jevVIDEO

AWS demo shows Jev blocking an agent's invented tool argument

In an 11-minute demo, an AWS developer advocate shows Jev asking four yes/no questions about a tool call, scoring the assumed Seattle 0.04, and the agent then asking which city the user meant.

Alpha Batcher

@alphabatcherArchived 2026.09.29Originally posted 2026.09.29

Alpha Batcher @alphabatcherOriginally posted 2026.09.29

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AWS just showed how Jev stops an agent from calling a tool with a made-up argument 11 minutes from Mike Chambers, senior developer advocate at AWS One request asks Jev 4 yes/no questions about the tool call before it runs Jev scored the assumed Seattle 0.04, so the agent asked which city the user meant Watch it, then read the full guide on writing Jev questions below

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x.com/alphabatcher/status/2104663811055820816Archived 2026.09.29 10:02