The external surface — every third party, in one place
Neon Law Navigator's runtime external surface has these services, in two kinds — platform services (the cloud the stack runs on) and feature vendors (each lights up one capability and stubs out cleanly when unconfigured):
| Service | What it gives you | Kind | At boot |
|---|---|---|---|
| Google Cloud | Storage, OIDC, archive | platform | required — provisioned by navigator ops gcp setup |
| Restate Cloud | Durable workflow execution (workflows-service) | platform | required — the workflow broker |
| Vertex AI | The A2A agent-router LLM (Gemini Flash in prod) | platform | optional — NullRouter until configured |
| GitHub | Private per-Project repositories | platform | required in the requested cloud topology |
| DocuSign | E-signature | feature | CI-harness stub; required in a normal dev deployment and production |
| Xero | Accounting / billing (ACCREC invoices) | feature | StubBillingProvider until XERO_* is complete |
| SendGrid | Outbound + inbound email | feature | CI-harness capture; otherwise required |