Reference guide to designing and using Claude Code subagents well - what a subagent actually is (isolated context window, custom system prompt, summary-only return), built-in vs. custom subagents and how to create one via /agents, why the description field shapes both when a subagent triggers and wh
Reference guide to designing and using Claude Code subagents well - what a subagent actually is (isolated context window, custom system prompt, summary-only return), built-in vs. custom subagents and how to create one via /agents, why the description field shapes both when a subagent triggers and what input prompt it's given, defining an output format so a subagent knows when it's done instead of