# Causal event log 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.

Check a supplied multi-agent log against vector clocks, actor sequence continuity, baseline history and explicit parents; report unobserved dependencies and concurrent-clock pairs. Does not execute or authenticate history.

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

## Choose for
- Detect missing causal history in a multi-agent event log
- Check vector clock regressions and out-of-order agent messages before offline replay

## 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/causal-log-check.json)
- [Input schema](/reference/schemas/causal-log-check.input.json)
- [Output schema](/reference/schemas/causal-log-check.output.json)
- [Fixed example](/reference/examples/causal-log-check.json)
- [Complete HTML reference](/discover/tools/causal-log-check)