Dynamic Workflows in Claude Code

Anthropic has introduced the Dynamic Workflows feature in Claude Code. For large-scale tasks that are difficult for a single agent to handle, this feature writes an orchestration script and runs dozens to hundreds of subagents in parallel to complete the work.

Key use cases include:

• Codebase-wide bug hunting, profiler-driven optimization, and security audits.
• Large-scale migrations and modernization efforts that require modifying thousands of files.
• High-stakes tasks where cross-checking results between agents improves accuracy.

As a real-world example, Jarred Sumner used this feature to rewrite Bun from Zig to Rust, porting about 750,000 lines of Rust code in 11 days.

The feature is available in the Claude Code CLI, Desktop, VS Code extension (Max, Team, Enterprise plans), and the API (including Amazon Bedrock, Vertex AI, and Microsoft Foundry). Users can let the agent automatically decide on the workflow via the ultracode setting, or request it directly.

However, since token consumption is significantly higher than in a typical session, it's recommended to start with tasks that have a limited scope.