Dynamic Workflows in Claude Code: 1000 Subagent Tutorial

Why this guide right now

On May 28, 2026, Anthropic shipped Claude Opus 4.8 alongside a feature called Dynamic Workflows in Claude Code. It is the first time the company has exposed an internal orchestration pattern that its own research teams have been using for months. Instead of Claude walking through a hard task turn by turn and burning context with every tool call, Claude writes a JavaScript script that spawns up to 16 parallel subagents at a time, with a hard cap of 1,000 subagents per workflow. The script runs in the background. Only the final answer lands back in your session.