Task Success Rate (Succ Rate) is defined as the proportion of successful goal achievements in a given environment or task. Success is determined by whether the real state or environmental goal is actually achieved, rather than solely based on claims made in the output text. It comprehensively reflects planning, execution, and interaction capabilities, serving as a core evaluation metric for tasks such as Agents, robotic manipulation/navigation/motion control, and reinforcement learning. It is typically reported as a percentage or a score between 0 and 1, with higher values indicating better performance.