Your coding agent botched a multi file refactor once in production. You rerun the exact same prompt to debug it, and it works. The model sampled different tokens, a tool returned a different payload, the context drifted, and the failure was gone. This session shows how to capture every nondeterministic input to an agent loop into an append only execution log, replay the failed run step by step, and then turn that replay into reproducible evals so the bug never quietly returns.
This talk has been presented at AI Coding Summit NYC, check out the latest edition of this Tech Conference.
























