Claude Code Sub-Agents
BlogAnthropic DocumentationJun 14, 2025
AI Summary
The reference docs for Claude Code's sub-agent feature. Each sub-agent runs in its own context window with a custom system prompt, scoped tool access, and independent permissions, and is described in a markdown file with YAML frontmatter under .claude/agents/. The parent agent delegates and receives only a summary back. The pattern that made hierarchical agent context management cheap enough for everyone — not just teams with platform engineers.
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