AI Agent Structured Logging 2026

Grepping through text logs is a pain. Use JSON format for structured logs and just feed them straight into the log analysis system.

💡 What You Will Learn

Grepping through text logs is a pain. Use JSON format for structured logs and just feed them straight into the log analysis system.

📜 Table of Contents

• Python loggingConfiguration
• Summary

2026-07-17 10:30:01 INFO Agent started processing request
2026-07-17 10:30:03 INFO Calling tool: search_database

{"timestamp": "2026-07-17T10:30:01Z", "level": "info", "event": "request_start", "user_id": "u123", "request_id": "r456"}
{"timestamp": "2026-07-17T10:30:03Z", "level": "info", "event": "tool_call", "tool": "search_database", "duration_ms": 234}

Python loggingConfiguration

import logging, json

class JsonFormatter(logging.Formatter):
    def format(self, record):
        return json.dumps({
            'timestamp': self.formatTime(record),
            'level': record.levelname,
            'event': record.getMessage(),
            'module': record.module,
        })

Summary