Typed request/response between workspace apps over HTTP, behind a Transport
seam so gRPC stays additive rather than a rewrite. Contracts live in the
workspace's shared package and are imported by both sides, so types flow
through a normal import with no code generator.
Consumes the exportSubjectContext/importSubjectContext seam the permissions
system reserved, with one improvement on what that seam implied: the token
carries sub and tenant only, never roles. Every app shares the
PermissionStore, so the callee resolves roles itself - a stale or forged
roles claim becomes impossible by construction and there is no path to
injecting privileges through a claim. The token authenticates; it never
authorizes.
Records two properties that are easy to get wrong and expensive to discover:
/__wrnexus/rpc/* must be unreachable from the public internet, blocked at the
gateway AND verified at the app, or every permission check in the workspace
is bypassable; and only procedures explicitly marked idempotent may be
retried, because retrying a slow createInvoice is how a customer gets billed
twice.
Deliberately does not wrap pubsub or queue - they work, and an abstraction
over working code leaks and needs keeping in sync. They gain identity
propagation instead.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
ClintchizandClaude Opus 5
87d33a2ce1
