Agent Spend Control for Budget Owners
You own the budget; the firewall enforces it. Per-agent ceilings, approval thresholds, and an audit trail — the control layer that makes your numbers real.
Why budget owners need a firewall
Budgets in a spreadsheet don't stop spend.
Agents spend autonomously — no PO, no approval, no ledger.
The audit log is the ledger they were missing.
What to set
Ceilings per agent and category.
Approval thresholds for material spend.
Allowlists for approved vendors.
The reporting
The log answers: who spent, on what, against which rule — monthly, in minutes.
What you get
| Budget owner lever | sipi.bot answer |
|---|---|
| Ceilings | Enforced per agent |
| Approvals | Threshold + queue |
| Vendors | Allowlists |
| Reporting | Queryable audit log |
FAQ
Do budgets slow agents?
No — ceilings only stop spend beyond the budget.
What's the first ceiling to set?
Recent actuals × 1.5, tightened with the log.
Related
Stop the next $12,400 night.
One API call (or MCP tool) in front of every agent transaction — APPROVED, BLOCKED, or FLAGGED, deterministic, ~5 ms, fully logged.
See plans — from $99/mo Try a live check