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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 v2.1.305 ·

Sandbox check for unattended serving now logs why it failed

If the command sandbox can't be checked for unattended serving, Claude Code now logs a warning and reports sandbox_failed_to_start

You'll notice Improvements
JSON All of v2.1.305
You'll noticeTier: how much it should matter to you
2Useful: my rating, 1 to 5
3Signal: worth watching, 1 to 5
Unattended ServingArea: what it touches
ImprovementsKind: in v2.1.305,
ImprovementsSection of the release
What

Before serving unattended, Claude Code checks whether commands are confined by the sandbox, the restricted area that limits what commands can reach. If the sandbox cannot be asked, that check used to fail silently. It now logs the warning "unattended-serving consent: command sandbox could not be asked, taken as not confining" and reports the reason sandbox_failed_to_start. Commands are still treated as not confined.

Why

When unattended serving is refused because the sandbox did not start, the log now says so, which makes the cause easier to find.

See this entry in the whole of v2.1.305 →

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