体系 / ai-driven

rule.ai.ux-streaming-contract · canon

Treat streaming as semantic asynchronous state

Queued, generating, tool activity, partial, completed, stopped and failed states are distinguishable and accessible.

実践ガイダンス

Reserve layout, preserve focus and user input, expose stop, batch live announcements and label partial output as partial. Completion is a state transition, not the last received token.

推奨

  • Stabilize geometry before output arrives
  • Announce meaningful chunks rather than every token
  • Keep stop and retry keyboard reachable

非推奨

  • Move the active target as content streams
  • Present partial output as confirmed
  • Use typing theater without status meaning

検証契約

Keyboard stop, focus retention, screen-reader announcement, reduced-motion and layout-shift tests

根拠リファレンス

実装・検証成果物