agentlens-xray is an open-source tool for debugging AI agents locally. It provides fork and replay capabilities, observability, and tracing for LLM-based agents, helping developers understand and improve agent behavior.
In the LLM eval & observability space, agentlens-xray takes a focused approach. It focuses on debugging and observing AI agent behavior locally with advanced fork and replay tools. agentlens-xray is an open-source project aimed at AI developers and researchers. agentlens-xray is open source under the MIT license. It ships for the command line.
It is developed by BugsBunnyWanders, and it first shipped in 2026. Development happens publicly on GitHub with 7 commits in the last 90 days. Among its 5 catalogued features are fork and replay debugging, local-first operation, and agent observability.
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