There is a moment in every AI coding workflow where you wish you could roll the tape back. The agent did something on Tuesday. By Thursday the model has shifted. The tool surface has shifted. You cannot reproduce the issue, and you cannot prove the change was sound. Replay is the answer. Akmon's akmon replay command takes a recorded session and re-executes it against the providers and tools that were recorded with it. The output is a pass or fail. In strict mode, it is a CI gate. In default mode, it is a divergence report. This article walks the actual command, the modes, the exit codes, and the failure patterns I have caught with it. Everything here is real Akmon v2.0.0 surface. Why replay matters more than logs A log file tells you what happened. Replay tells you whether the same session would happen again. The two are not the same. If a session passes replay, the artifact is meaningful, even months later. If it diverges, the diff is the bug report. Either way you know more than you did from the log.…