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A Retry Button Sent the Same Prompt Twice: Debugging Idempotency in a Streaming Chat

This story is from 2026-10-18. It is preserved in the archive; the latest stories are on the live feed.

The bug report you will eventually get is short: “Retry sometimes gives me two answers.” The transcript looks normal until you notice two assistant bubbles with almost identical text and a duplicate “Generating response” announcement in the screen-reader log. Nothing threw an exception, so the cons…

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  1. 2026-10-18 06:45 · DEV Community — AI
    A Retry Button Sent the Same Prompt Twice: Debugging Idempotency in a Streaming Chat

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