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We Gave an MCP Agent Write Access to Store Data. Here's What the Retry Got Wrong.

This story is from 2026-09-25. It is preserved in the archive; the latest stories are on the live feed.

Read and write access to real data aren't just different in degree — they're different in kind. If a read fails, you get a wrong answer — fixable. A write failure is different: the data may have already changed, and if the agent retries, it can change again. Here's a scenario that shows what that l…

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  1. 2026-09-25 14:46 · DEV Community — AI
    We Gave an MCP Agent Write Access to Store Data. Here's What the Retry Got Wrong.

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