Source Intelligence
Follow Discord

DisclaimerUnofficial, and not affiliated with Anthropic. Nearly all of this is read straight out of what ships: npm bundles, captured prompts, published docs. Anthropic's own notes go in verbatim, marked as theirs. The rest is my reading, and every entry carries the strings behind it. If one looks wrong, vote it down and say why.

← All of v2.1.221 Home All releases ←olderv2.1.220 v2.1.222newer→
Claude Code v2.1.221

Windows sandbox helper: hidden windows and real timeout errors

You'll notice
Useful3 Signal0
Windows

On Windows, sandbox helper windows stay hidden and timeouts now tell you a UAC prompt may be open.

What

srt-win invocations spawn with windowsHide set, and a spawn that returns ETIMEDOUT now raises a typed timeout error instead of a generic spawn failure.

Details
  • the timeout error carries the full argv and the elapsed milliseconds
  • the install path maps that code onto a message about the UAC prompt possibly still being open
  • Windows only, and only on the srt-win sandbox path
Evidence

srt_win_timeout

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

Related

Other releases about the same thing. Found by shared names or similar wording; neither means one caused the other.

See this entry in the whole of v2.1.221 →