Logging Patterns Skill

Rule: JSON is the default log format. Plain text logging is only for local development with human-logs profile. Production, CI/CD, and Kubernetes environments must use structured JSON.

When to Use

• User says "add logging" / "improve logs" / "debug this"
• Analyzing application flow from logs
• Setting up structured logging (JSON)
• Request tracing with correlation IDs
• AI/Claude Code needs to analyze application behavior

AI-Friendly Logging

Key insight: JSON logs are better for AI analysis - faster parsing, fewer tokens, direct field access.

Why JSON for AI/Claude Code?