Agent Creator

Guide for creating effective Claude Code custom agents.

About Agents

Agents are specialized subagent definitions (.claude/agents/*.md) that provide domain expertise. When invoked, the agent's markdown body becomes the subagent's system prompt.

Key distinction from other config types:

• Skills: Automate repetitive multi-step workflows with bundled resources
• Rules: Enforce coding standards and constraints (always loaded)
• Agents: Define domain expert personas with scoped tools and models

Core Principles

Description is King

The description field is the primary auto-triggering mechanism. Claude reads ALL agent descriptions to decide delegation. Write action-oriented triggers: