Anthropic rolled out dynamic workflows in its Claude Code platform, letting the AI orchestrate dozens of parallel sub‑agents within a single session. The feature promises to shrink projects that once took quarters into days, but it also burns significantly more tokens than standard sessions. Users can enable it via the CLI, desktop app, VS Code extension, or through the Claude API on Bedrock, Vertex AI and Microsoft Foundry.

Early‑access teams have already applied the system to codebase‑wide bug hunts, security audits, and massive migrations. A notable case is Jarred Sumner’s rewrite of the Bun runtime from Zig to Rust, where dynamic workflows generated roughly 750 k lines of Rust, achieved 99.8% test‑suite pass‑rate, and completed the port in eleven days. The process involved parallel agents mapping lifetimes, translating files, and iterating build‑test loops until convergence.

When a workflow starts, Claude plans from the user prompt, splits the job into subtasks and fans them out to independent agents that verify each other's output. Progress saves continuously, so interruptions resume without loss. Admins on Enterprise plans can disable the feature, while Max and Team customers have it on by default. The rollout gives developers a tool that can tackle weeks‑long engineering work in hours.