Claw Lens provides comprehensive observability features for developers working with OpenClaw agents. It enables detailed tracking of costs across different agents and models, real-time monitoring of agent activities, and powerful debugging capabilities through a session timeline, profiler, and context breakdown. Additionally, it includes security audits to ensure safe usage. All functionalities are local, ensuring zero outbound calls, no telemetry, and complete data privacy within your machine. Available in English and Chinese, Claw Lens is an open-source project under the MIT license.