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

Cleared sync folders get a FILE_SYNC_STOPPED.md marker

You'll notice
Useful3 Signal3
File Sync

When sync clears a folder it leaves a FILE_SYNC_STOPPED.md explaining what happened.

What

When directory sync clears a repository folder, it moves the contents aside (.git first) and leaves a file called FILE_SYNC_STOPPED.md at the root explaining what happened, listing anything it could not move.

Details
  • Each listed name is sanitised and truncated to 120 characters with an ellipsis.
  • Failures are recorded as telemetry: unlisted entries, rename failures and marker-write failures, plus read/write failures for the persisted record.
  • That record tracks a phase of clearing, cleared or untouched.
  • Whether this runs at all depends on directory sync being active for your session.
Evidence

These entries could not be moved and are still here:

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 v2.1.248 →