tmux launcher <> spawn vs split-window glitch?

[DotDotJames]

canvas plugin tried to spawn initially and sorted itself via self-prompting that it needing to do split-window, unclear if plugin prompt or default command issue. here's what worked

Bash(tmux split-window -h "cd /home/me/.claude/plugins/cache/claude-canvas/canvas/0.1.0 && bun
run src/cli.ts show calendar --scenario meeting-picker --config '{"calendars": [{"name":
"You", "color": "blue", "events": [{"id": "1", "title": "Your Meeting",
"startTime": "2026-01-09T09:00:00", "endTime": "2026-01-09T10:00:00"}, {"id": "2",
"title": "Lunch", "startTime": "2026-01-09T12:00:00", "endTime":
"2026-01-09T13:00:00"}]}, {"name": "Alice", "color": "green", "events": [{"id":
"3", "title": "Alice Call", "startTime": "2026-01-09T10:30:00", "endTime":
"2026-01-09T11:30:00"}, {"id": "4", "title": "Alice Project", "startTime":
"2026-01-09T14:00:00", "endTime": "2026-01-09T15:30:00"}]}, {"name": "Bob", "color":
"red", "events": [{"id": "5", "title": "Bob Standup", "startTime":
"2026-01-09T09:30:00", "endTime": "2026-01-09T10:00:00"}, {"id": "6", "title": "Bob
Review", "startTime": "2026-01-09T15:00:00", "endTime": "2026-01-09T16:00:00"}]}],
"slotGranularity": 30, "minDuration": 30, "maxDuration": 60}'")