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Marc-André Bombeck
9b61769a32
Introduce a third Coach memory type alongside facts (durable traits) and plans (standing if-then habits): a time-anchored "bring this back later" reminder with a due moment and a done state. The free-text note is AES-256-GCM ciphertext via the shared Bytes codec; metric, status, the trigger fields and the dates stay plain so the sweep and the injection picker rank and filter without a per-row decrypt. Migration 0196 is purely additive (status and trigger_kind are app-side closed enums, not DB enums). Register the new note_encrypted column in the encrypted-columns registry and the rotation script so a key rotation can never silently skip it.
43 lines
2.2 KiB
SQL
43 lines
2.2 KiB
SQL
-- v1.22 (B2/B6) — Coach episodic reminder memory.
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--
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-- A time-anchored "bring this back later" intent the Coach captured from a
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-- conversation. The missing memory type between coach_facts (durable traits)
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-- and coach_plans (standing if-then habits): an episode with a due moment and
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-- a done state. The free-text note is AES-256-GCM ciphertext stored as `bytea`
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-- via the shared Bytes codec — the same shape as coach_plans.if_cue_encrypted.
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-- metric / status / trigger fields / dates / source stay plain so the daily
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-- sweep and the injection picker can rank and filter without a per-row decrypt.
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-- status (proposed | active | due | surfaced | done | dismissed) and
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-- trigger_kind (date | context) are app-side closed enums, deliberately NOT DB
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-- enums so this migration stays purely additive. Soft-delete via deleted_at.
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CREATE TABLE "coach_reminders" (
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"id" TEXT NOT NULL,
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"user_id" TEXT NOT NULL,
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"note_encrypted" BYTEA NOT NULL,
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"metric" TEXT,
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"related_plan_id" TEXT,
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"trigger_kind" TEXT NOT NULL DEFAULT 'date',
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"due_at" TIMESTAMP(3),
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"context_cue" TEXT,
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"status" TEXT NOT NULL DEFAULT 'active',
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"source" TEXT NOT NULL,
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"source_conversation_id" TEXT,
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"last_surfaced_at" TIMESTAMP(3),
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"surface_count" INTEGER NOT NULL DEFAULT 0,
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"created_at" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
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"updated_at" TIMESTAMP(3) NOT NULL,
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"deleted_at" TIMESTAMP(3),
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CONSTRAINT "coach_reminders_pkey" PRIMARY KEY ("id")
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);
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-- The daily sweep scans a user's active reminders whose due_at has passed; the
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-- status + deleted_at columns are part of that predicate, so the composite
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-- index lets the planner serve the sweep + the injection read index-backed.
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CREATE INDEX "coach_reminders_user_id_status_due_at_deleted_at_idx" ON "coach_reminders"("user_id", "status", "due_at", "deleted_at");
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-- The context-cue evaluation pass filters by trigger_kind + status per user.
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CREATE INDEX "coach_reminders_user_id_trigger_kind_status_idx" ON "coach_reminders"("user_id", "trigger_kind", "status");
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ALTER TABLE "coach_reminders" ADD CONSTRAINT "coach_reminders_user_id_fkey" FOREIGN KEY ("user_id") REFERENCES "users"("id") ON DELETE CASCADE ON UPDATE CASCADE;
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