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Sweep 22 Oct 2026 · 04:32Z Build v2.1.308 527 read Stable v2.1.308 Latest v2.1.308 Next v2.1.308 Feeds RSS JSON llms.txt llms-full.txt Unofficial

Claude Code v2.1.247 ·

Clearer guidance for messages sent to another session

Claude is now told the recipient only sees your message's first line, so it writes self-contained openers.

You'll notice Improvements
JSON All of v2.1.247
You'll noticeTier: how much it should matter to you
3Useful: my rating, 1 to 5
3Signal: worth watching, 1 to 5
Cross-Session MessagingArea: what it touches
ImprovementsKind: in v2.1.247,
ImprovementsSection of the release
What

When Claude sends a message to another session, the tool now tells it that the summary is only a label on your own transcript row and is never transmitted, and that the recipient's human sees only the first line of the message until they expand it, so the first line must be a self-contained sentence rather than a greeting or a bare @-mention.

Details
  • Applies only to the cross-session form of the send-message tool.
  • Effect for you: fewer messages that open with "hi" and hide the point below the fold.
Evidence

A 5-10 word label for your own transcript row (not transmitted

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

See this entry in the whole of v2.1.247 →

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