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Sweep 12 Nov 2026 · 23:00Z Build v2.1.323 540 read Stable v2.1.311 Latest v2.1.323 Next v2.1.323 Feeds RSS JSON llms.txt llms-full.txt Unofficial

Claude Code v2.1.323 ·

Claude is told to treat outside text in REPL output as data

REPL output that may contain Artifact content or Remote Control text now carries a note telling Claude to treat it as data, not instructions

You'll notice Improvements
JSON All of v2.1.323
You'll noticeTier: how much it should matter to you
2Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
REPLArea: what it touches
ImprovementsKind: in v2.1.323,
ImprovementsSection of the release
What

Some command output reaches Claude after a delay. When that output may contain text from people or devices other than you, Claude Code now adds a sentence telling Claude to treat it as data, not instructions. Two cases get the note:

  • Artifact content that people other than you may have written.
  • Text from a Remote Control session on another device.

The note stays attached when the output arrives in late pieces.

Why

This guards against prompt injection, where text written by someone else tries to give Claude orders. Claude is told to read such text, not obey it.

See this entry in the whole of v2.1.323 →

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