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Workshop: Teach a Write-Once Stamp Card for Agent Tools in 80 Minutes

This story is from 2026-09-23. It is preserved in the archive; the latest stories are on the live feed.

Agent write tools fail quietly when retries replay the same mutation without a stable idempotency key. This workshop freezes that failure into an 80-minute lab with a stamp card, a local stub, and a replay assertion students can rerun. The method stays useful for teaching even if you never touch a…

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  1. 2026-09-23 17:34 · DEV Community — AI
    Workshop: Teach a Write-Once Stamp Card for Agent Tools in 80 Minutes

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