As agents begin to transact, your visibility must increase — not decrease. Real-time events and durable audit logs make that possible.
What to emit on every transaction
- ▸Initiator (agent, workflow, or user)
- ▸Counterparty (merchant) and MCC/category
- ▸Amount, currency, and authorization outcome
- ▸Policy decision metadata (rule matched, reason)
- ▸Links to artifacts (invoice, receipt, approval trail)
Why webhooks over polling
- ▸Near real-time reactions across systems (Slack alerts, approvals, BI)
- ▸Lower latency and infrastructure cost
- ▸Replayable for recovery and backfills
The audit trail contract
Audit logs should be append-only, tamper-evident, and queryable by agent, merchant, and policy rule. This is how you answer “what happened?” in seconds.
Webhooks + audit trails keep humans in the loop while agents move at machine speed.