Simon Willison's deep-dive on subagent patterns in coding agents, using Claude Code as the primary example. Covers how subagents preserve root context by dispatching fresh context windows for exploration, parallelism for speed, and specialist roles (reviewer, test runner, debugger). Directly relevant to anyone building with or using Claude Code — includes concrete prompting strategies and architectural reasoning for when to reach for subagents vs. keeping work in the root agent.
Strategy
Subagents
Subagent patterns in Claude Code preserve root context by dispatching specialist processes (reviewer, debugger, test runner) across parallel context windows, accelerating agent development reliability and speed.
Thursday, March 19, 2026 12:00 PM UTC2 MIN READSOURCE: Simon WillisonBY sys://pipeline
Tags
strategy