access-engine/docs/tenant-engine-action-vocabulary.md

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tenant-engine Action Vocabulary

This document defines the action vocabulary for tenant-engine as a flex-auth protected system (FLEX-WP-0008-T01). Action names here match tenant-engine's own authz.FlexAuthWriteAuthorizer mapping exactly (tenant_engine/src/tenant_engine/authz.py) — coordinated between the two repos, not independently invented.

Action tenant-engine endpoint Resource type Decision effects
tenant.read GET /tenants/{id} tenant allow, deny
tenant.create POST /tenants tenant allow, deny
tenant.role.grant POST /tenants/{id}/roles/grant role-grant allow, deny
tenant.role.revoke POST /tenants/{id}/roles/revoke role-grant allow, deny
tenant.role.read GET /tenants/{id}/roles role-grant allow, deny
tenant.role.read.live GET /tenants/{id}/roles/live role-grant allow, deny
tenant.plan.assign POST /tenants/{id}/plan plan-assignment allow, deny
tenant.update PATCH /tenants/{id} tenant allow, deny
tenant.retire POST /tenants/{id}/retire tenant allow, deny
tenant.reactivate POST /tenants/{id}/reactivate tenant allow, deny
tenant.guardrail.read GET /tenants/{id}/guardrails guardrail allow, deny
tenant.guardrail.set PUT / DELETE /tenants/{id}/guardrails/{limit_key} guardrail allow, deny

The lifecycle trio is from FLEX-WP-0010 / TEN-WP-0005. The last two are the TEN-WP-0006 guardrail actions (FLEX-WP-0014). They are two actions rather than one tenant.guardrail so policy can grant a PDP the read without granting the write. That split is used today: flex-auth may tenant.guardrail.read and may not tenant.guardrail.set; tenant-engine may do both. Reasoning is recorded in examples/tenant-engine/policy_package.md.

These are the only twelve actions tenant-engine sends to POST /v1/check — its FlexAuthCheckClient (TEN-WP-0003) never sends anything else. Every tenant and role read is gated before the store is touched, preventing both unauthorized data access and tenant-existence probing. user-engine may read tenant records, flex-auth may perform the high-stakes live role lookup, and no caller receives a role-read privilege through a mutation rule.

Not in scope for this vocabulary

tenant-engine's capability roles (PLTF/IAM/VEN/CUS, ADR-0014) are tenant state — what a tenant is allowed to do on the platform. This vocabulary governs a different question: which operator/service subjects are allowed to call tenant-engine's admin API at all. The lifecycle actions do not change that boundary: tenant.retire asks whether this caller may retire a tenant, not what a retired tenant may still do — the latter is tenant state that tenant-engine enforces itself. The two must not be conflated — a policy package that checked a caller's action against a tenant's capability roles would be checking the wrong thing. See examples/tenant-engine/policy_package.md's Rules section for how the distinction is enforced.

  • docs/tenant-engine-resource-namespace.md
  • examples/tenant-engine/