What
Background watchers that report new comments on an artifact can now be re-established when a session resumes on a host surface, by rescanning the end of the session transcript instead of relying on the newer session-record store.
Details
- The rescan reads the transcript from a saved byte offset and refuses if the file shrank, or grew by more than 8 MB, or if the appended region does not start on a line boundary and end with a newline.
- Only watcher records whose session id matches the current session are replayed.
- The watcher messages gained a host-surface variant that drops the
/tasks,/loginandclaude agentssuggestions, since those commands do not exist on those surfaces.
Evidence
artifact-comment-monitor
Strings lifted out of the shipped bundle, so the claim above can be checked against them.
One source agreesOne thing we can check says the same as this entry.
Anthropic's release notes agree
Fixed a background session showing "opening…" forever in claude agents after its terminal host process died; the row now fails within…