# Checkpoint handoff consistency check

Build-time release reference. Runtime readiness, deployment, payment settlement and external indexing are not evaluated here. Prices are proposed; this file cannot authorize execution or payment.

Compare a checkpoint with a proposed resume packet: workflow/consumer/revision, JSON state digest, required artifact manifests, exact stream cursors and pending-effect receipts. Reports reconciliation blockers; never restores or dispatches anything.

Release: 0.29.0. Built: 2026-10-06T15:38:00Z.

## Choose for
- Check an agent checkpoint handoff before resuming after interruption
- Find missing artifacts, cursor gaps and uncertain side effects in a recovery packet

## Outside this profile
- Executing tools, sending messages, retrying effects, restoring state, or contacting live services
- Authenticating evidence, verifying signatures or identities, granting permission, or enforcing authorization
- Inferring facts omitted from the supplied artifact snapshot or guaranteeing exactly-once execution

Proposed nominal USD 0.01 per successful call; payer fees excluded. No verified runtime availability.

- [Exact release contract](/reference/services/checkpoint-handoff-check.json)
- [Input schema](/reference/schemas/checkpoint-handoff-check.input.json)
- [Output schema](/reference/schemas/checkpoint-handoff-check.output.json)
- [Fixed example](/reference/examples/checkpoint-handoff-check.json)
- [Complete HTML reference](/discover/tools/checkpoint-handoff-check)