An agent that publishes an artifact arms a monitor for its comments and
ends its turn. Claude Code shows that on the footer as `1 Artifact
comment monitor`, and #473 put that chip on the list of background work,
so the session counted as watching and its idle prompt opened already
acknowledged. Unlike every other chip on the list, that monitor waits
on the user: the agent hears nothing until somebody comments.
Claude's `watchingLine` now refuses any footer that carries the chip,
through a lookahead over the whole row, so a shell running beside the
monitor cannot report the session as watching either.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>