Bounded answer
For entitlement service, receipt an entitlement decision with the exact subject, package or result digest, delivery endpoint, lifecycle identifier, and delivery instant. Accept acknowledgement only for that same digest and make exact replays idempotent.
Input contract
What must be fixed first
Lifecycle and request identifiers
Delivered artifact or result digest
Bound destination endpoint
Recipient identity and acknowledgement policy
Procedure
Work the decision in order
- 1
Verify delivery follows an authorized decision.
- 2
Bind the receipt to the exact artifact and endpoint.
- 3
Persist the append-only delivery state.
- 4
Accept acknowledgement only from the bound recipient.
- 5
Return the original acknowledgement on exact replay.
Expected outputs
- Delivery receipt
- Acknowledgement or refusal
- Append-only lifecycle state
Refuse when
- Acknowledgement names another artifact or lifecycle.
- Destination endpoint changed after authorization.
- A duplicate identifier carries different content.
- Eligibility must be recomputed from the active grant rather than copied from a prior response.
Questions this guide answers
What is the minimum safe receipt and acknowledgement for an entitlement service?
For entitlement service, receipt an entitlement decision with the exact subject, package or result digest, delivery endpoint, lifecycle identifier, and delivery instant. Accept acknowledgement only for that same digest and make exact replays idempotent.
Which identity fields must remain bound for an entitlement service?
Preserve principal, offer, grant, scope, and expiry; refuse the operation when any edge is missing or belongs to another lifecycle.
What should happen on an exact replay?
Return the original bounded decision or result without consuming quota, delivering, or acknowledging a second time.
What role does the linked book play?
It contributes a conceptual framing for boundaries, resilience, or governance. It is not evidence that the technical control exists or works.
What does this guide not establish about an entitlement service?
Eligibility must be recomputed from the active grant rather than copied from a prior response.
Limits
- Eligibility must be recomputed from the active grant rather than copied from a prior response.
- The linked book supplies a conceptual lens only; the operational contract and implementation remain the authority for machine behavior.
- This guide does not authorize production mutation, payment, deployment, or access to a private evidence corpus.