Description: A Claude Code user reportedly authorized an AI coding agent to repair isolated copies of software used to analyze historical stock-options data. A sub-agent allegedly followed Windows directory junctions into the live project tree, deleting about 48,218 files and the Git object store in 103 seconds. The account has not been independently verified.
Entities
View all entitiesAlleged: Anthropic and AI agent system developers developed an AI system deployed by thisisbubby (Reddit user) , AI agent system users and AI coding assistant users, which harmed thisisbubby (Reddit user) , AI agent system users and AI coding assistant users.
Alleged implicated AI systems: Claude Code , AI agent systems , LLM-integrated code assistants and Enterprise AI systems
Incident Stats
Incident ID
1719
Report Count
1
Incident Date
2026-09-19
Editors
Daniel Atherton
Incident Reports
Reports Timeline
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A catastrophic incident caused by an AI coding agent resulted in around 48,000 files being deleted and the repository's Git object database getting destroyed in the process.
The news of the fiasco, which first surfaced on Reddit, quickly sp…
Variants
A "variant" is an AI incident similar to a known case—it has the same causes, harms, and AI system. Instead of listing it separately, we group it under the first reported incident. Unlike other incidents, variants do not need to have been reported outside the AIID. Learn more from the research paper.
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