a file that does not exist in this bundle, leaving a minor but real gap between parameters and a copy-paste-ready template.

Workflow Clarity

A reference catalog rather than a linear procedure, but it sequences use well: an ordered reading path ("read it first" → motion-doctrine), a catalog with a "Use for" column, a "Choosing a Variant" decision table, and an Anti-Patterns checklist that functions as verification before shipping. Not a 5 because there are no worked end-to-end examples or explicit checkpoints tying the pieces into one authoring pass.

Progressive Disclosure

Good structure: parameters inline in SKILL.md, with clearly signaled one-level-deep pointers ("motion-doctrine", "seam-craft", "examples/gsap-implementation.md") that keep the body lean. Docked from 5 because no bundle files exist (no references/, scripts/, assets/, or examples/), so the load-bearing `examples/gsap-implementation.md` reference cannot be resolved — navigation depends on files outside this bundle.

Specificity

The description enumerates all seven techniques by name ("zoom-through, INVERSE zoom-through, cut-the-curve, waterfall cut, rack-focus blur-cut", "waterfall ENTRY", "nudge curve") plus concrete parameters ("partial-travel (~12% of frame)", "mirrored power4 eases", "10px text / 18–20px full-frame", "10/65/25 slide ratio") — multiple specific concrete capabilities with comprehensive coverage, matching the 5 anchor. It is not a 4 because coverage of what the skill contains is exhaustive rather than having minor gaps.

Completeness

"What" is answered explicitly (the full technique catalog with its parameters) and "when" is an explicit trigger clause: "Read before authoring any transition, text-beat handoff, kinetic text entry, or group reposition." Both are concrete and explicit, matching the 5 anchor exactly.

Trigger Term Quality

The bracketed keyword list ("transition, blur, waterfall, stagger, cascade, kinetic-text, title-card, segment-opener, nudge, slide, easing, group-motion, cinematic, pacing, velocity...") plus natural phrases in the prose ("title cards / segment openers", "group reposition") give comprehensive coverage with many synonyms a user authoring motion would actually say. Not a 4: no obvious natural variant is missing for this domain.

Distinctiveness Conflict Risk

It carves a clear niche (velocity-matched seam parameters within a motion system) with distinctive triggers like "cut-the-curve", "rack-focus", and "scale-sign". However the body reveals closely related sibling skills ("motion-doctrine", "seam-craft") sharing this motion territory, and broad tags like "transition", "easing", and "pacing" create minor overlap risk with those siblings — matching the 4 anchor ("mostly distinct; minor overlap risk with closely related skills") rather than 5.