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Sweep 22 Oct 2026 · 21:04Z Build v2.1.309 528 read Stable v2.1.308 Latest v2.1.309 Next v2.1.309 Feeds RSS JSON llms.txt llms-full.txt Unofficial

Claude Code v2.1.228 ·

Agent list explains that names are how you address an agent

Claude gets clearer guidance on addressing agents by exact name across sessions and machines.

You'll notice Improvements
JSON All of v2.1.228
You'll noticeTier: how much it should matter to you
2Useful: my rating, 1 to 5
3Signal: worth watching, 1 to 5
AgentsArea: what it touches
ImprovementsKind: in v2.1.228,
ImprovementsSection of the release
What

The description of the agent-listing tool was rewritten to spell out the four kinds of row it can return: subagents running inside this session, other sessions on this machine, cloud sessions, and Remote Control sessions on other machines. It states that a row's name is the address to send to, that it must be copied exactly, and that the short reference in brackets should only be added when two rows share a name.

Details
  • Part of the text is filled in at runtime with the actual name of the send tool.
Evidence

each row labeled by kind. Names are the address

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

See this entry in the whole of v2.1.228 →

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