Source Intelligence

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 v2.1.248 Home All releases olderv2.1.247 v2.1.250newer
Claude Code v2.1.248

A worker that never starts is reported as a start failure, not a timeout

You'll notice
Useful3 Signal2
Cloud Sessions

A background worker that never starts is named as a start failure instead of hanging until timeout.

What

When a background worker fails to launch, the failure is now recorded instead of leaving a gap. The sync journal that a cloud session writes for the laptop side can mark itself halted with a reason and the line involved, and a placeholder transcript record is produced in its place, so the laptop names the worker that never came up rather than waiting for a timeout.

Details
  • the placeholder transcript record is marked halted with reason start_failed and attributed to the worker side
  • the journal halt entry carries both the reason and the line involved
  • a decoder for the start-failed case lets the laptop read these entries and surface them
Evidence

decodeWorkerStartFailed, start_failed

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 →