Source Intelligence

DisclaimerUnofficial, and not affiliated with Anthropic. Nearly all of this is read straight out of what ships: npm bundles, captured prompts, published docs. Anthropic's own notes go in verbatim, marked as theirs. The rest is my reading, and every entry carries the strings behind it. If one looks wrong, vote it down and say why.

All of v2.1.63 Home All releases olderv2.1.62 v2.1.64newer
Claude Code v2.1.63

/batch Command

What

New slash command that researches and plans a large-scale change, then executes it in parallel across 5–30 isolated git worktree agents that each open a PR.

Usage
/batch migrate from react to vue
/batch replace all uses of lodash with native equivalents
/batch add type annotations to all JavaScript files
Details
  • Requires a git repository (spawns agents in isolated worktrees)
  • Each agent independently implements its portion and opens a PR
  • User-invocable only (disableModelInvocation: true) — the model cannot invoke this on its own
  • Operates in two phases: first plans in plan mode, then spawns parallel workers after approval
Evidence

Slash command registration (search for name: "batch", "Research and plan a large-scale change")

Strings lifted out of the shipped bundle, so the claim above can be checked against them.

See this entry in the whole of v2.1.63 →