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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 v2.1.229 ·

Whitespace-only prompts now tell you nothing was sent

A whitespace-only prompt now tells you plainly that nothing was sent to the model.

You'll notice Bug Fixes
JSON All of v2.1.229
You'll noticeTier: how much it should matter to you
3Useful: my rating, 1 to 5
1Signal: worth watching, 1 to 5
CLIArea: what it touches
Bug FixesKind: in v2.1.229,
Bug FixesSection of the release
What

In non-interactive runs, a prompt that contains only spaces or newlines now returns a warning instead of failing silently. The result reads "Blank prompt — the message was only whitespace, so nothing was sent to the model."

Details
  • The turn ends without querying the model at all, so no tokens are spent.
  • Previously the empty submission was only recorded internally, with no message back to the caller.
Evidence

the message was only whitespace, so nothing was sent to the model.

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

See this entry in the whole of v2.1.229 →

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