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Sweep 02 Oct 2026 · 18:55Z Build v2.1.288 509 read Stable v2.1.285 Latest v2.1.287 Next v2.1.288 Feeds RSS JSON llms.txt llms-full.txt Unofficial
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Claude Code v2.1.287 ·

Sandbox reports its file restrictions unavailable in different cases, now Linux-specific

On Linux, the sandbox's file protection is reported unavailable when a platform check passes, and in locked mode when it is disabled

You'll notice Improvements
JSON All of v2.1.287
You'll noticeTier: how much it should matter to you
2Useful: my rating, 1 to 5
1Signal: worth watching, 1 to 5
ElsewhereArea: what it touches
ImprovementsKind: in v2.1.287,
ImprovementsSection of the release
What

The sandbox is a protective boundary that limits what commands run by Claude Code can touch, including which files. Claude Code checks whether the file part of that protection is available, and it now reports it as unavailable in these cases:

  • on Linux, when a platform check passes
  • in locked mode, when the sandbox's filesystem setting is disabled

Before, it reported the file protection unavailable in any mode other than the personal one whenever the filesystem setting was disabled.

Why

This changes when the sandbox's file restrictions are offered, especially on Linux, so the options you see there may differ from before.

How sure we are
Something disagreesSomething we can check disagrees with this entry, or the writer said they could not settle it.
The writer flagged doubtIt is not clear what the Linux platform check tests.

See this entry in the whole of v2.1.287 →

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