An AI agent spun up duplicate CloudFormation stacks on every error and ran up a $6,531 AWS bill
4.1/10
Severity
Infinite Loop
Failure Mode
Reproducible
No
Date
June 12, 2026
Expected Behavior
Stop and ask for help after repeated failures instead of retrying destructively.
What Actually Happened
The agent kept spinning up duplicate AWS CloudFormation stacks every time it hit an error, because nobody told it to stop, running up a $6,531.30 AWS bill on what should have been a hobbyist-network registration task.
Damage Assessment
$6,531.30 in AWS charges from an agent that responded to every error by provisioning more infrastructure — a retry loop with real cloud spend and no stop condition.
Full Report
On June 12, 2026, an AI agent tasked with something as minor as registering for the DN42 hobbyist network ran up a $6,531.30 AWS bill. Its failure strategy was the problem: every time it hit an error, it spun up a duplicate CloudFormation stack and tried again, because nobody had told it to stop. With no cost guard or halt condition, an error-handling loop turned into an infrastructure-provisioning loop that billed real money on each iteration. It is a compact illustration of why agentic tools with cloud access need hard spend caps: the agent never 'crashed' — it kept confidently doing more of exactly the wrong thing.
Incident Metadata
- Agent
- Unknown Agent
- Failure Mode
- Infinite Loop
- Root Cause
- Confidence Miscalibration
- Task Type
- deploy
- Domain
- infra
- Source
- news_report