Build AI Agent Teams with Claude Code Track/Building Your First Subagent
Build AI Agent Teams with Claude Code Track
Module 2 of 8

Building Your First Subagent

The .claude/agents/ directory, YAML frontmatter, tool restrictions, foreground vs background, and the built-in subagent types.

16 min read

What You'll Learn

  • Set up the .claude/agents/ directory and create a subagent definition file with proper YAML frontmatter
  • Configure subagent fields including name, description, tools, model, permissionMode, and maxTurns
  • Explain the built-in subagent types (Explore, Plan, General-purpose) and when to use each one
  • Build and test a working code reviewer subagent from scratch

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