Busy agents emitted a snapshot-changed broadcast per tool turn; every event
made the renderer reload the full snapshot while the main process re-read
whole audit tables synchronously, and ChatTimeline re-rendered every message
with per-row linear scans - quadratic work per keystroke of agent activity
until clicks stopped responding. Root fixes at each layer: all broadcasts
funnel through one 200ms-coalesced notifier (unit-tested), the renderer
reloads at most every 800ms with a trailing load, audit/access snapshot
reads use SQL limits instead of full-table scans, and the timeline renders
the latest 150 messages via O(n) lookup maps with a real show-earlier
control. cred.txt is now gitignored so the Composio key cannot leak.
ZacharyZhang-NY
f13ef48a3e