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How are you actually verifying the model that ran a tool call?

This story is from 2026-08-26. It is preserved in the archive; the latest stories are on the live feed.

We kept getting agent traces that said we ran claude-haiku-4-5, then the bill and the tool schema didn't match. Something downstream had swapped it. Evals still green because the JSON looked like a tool call. What we ended up doing on Conifer: a named catalog id is that id, or a typed error. Includ…

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  1. 2026-08-26 19:17 · r/AI_Agents
    How are you actually verifying the model that ran a tool call?

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