Agents that call tools over a network eventually retry a call they shouldn't have. If the tool isn't idempotent, that retry becomes a duplicate charge, a duplicate email, a duplicate order — quietly, with nothing in the logs to flag it. It's a decades-old distributed-systems problem wearing a n...
Source: [Dev.to](https://dev.to/sangaraju1988/i-built-a-small-library-so-my-llm-agent-stops-double-charging-people-4p8)