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ENGINE #02 · ANOMALY AUTOPSY

Every cost spike explained, fixed, and PR'd — before the standup ends.

Anomaly Autopsy is the only FinOps engine that goes all the way — from "your bill went up" to "here's the GitHub PR that would have prevented it." Causal, not correlational. Actionable, not "interesting."

How it works

From spike to PR in under 11 seconds.

01

Detect

Statistical change-point detection on every cost stream — cloud, LLM, SaaS — every 60 seconds. False-positive rate is held below 0.5%.

02

Diagnose

Causal inference finds the offending commit, query, model swap, or config drift. No more "the bill went up, idk why."

03

Draft fix

Writes the exact code change that would have prevented the spike — usually a 1–8 line diff against the offending file in your repo.

04

Open PR

Opens a GitHub PR with the diff, posts a Slack receipt, and tags the engineer who owns the file. Auto-revert ready if the fix regresses.

Recent autopsies

Three real spikes from the last 7 days (anonymised).

LLM+$420 in 14 minutes

Token leak — agent retry storm on /chat

Cause: Retry-on-error loop in agent.py:142 was hitting `gpt-4o` without backoff.

Fix: Added exponential backoff + max-retry=3. PR #4421.

AWS+$284/mo since Sep 12

RDS instance overprovisioned

Cause: PR #3982 bumped `db.t3.large` → `db.r6i.xlarge` for a test, never reverted.

Fix: Suggested rightsize back to `db.t3.large`. PR #4438 (approved by team lead).

Snowflake+$1,180 weekend

Warehouse left running

Cause: Dashboard auto-refresh kept the `ANALYTICS_LG` warehouse warm Fri night → Mon morning.

Fix: Set auto-suspend = 60s on idle. Allocated cost to "dashboards" tag.

Why it matters

Every other tool stops at "interesting graph".

CloudHealth tells you the bill went up. Datadog shows you a latency chart. Kubecost gives you a Pareto by namespace. None of them write the fix.CARTIE does — because writing the fix is the only thing that actually saves money.

< 11s

Spike → PR

92%

Auto-fix accepted by engineer

0.4%

False-positive rate

Run your first autopsy in 90 seconds.

14-day free trial · no credit card · connect AWS / Azure / GCP read-only · we'll show you 3 spikes from your last 30 days, with PRs ready to merge.

Backed by the 3× refund pledge. See terms.

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