Execution Success Isn't Verification: 60/60 Tasks Ran, 0/60 Were Correct

DMAE1133 · reddit · 2026-09-19

A benchmark developer hit a failure mode agents builders underestimate: an ablation completed 60/60 tasks with correct topology activation but produced 0/60 correct answers. Execution success != correctness, and self-evaluation != independent verification.

His fix: strict separation of responsibilities — generation, execution in a controlled environment, external verification (builds, tests, static checks), separate failure classification, and evidence receipts recording what ran and what remains unverified. The model topology is not the trust boundary.

Across a 302-unit cross-provider paired evaluation, an adoption-gated setup showed positive deltas on HotpotQA, MATH 500/AIME, and MMLU, but negative same-model cases made him skeptical of unconditional debate or ensemble loops. Target architecture: single agent → external verification → escalate only when evidence is insufficient. He's packaging this into AdaptOrch (disclosed as his own product).

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