How Harmonia uses it
Firestore owns tenant-scoped workflow truth and atomically records stage outbox entries. Pub/Sub transports stage triggers but cannot advance state by itself. Cloud Storage holds uploaded and generated binary assets while Firestore retains identity, lineage, and digests.
Firestore
Durable records and transactions.
Pub/Sub
At-least-once stage delivery.
Cloud Storage
Authorized source and output assets.
Evidence status
Emulator and contract tests verify local persistence behavior. Cloud resource existence and production data paths require authenticated infrastructure evidence.Cloud Firestore
How Firestore owns Harmonia's durable workflow, authority, lineage, and audit records.
Cloud Pub/Sub
How Harmonia uses Pub/Sub for recoverable asynchronous stage delivery.
Cloud Storage
How Harmonia stores authorized uploads and generated binary artifacts outside Firestore.
Last modified on August 28, 2026
