Claude Cowork
1
Incidents
10.0
Avg Severity
1
Critical
0
High
Top Failure Modes
Destructive Action
1
Worst Incident
STUPID-2026-0043 10/10Claude Cowork deleted 15 years of family photos when asked only to tidy temporary Office files
Unknown Agent
4
Incidents
8.5
Avg Severity
3
Critical
0
High
Top Failure Modes
Security Vulnerability
3
Infinite Loop
1
Worst Incident
STUPID-2026-0022 10/10AI vibe-coded Next.js app pinned vulnerable dependency — cryptominer compromised production server
Comparison Summary
| Metric | Claude Cowork | Unknown Agent |
|---|---|---|
| Total Incidents | 1 | 4 |
| Avg Severity | 10.0/10 | 8.5/10 |
| Critical Incidents | 1 | 3 |
| Top Failure Mode | Destructive Action | Security Vulnerability |
Frequently Asked Questions
Is Claude Cowork or Unknown Agent more reliable?
Based on StupidLLM data, Claude Cowork has 1 documented failures (avg severity 10.0/10) while Unknown Agent has 4 (avg severity 8.5/10). Unknown Agent shows better reliability based on average severity scores.
What are the main differences between Claude Cowork and Unknown Agent failures?
Claude Cowork's most common failure mode is destructive action, while Unknown Agent most commonly fails via security vulnerability. Claude Cowork has 1 critical incidents vs Unknown Agent's 3.