SLF4J - Quick Reference When to Use This Skill - Standard logging API for Java - Integration with Logback, Log4j2 - Java logging best practices Deep Knowledge : Use with technology: for comprehensive documentation. Essential Patterns Logger Declaration Logging Levels Parameterized Logging Exception Logging MDC (Mapped Diagnostic Context) Conditional Logging Fluent API (SLF4J 2.0+) When NOT to Use This Skill - Logging framework configuration : Use or Log4j2 skills for XML/config - Performance tuning : Configuration-level optimization is in implementation skills - Transport/appender setup : Tha…