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Claude Code1 min read
Claude Code subagents — what they are and when to use one.
Subagents let you delegate well-scoped work to a fresh context. Here's the pattern.
Overview
Claude Code supports subagents — child agents you can spawn for specific tasks. They run with their own context window and return a summarised result. For complex work, they keep your main conversation clean.
When a subagent helps
• Heavy research with lots of source-reading that would clutter your main conversation.
• Code review of a large diff before merging.
• Generating boilerplate for multiple similar files at once.
When it doesn't
Quick edits. The subagent overhead isn't worth it for a 2-line change.
Iterative work where you want full visibility into every step.
Briefing a subagent well
Subagents don't see your main conversation. The prompt must be self-contained: include file paths, what to check, what success looks like, what to report.
Related articles
PreviousClaude Code for Singapore founders — the local context.Next Claude Code MCPs — extending what Claude can do.
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