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Sweep 25 Sep 2026 · 19:33Z Build v2.1.283 504 read Stable v2.1.274 Latest v2.1.283 Next v2.1.283 Feeds RSS JSON llms.txt llms-full.txt Unofficial

Claude Code v2.1.280 ·

Bash tool now reports a 'sandbox_violation' remedy on tool results

Bash tool results now flag a sandbox_violation remedy when a sandboxed command's stderr shows a sandbox violation

You'll notice No documentation found Improvements
JSON All of v2.1.280
You'll noticeTier: how much it should matter to you
2Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
SandboxArea: what it touches
ImprovementsKind: in v2.1.280,
ImprovementsSection of the release
What

When a Bash command runs inside a sandbox (an isolated environment that restricts what a command can do, such as file or network access) and the sandbox notes that the command tried to do something it blocked, the tool result now includes an extra field: remedy: { kind: "sandbox_violation" }. This only appears when the command actually finished running rather than being interrupted.

Why

This surfaces sandbox restriction problems directly in the tool result instead of leaving them buried in stderr text, making it easier to notice when a command failed because of sandboxing rather than a genuine error in the command itself.

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Names in the bundlesandbox_violation

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