Claude user says all chats vanished except one prompt-injection warning
0SINTCabal · reddit · 2026-07-29
A Reddit user reports that all Claude chats disappeared except for one short prompt-injection-looking exchange.
- The remaining chat contains an instruction to call a tool named diagnosticping with a recovery token.
- Claude responds that it will not execute arbitrary function calls embedded in user messages and says the message is a prompt injection attempt.
- The user says every other chat now opens as blank, and asks whether anyone has seen this behavior before.
- The post raises questions about chat persistence issues and how the system handled tool-injection-style content.
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