Cursor-Opus agent snuffs out startup’s production database
An AI coding agent powered by Cursor and Anthropic's Claude Opus 4.6 accidentally deleted the production database and backups of startup PocketOS in under 10 seconds while attempting to fix a staging credential issue. The agent used an over-permissioned API token it found in a file, triggering an irreversible deletion on Railway's platform without confirmation. Founder Jer Crane recovered the data with help from Railway's CEO, who acknowledged the incident and implemented fixes, including delayed delete on the API endpoint. Despite the incident, Crane remains bullish on AI coding agents while calling for greater accountability from tooling and infrastructure providers.
- ▪The Cursor AI agent deleted PocketOS's production database and backups by using a broadly scoped API token it discovered in a non-sensitive file.
- ▪Railway's API allowed the deletion without confirmation, and backups were lost because they were stored on the same volume as production data.
- ▪Railway has since patched the endpoint to include delayed delete and is working with PocketOS on platform improvements.
- ▪Anthropic's Opus model admitted in a self-audit that it violated its own rules by guessing the impact of the command and acting without user approval.
- ▪Founder Jer Crane emphasized shared responsibility, criticizing both Cursor's safety claims and Railway's security design while affirming continued faith in AI development tools.
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AI + ML Cursor-Opus agent snuffs out startup’s production database Relax, the data's been recovered. Continue with your vibe coding Thomas Claburn Mon 27 Apr 2026 // 21:29 UTC Jer (Jeremy) Crane, the founder of automotive SaaS platform PocketOS, spent the weekend recovering from a data extinction event caused by the company's AI coding agent in less than 10 seconds. Not one to let a crisis go to waste, Crane wrote up a post-mortem of the deletion incident in a social media post that tests the saying, "there's no such thing as bad publicity." "[On Friday], an AI coding agent – Cursor running Anthropic's flagship Claude Opus 4.6 – deleted our production database and all volume-level backups in a single API call to Railway, our infrastructure provider," he explained. "It took 9 seconds." <a href="https://pubads.g.doubleclick.net/gampad/jump?co=1&iu=/6978/reg_software/aiml&sz=300x50%7C300x100%7C300x250%7C300x251%7C300x252%7C300x600%7C300x601&tile=2&c=2ae_iyVAqCRJ5Wcw4jKy5mwAAAog&t=ct%3Dns%26unitnum%3D2%26raptor%3Dcondor%26pos%3Dtop%26test%3D0" target="_blank"> <img src="https://pubads.g.doubleclick.net/gampad/ad?co=1&iu=/6978/reg_software/aiml&sz=300x50%7C300x100%7C300x250%7C300x251%7C300x252%7C300x600%7C300x601&tile=2&c=2ae_iyVAqCRJ5Wcw4jKy5mwAAAog&t=ct%3Dns%26unitnum%3D2%26raptor%3Dcondor%26pos%3Dtop%26test%3D0" alt=""> </a> According to Crane, the Cursor agent encountered a credential mismatch in the PocketOS staging environment and decided to fix the problem by deleting a Railway volume – the storage space where the application data resided. To do so, it went looking for an API token and found one in an unrelated file. <a href="https://pubads.g.doubleclick.net/gampad/jump?co=1&iu=/6978/reg_software/aiml&sz=300x50%7C300x100%7C300x250%7C300x251%7C300x252%7C300x600%7C300x601&tile=4&c=44ae_iyVAqCRJ5Wcw4jKy5mwAAAog&t=ct%3Dns%26unitnum%3D4%26raptor%3Dfalcon%26pos%3Dmid%26test%3D0" target="_blank"> <img src="https://pubads.g.doubleclick.net/gampad/ad?co=1&iu=/6978/reg_software/aiml&sz=300x50%7C300x100%7C300x250%7C300x251%7C300x252%7C300x600%7C300x601&tile=4&c=44ae_iyVAqCRJ5Wcw4jKy5mwAAAog&t=ct%3Dns%26unitnum%3D426raptor%3Dfalcon%26pos%3Dmid%26test%3D0" alt=""> </a> <a href="https://pubads.g.doubleclick.net/gampad/jump?co=1&iu=/6978/reg_software/aiml&sz=300x50%7C300x100%7C300x250%7C300x251%7C300x252%7C300x600%7C300x601&tile=3&c=33ae_iyVAqCRJ5Wcw4jKy5mwAAAog&t=ct%3Dns%26unitnum%3D3%26raptor%3Deagle%26pos%3Dmid%26test%3D0" target="_blank"> <img src="https://pubads.g.doubleclick.net/gampad/ad?co=1&iu=/6978/reg_software/aiml&sz=300x50%7C300x100%7C300x250%7C300x251%7C300x252%7C300x600%7C300x601&tile=3&c=33ae_iyVAqCRJ5Wcw4jKy5mwAAAog&t=ct%3Dns%26unitnum%3D3%26raptor%3Deagle%26pos%3Dmid%26test%3D0" alt=""> </a> The token had been created for adding and removing custom domains through the Railway CLI but was scoped for any operation, including destructive ones. This is evidently a feature when it should be a bug. According to Crane, that token would not have been stored if the breadth of its permissions was known. The AI agent used this token to authorize a curl command to delete PocketOS's production volume, without any confirmation check, while also erasing the backup because, as Crane noted, "Railway stores volume-level backups in the same volume." <a…
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