Habit formation engine — spaced repetition, lock-in tracking & retention curves — Phase 5: Integration with existing Kin surfaces #98

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opened 2026-06-09 06:15:22 +00:00 by Mark · 0 comments

Mark commented

2026-06-09 06:15:22 +00:00

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Phase 5: Integration with existing Kin surfaces

Wire the engine into the app's existing UI.

Priority Today: show spaced-repetition nudges ("Call Sarah — interval stretches to 10 days if you do")
Interaction log: after logging, show next expected window ("Next check-in: ~7 days")
Weekly digest: "You maintained contact with 6/10 key relationships this week — 3 habits locked in"
Notification: spaced-repetition nudge when next window opens

Tech notes

@neuroflux/spaced-repetition npm package exists and implements SM-2 — worth evaluating
The engine is stateless per-person (just interval + history) — easy to persist in existing IndexedDB
Lock-in scoring is pure computation over interaction timestamps — no new data needed
Cadence data lives alongside the existing person data in the Dexie store
All computation is on-device, same offline-first philosophy

Decomposed from kimi_agent_kin_app_sync#81

## Phase 5: Integration with existing Kin surfaces Wire the engine into the app's existing UI. - [ ] Priority Today: show spaced-repetition nudges ("Call Sarah — interval stretches to 10 days if you do") - [ ] Interaction log: after logging, show next expected window ("Next check-in: ~7 days") - [ ] Weekly digest: "You maintained contact with 6/10 key relationships this week — 3 habits locked in" - [ ] Notification: spaced-repetition nudge when next window opens ## Tech notes - `@neuroflux/spaced-repetition` npm package exists and implements SM-2 — worth evaluating - The engine is stateless per-person (just interval + history) — easy to persist in existing IndexedDB - Lock-in scoring is pure computation over interaction timestamps — no new data needed - Cadence data lives alongside the existing person data in the Dexie store - All computation is on-device, same offline-first philosophy --- _Decomposed from [kimi_agent_kin_app_sync#81](https://forgejo.tail018ac4.ts.net/Mark/kimi_agent_kin_app_sync/issues/81)_