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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 v2.1.248 ·

Shell substitution errors redacted on some connections

Failed ! shell substitutions hide their detail on some connections; the full text goes to logs.

You'll notice Improvements
JSON All of v2.1.248
You'll noticeTier: how much it should matter to you
2Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
ElsewhereArea: what it touches
ImprovementsKind: in v2.1.248,
ImprovementsSection of the release
What

When a ! shell substitution in your prompt fails a permission check or fails to spawn, on certain connection types the message you and the model see has the detail stripped; the full message goes to the error log instead.

Details
  • Selected by the kind of session, not by a flag you can set.
Evidence

(detail withheld on this connection)

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

See this entry in the whole of v2.1.248 →

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