Anthropic Documents Claude Code /batch for Parallel Refactors Across 5 to 30 Agents

Anthropic’s Claude Code documentation now describes /batch as a bundled skill that can decompose a large codebase change into 5 to 30 independent units, present a plan for approval, and run each unit through its own isolated worktree subagent. The command is aimed at repository-wide migrations and mechanical refactors where separate parts of the codebase can be changed, tested, and published independently.