Name the mutation and contrast two inputs
Record the repository and full revision, then say what one mutation does and which intended operation one identity represents. In the local receipt, pair that operation with one input digest that repeats unchanged and a second digest that conflicts under the same identity. A payload hash, a customer, or a timestamp can be relevant implementation detail, but a review record must not pretend that one of them is automatically correct for every workflow.
IETF RFC 9110 section 9.2.2 defines idempotent HTTP methods. It does not demonstrate that a target repository has application-level identity, storage, concurrency, expiry, or conflict behavior.
Check conflict and rollback before merge discussion
Run the local validator:
node --test sites/odexing.com/evidence/P157/retry-change-receipt.test.mjs
It requires an exact same-operation/same-input retry and a same-operation/different-input conflict, plus a named reviewer field, rollback owner, procedure, and post-rollback check. It does not prove that the named reviewer reviewed the change, or run Git, an endpoint, a database, a queue, or a concurrent request. Its three passing tests cover local record consistency only.
Stop when an unknown outcome becomes an automatic repeat
Pause if the maintainer cannot identify the mutation, operation identity, contrasted inputs, trusted result, conflict outcome, or recovery owner. A repository-specific exercise must observe the actual state before it treats a local record as merge evidence.
For retry-policy review, see Gate an Agent-Generated Retry-Policy Change Before Merge. For an incoming event, see Gate an Agent-Generated Payment-Webhook Change Before Merge. For an accepted-work transition, see Gate an Agent-Generated Reopen-Workflow Change Before Merge.
Does this receipt authorize a merge or prove a human reviewed it?
No. It makes proposed evidence inspectable. Authorization, implementation, concurrency behavior, and release approval remain with the accountable people and the target environment.