A release transaction that never reached anchor_pushed has no artifact: tx.Ref
is empty and no successor can pick anything up. The event handler still kept
its session mapping alive on TaskReleased/TaskBlocked/TaskFailed, so once the
pane was gone the mapping was immortal. health() reports ActiveTask straight
out of w.sessions, so the coordinator saw the harness as permanently busy and
never leased to it again. It produced no log line at all.
Found live on workpc-claude, stuck at phase "prepared" behind a rejected
handoff artifact. Freeing it needed hand surgery on the worker's state file.
Keep the mapping only while an anchor actually exists. Drop the transaction
with it, since nothing can advance it.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_011xsXyr5J1RACo71YeKG3Pu
kami
2dc90bd277