development, staging, or production.
Enforcement points
- A runner is paired to one workspace/environment tuple.
- A runner pool is scoped to the same tuple.
- Signed commands repeat the target and authorization context.
- The runner rejects a different environment locally even when the command signature is valid.
- Service-account tokens can be limited to explicit environment IDs.
- Effective access is the intersection of token scopes, resource restrictions, principal role, and normal route permission checks.