Designing a non-bugged activation-read probe: numerics must not shift under the same prompt

brandon_xyzw · x · 2026-10-19

brandonxyzw proposes a design for a non-bugged probe to detect activation reads: if large multi-op kernels get split and numerics subtly change, kernels may need modification for extracting tensor values at exact DAG positions. Key constraint: any DAG change that alters numerics under the same prompt is unacceptable, and verifying this step-by-step in an agentic loop with the same prompt might be the way.

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