AI Agent Logging Best Practices 2026

When an Agent goes wrong, you have no idea what it was thinking. Good logging captures every step of the Agent's reasoning, tool calls, and decision rationale—an essential debugging tool.

💡 What You Will Learn

When an Agent goes wrong, you have no idea what it was thinking. Good logging captures every step of the Agent's reasoning, tool calls, and decision rationale—an essential debugging tool.

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{
  "session_id": "sess_abc123",
  "timestamp": "2026-07-16T10:30:00Z",
  "user_input": "...",
  "steps": [
    {"step": 1, "action": "reasoning", "content": ""},
    {"step": 2, "action": "tool_call", "tool": "get_weather", "args": {"city": ""}, "result": "32°C"},
    {"step": 3, "action": "output", "content": "32°C"}
  ],
  "total_tokens": 470,
  "duration_ms": 3200
}

Summary