Cathryn Lavery
dbc4abd965
- SKILL.md: confirm type/pattern/size/cuts with the user before rendering; checklist hooks for the checkpoint and the packaged self-check - scripts/verify-docs-sync.py: CI now fails when the frontmatter description loses a type's lexical hook, the gallery can't reach a shipped example, or the README tree names a missing file - skills/diagram-design/scripts/self_check.py: distilled output checker that ships with the skill so installed agents can verify their own diagrams; adversarial suite in scripts/test-self-check.py - assets/index.html: six new tabs (OAuth sequence + five single-variant examples with a data-single variant lock) so every shipped example is browsable - docs/adr/0001-0004: settled policies recorded (pinned controller, taxonomy freeze, reveal-only autoplay, byte cap + trigger-rich description) - README: It's-working-if section, new gates documented; CONTRIBUTING: gate table, ADR guidance, type-addition invariants; CI: two new steps
1.1 KiB
1.1 KiB
ADR 0003 — reveal is the only sanctioned autoplay
Status: accepted (v2.3, clarified after review)
Context
The motion contract lists "autoplay on load" as an anti-pattern, yet the canonical controller starts a reveal run on load. Early drafts of animation.md stated both without reconciling them, which reads as a contradiction to anyone copying the template.
Decision
reveal mode may run once on initial load — it exists for short ordered explanations where a click-to-start would be friction — and then remains complete. It never restarts on viewport re-entry, tab return, or without an explicit Replay action. Every other mode is user-initiated (step) or CSS-scoped (loop); none stays inert. Under prefers-reduced-motion: reduce and without JavaScript, all modes show the complete static frame.
Consequences
- The anti-pattern is precisely "repeated or attention-trapping autoplay," not "any motion before interaction."
verify-motion.pyneeds no autoplay heuristic: the pinned controller is the only code that can start a run, and it implements exactly this policy.