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, writes event batches to the configured destination, and advances its cursor only after the destination acknowledges the batch.

Supported destinations:

  • R2,
  • Splunk HEC,
  • S3 through a customer-provided presigned upload flow.

Forwarding

The audit-forward integration exposes terminal experiment events to the Harness worker. The consumer starts one analyst workflow per event and advances its cursor only after dispatch succeeds.

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