Claude Code subagents are one of the most powerful — and least understood — features in the tool. A subagent is a separate Claude process that your main session can spin up to handle a specific task in parallel. Instead of doing everything one step at a time, Claude can delegate work to multiple subagents running simultaneously.
The best place to start is the pillar guide: Claude Code Subagents — Complete Beginner’s Guide. It explains the concept clearly and walks you through your first real example.
Across 10 posts, this category covers how subagents think, how to use them well, and where they break down.
Picture this: you’re three hours into a complex refactor. Your Claude Code session has read dozens of files, worked through multiple rounds of changes, and built up a rich understanding of your codebase. Then you ask it to also investigate whether these changes break anything in the authentication system — and you watch the context … Read more
