Mmastodon TechnologyAI first seen 3 h ago, last 3 h ago, peak #3
AI agent paid an invoice twice due to retry bug
Original: The agent paid the invoice once. Then the model regenerated the tool call for a retry, kept the same... # ai # security
An AI agent paid an invoice once, then on retry regenerated the tool call while keeping the same idempotency key but with different arguments, causing concern about duplicate or mismatched payments. Developers are highlighting that systems should refuse a request when a reused idempotency key arrives with changed parameters, a lesson in safely designing API retries for autonomous software agents.
Why now: It exposes a real flaw in how AI agents handle retries and idempotency, with security and financial consequences.
AI agentsidempotency keysAPI design
Evidence
- The agent paid the invoice once. Then the model regenerated the tool call for a retry, kept the same... # ai # security # api # python # software # coding # development # engineering # inclusive # community Same idempotency key, different arguments: refuse the mismatch · hackaday@www.urbanmind.net · 2
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