CodeTraceBench is a large-scale benchmark of 4,316 agent trajectories with human-verified step-level annotations for evaluating trajectory diagnosis systems. Each trajectory records the full action-observation sequence of a coding agent, annotated with incorrect and unuseful step labels.

Part of the CodeTracer project — a self-evolving agent trajectory diagnosis system.

	Dataset Overview… See the full description on the dataset page: https://huggingface.co/datasets/NJU-LINK/CodeTraceBench.