Debug Output Filtering

What: Filter debug messages by category using --debug=pattern syntax How to use:

# Show only MCP-related debug messages
claude --debug=mcp <command>

# Show all debug messages except verbose ones
claude --debug=!verbose <command>

# Show multiple specific categories
claude --debug=mcp,server1,api <command>

Details:

• Supports both include patterns (show only these) and exclude patterns with ! prefix (hide these)
• Automatically categorizes messages based on prefixes, MCP server names, and other patterns
• Cannot mix include and exclude patterns in the same filter
• Helps reduce noise when debugging specific components