When an agent run is wrong with no known-good baseline, what do you debug against?

Sensitive-Parsnip-12 · reddit · 2026-09-07

A Reddit poster asks how to debug agent/workflow runs that are clearly wrong when there's no known-good run to compare against. Candidate approaches include checking invariants and expected state, replaying the same input, config/version checks, business-outcome validation, and manually reading traces. The poster notes the trusted reference likely depends on the kind of system, and asks what works in practice for multi-step agent systems.

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