"You" was the else-branch of session_label: anything the board could not
attribute to an agent it attributed to the person. Every session read back
from disk was one of those, because the agent id lived only in the session
registry and never reached the persisted events — so past agent runs came
back wearing the human's label, carrying their own closing reports
underneath it.
Identity is now a small whole file beside each event log
(state/sessions/<id>.who.json): agent id, the agent's name, the model it
rode, and the task. A file rather than a key on the events, because the
logs are append-only JSONL whose first line every reader takes for an
event — and because the name and the model are nowhere in the stream, so
this is the only thing a restart can read them back from. It is rewritten
only when what the board knows changes, which also covers an agent id that
arrives on a later event.
load_disk_sessions() reads it back, and the label now has three registers
instead of two: the agent's name (persisted, so a restart no longer costs
it), "You" only for a session positively recorded as carrying no agent,
and a neutral "Session · <id>" for a log written before any of this was
recorded. Old logs are not retro-attributed in either direction.
agentFor() in board.html falls back to the persisted identity when this
board no longer holds the live record, so a replayed agent session wears
its model chip from what was written rather than from what happens to be
in memory. What depends on liveness (Hold, the worktree branch) finds
nothing there and stays silent, as before.
tests/test_session_identity.py drives the real ingest → persist → reload
path and the page's own chip functions in node.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
