DeepSeek Harness Plugin: dsh-replay-lab

dsh-replay-lab is a plugin for DeepSeek Harness designed to address the difficulty of reproducing discrepancies that arise from interactions between models and the Harness. By freezing turns and isolating candidate sessions, it provides request-surface replay, A/B experiments, and multi-dimensional comparison features, helping developers analyze reasoning paths, costs, and debug long trajectories or regression issues. The plugin supports custom prompts, ensures data safety without affecting source sessions, and is suitable for in-depth analysis of the combined effects of “model × Harness.”