id: saas-spend-audit title: SaaS Spend-Audit Circuit-Breaker category: operations primitive: /loop use_when: You want a recurring audit of SaaS/cloud spend that flags anomalies but can't run up its own bill. verify: Each flagged line exceeds its baseline by the configured threshold; the audit itself stays under a cost cap. tags: [finops, anomaly, cost-cap]

SaaS Spend-Audit Circuit-Breaker

A recurring spend audit with a hard cost cap on the auditor itself โ€” it flags overspend without becoming overspend. Primitive: /loop ยท Category: operations

Use when

Cloud/SaaS bills drift and nobody notices until renewal. You want a periodic loop that compares current spend to a baseline and flags anomalies โ€” governed so the audit never costs more than it saves.

Prompt

Goal:        Flag SaaS/cloud line items that exceed their baseline by > <X>%.
Context:     The current billing export; a rolling baseline per line item.
Constraints: Read-only. Hard cap <$N>/run on the audit itself.
Done-when:   Every line item this pass is within threshold, or flagged with the delta.
Evidence:    An anomalies ledger (item, baseline, current, delta%); the run cost.
If-blocked:  Halt at the cost cap and report partial results rather than overrunning.

Verify

A separate check confirms each flagged item's delta actually exceeds the threshold versus its baseline, and that the recorded run cost is under the cap.

Steps

  1. Pull the latest billing export.
  2. Compare each line to its baseline; flag items over threshold.
  3. Update baselines; stop at the cap.

Notes

Run daily or weekly, not hourly. The circuit-breaker (cost cap) is the point โ€” an ungoverned audit loop is itself a spend anomaly.