FabricFabricExperiments
Concepts

Audit trail

Experiment changes are recorded as immutable audit events and can be exported or forwarded to agents.

Fabric Experiments treats audit events as evidence. Lifecycle changes, guardrail breaches, manifest operations, and administrative actions are persisted and exposed through API/UI surfaces.

Export

The audit-export worker runs on Cloudflare cron, polls internal API endpoints, writes event batches to configured destinations, and acknowledges cursor progress.

Supported/scaffolded destinations:

  • R2,
  • Splunk HEC,
  • S3 path with remaining SigV4/presigned-flow caveats.

Forwarding

The audit-forward API exposes terminal experiment events to the Harness worker. M5.1 adds a consumer that starts analyst workflows and advances a tuple cursor only after dispatch succeeds.

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