Archetype: Breathwork / calm

Timed breathing phases — 4-7-8, box breathing, recovery breaths.

Minimum permissions

["activity.complete", "host.haptics", "host.timer"]

APIs to use

• host.timer.start({ duration_s, tick_s, onTick }) — phase countdown
• host.haptic("medium") — inhale / exhale transitions
• activity.complete({ kind: "breathwork", duration_seconds })
• activity.cancel() if user exits early

Example flow

1. Explain the pattern (e.g. 4-7-8)
2. Run timer per phase; haptic at phase change
3. Repeat cycles; complete with total duration

Preview persona: ?preview=1&persona=low_recovery includes timer mock.

See also: Mobility · Coaching · Check-in