How well does it score?

88% average fidelity over 4 recorded runs. Best model: Claude 4.6 Sonnet. Weakest recorded run: 87% on GLM-4.6 (CN).

Are failures included?

No build failures are recorded for this prompt, and the log says so rather than implying every model succeeded elsewhere.

Concept render — composed live from this prompt's palette & layout. Reproducible with the library, not a stock screenshot.

Concept scene: Grid Drift — open in library →

MotionSpecBetaby Motif Studiopublished 2026-09-10

Motion-spec page — the animation before the layout

Q: What does the Motion-spec page — the animation before the layout prompt produce?

A motionspec website with Spec sheet, Timing table, Easing curves, Reduced-motion. The vibe target is "spec-first, timing-exact, curve-drawn" and the prompt body is printed in full on the page.

vibe: spec-first, timing-exact, curve-drawn

starter — 4 blocks, 1 stack≈ 700 tokens to run (estimate)

prompt.txt — copy-paste ready

A prompt-form experiment that ships only the motion spec — no layout, no copy, just the animation system a developer can build from.
• Spec sheet: the page opens as a spec document — the four moments it specifies (hero entrance, card stagger, state change, page transition) with their purpose stated before their parameters.
• Timing table: every moment in a table — duration in ms, delay, trigger, and the responsive rule ('under 640px, the stagger halves because the cards stack'); numbers a developer can copy.
• Easing curves: each curve drawn as a real graph beside its cubic-bezier value with a one-line 'why' ('ease-out-quart: heavy object settling; never use it for exits').
• Reduced-motion: the spec's reduced-motion branch specified in full — what plays (nothing that moves layout), what fades (opacity only, ≤ 300 ms), and the media-query hook.
• Palette: graph paper, ink, one curve-colour per moment; the page is a blueprint and proud of it.

Stacks shipped:HTMLBlocks:Spec sheetTiming tableEasing curvesReduced-motion

Community:▶ Re-run this prompt ⤴ Submit a remix of it ★ Your saved listRe-runs are a labelled simulation; the run log on this page is the real record.

⚠ Before you run it, know this