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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 v2.1.238 Home All releases ←olderv2.1.237 v2.1.239newer→
Claude Code v2.1.238

Ambiguous agent names now say which ID to use

You'll notice
Useful3 Signal2
Agents

Ambiguous agent names now tell you to use the full name@team ID or the task ID.

What

When a name matches more than one agent, the error now distinguishes several teammates sharing the name from a name that matches both a teammate and a background agent, and tells you to use the full name@team agent ID or the task ID.

Details
  • The name resolver also reports whether any of the ambiguous candidates is still running.
Evidence

Use the full agent ID (name@team) for the teammate or the task ID for the background agent.

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

Related

Other releases about the same thing. Found by shared names or similar wording; neither means one caused the other.

See this entry in the whole of v2.1.238 →