Claude Code Dynamic Workflows: Run Up to 1,000 Parallel Subagents

Anthropic's Opus 4.8 launch (May 28) shipped Dynamic Workflows as a research-preview layer inside Claude Code. You can now write orchestration scripts that spawn tens to hundreds of parallel subagents (capped at 16 concurrent, 1,000 total per run). Crucially, workflows save checkpoints mid-run, so interrupted long-running jobs can resume rather than restart from zero. This changes the economics of large agentic tasks like codebase-wide refactors or multi-file test generation.

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Sources: TechCrunch · MarkTechPost