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 v2.1.247 Home All releases olderv2.1.246 v2.1.248newer
Claude Code v2.1.247

Replayed history no longer makes a dead cloud worker look alive

You'll notice
Useful3 Signal3
Cloud Sessions

After reconnecting, replayed old output no longer makes a dead cloud worker look alive.

What

After reconnecting and resuming from a saved position, the CLI could treat old frames being replayed as evidence that the remote worker was still running. Frames are now compared against the time the current connection opened and marked as replayed if they predate it, and only fresh worker frames count as proof of life.

Details
  • The comparison allows 2 seconds of slack; a frame whose date cannot be parsed is conservatively treated as replayed.
  • The connection time comes from the response date header when the server sends one.
  • Frames also carry a worker epoch integer read off the frame.
  • Applies to all cloud sessions on this build, with no setting to turn it off.
Evidence

t.source === "worker" && t.replayed !== !0, connectedSince

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

See this entry in the whole of v2.1.247 →