# Orchestrator / Notifications Schema Handoff Prep — PREP-ORCHESTRATOR-NOTIFICATIONS-SCHEMA-HANDOF

Status: Draft (2025-11-20)
Owners: Orchestrator Service Guild · Notifications Guild · Planning
Scope: Capture the exact deliverables needed for the overdue schema handoff so downstream EvidenceLocker/ExportCenter/TimelineIndexer work can proceed.

## Expected deliverables
- **Capsule envelope schema** including `replay_id`, `dsse_envelope_hash`, `tenant_id`, `timeline_cursor`, `event_id`, `occurred_at`.
- **Transport bindings** for NATS/Redis topics with subject names and durable stream config; retention and dedupe requirements.
- **Samples**: at least one signed capsule example and one notification example referencing a replay record.
- **Versioning**: place canonical schema in `docs/events/orchestrator-scanner-events.md` and bump version tag; add samples under `docs/events/samples/`.

## Acceptance for unblock
- Schema + samples merged and checksummed; subject naming confirmed.
- Hash and version recorded back into sprint trackers (160, 161, 162, 165) under Decisions & Risks.

## Handoff
Use this document as the published prep artefact for PREP-ORCHESTRATOR-NOTIFICATIONS-SCHEMA-HANDOF.