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

Task Tool Renamed to Agent

What

The Task tool has been renamed to Agent to better reflect its purpose. Task is kept as a backward-compatible alias.

Details
  • Tool name changed from "Task" to "Agent"
  • Description changed from "Launch a new task" to "Launch a new agent"
  • "Task" remains as an alias — existing CLAUDE.md files and permissions referencing "Task" will continue to work
  • Hook event descriptions updated from "Task tool call" to "Agent tool call"
Evidence

Tool definition (search for var tq = "Agent", aliases: containing "Task")

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 →