Onboarding Email/In-App Sequence to Aha

1Design the activation sequence from signup to first value moment. Every message exists to cause ONE next action in-product.
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3INPUT: product + aha_moment: {{aha}}  // the behavior correlated with retention
4Setup steps between signup and aha: {{steps}} | channels: {{channels}}  // email, in-app, push
5Behavioral triggers available: {{events}}
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7DELIVER per message: trigger (time-based only as fallback — behavior-based preferred: "did step 2 but not step 3 within 24h"), channel, the ONE action it drives, copy (≤80 words, action-verb CTA deep-linking to the exact screen), and the skip condition (already did it → never send).
8SEQUENCE RULES: message 1 within minutes of signup drives step 1 only; stuck-state messages address the specific step's friction (offer the 2-minute path, a template, or a human); after aha → switch to habit-formation messaging; hard cap {{n}} messages — annoyance churns more than silence.
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10OUTPUT — ONLY JSON: { "sequence": [], "measurement": "step-conversion funnel definition" }