agent-replay-trace: Load and Step Through Agent Traces for Debugging

📰 Dev.to · Mukunda Rao Katta

Learn to debug agent traces with agent-replay-trace, a Python library for loading and stepping through JSONL agent traces

intermediate Published 25 May 2026
Action Steps
  1. Install the agent-replay-trace library using pip
  2. Load a JSONL agent trace file using the library's load function
  3. Step through the trace turn by turn using the step function
  4. Filter the trace by event kind using the filter function
  5. Compute turn durations using the compute_turn_durations function
Who Needs to Know This

Developers and engineers working with agent-based systems can benefit from this library for debugging and testing purposes. It can be used by AI engineers and researchers to analyze and improve agent performance

Key Insight

💡 The agent-replay-trace library provides a simple and efficient way to debug and analyze agent traces, allowing developers to identify and fix issues quickly

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🚀 Debug agent traces with ease using agent-replay-trace, a Python library for loading and stepping through JSONL agent traces 💻

Key Takeaways

Learn to debug agent traces with agent-replay-trace, a Python library for loading and stepping through JSONL agent traces

Full Article

A Python library that loads JSONL agent traces and lets you step through them turn by turn, filter by event kind, and compute turn durations.
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