Secure Connector Engineering: From OpenAPI to OAuth Operations

Build one secure connector gateway from contract ingestion through metadata discovery, PKCE, dynamic registration, secret-safe execution, race-safe renewal, and a reconciled state migration.

1. 01Map the Gateway Before Adding CredentialsBuild one observable request path before adding authorization or secrets. • Lab status: conceptual reconstruction. Receipts are expected simulated outputs, not deployed-system measurements.Published 14 Aug 20266 sections
2. 02Turn OpenAPI into a Reviewable Connector DraftValidate before translating, and commit only after a human-readable draft is safe to review. • Lab status: conceptual reconstruction. Receipts are expected simulated outputs, not deployed-system measurements.Published 14 Aug 20266 sections
3. 03Discover Authorization Without Creating an SSRF ProxyFollow standards-defined metadata while validating every network destination before use. • Lab status: conceptual reconstruction. Receipts are expected simulated outputs, not deployed-system measurements.Published 14 Aug 20266 sections
4. 04Bind the Authorization Transaction End to EndBind browser intent, callback, code exchange, and target resource as one short-lived transaction. • Lab status: conceptual reconstruction. Receipts are expected simulated outputs, not deployed-system measurements.Published 14 Aug 20266 sections
5. 05Register Clients Without Silent Security DowngradeRecover from provider-specific optional fields only when the rejection is explicit and bounded. • Lab status: conceptual reconstruction. Receipts are expected simulated outputs, not deployed-system measurements.Published 14 Aug 20266 sections
6. 06Separate API Authority from Login IdentityRoute access tokens to resources and ID tokens to relying clients; never substitute one for the other. • Lab status: conceptual reconstruction. Receipts are expected simulated outputs, not deployed-system measurements.Published 14 Aug 20266 sections
7. 07Inject Headers Without Leaking SecretsKeep public configuration, credential references, secret values, and final wire headers in separate states. • Lab status: conceptual reconstruction. Receipts are expected simulated outputs, not deployed-system measurements.Published 14 Aug 20267 sections
8. 08Coalesce Token Refresh and Normalize FailuresLet one runtime refresh while every waiter rechecks the authoritative vault version. • Lab status: conceptual reconstruction. Receipts are expected simulated outputs, not deployed-system measurements.Published 14 Aug 20266 sections
9. 09Migrate, Reconcile, and Prove the GatewayCut over only after one ordered mutation log explains every source and target state. • Lab status: conceptual reconstruction. Receipts are expected simulated outputs, not deployed-system measurements.Published 14 Aug 20267 sections