WezTerm Panel Layout Fix

Problem

WezTerm was not creating the correct panel layout for pi-teams. The desired layout is:

Main controller panel on the LEFT (takes 70% width)
Teammate panels stacked on the RIGHT (takes 30% width, divided vertically)

This matches the layout behavior in tmux and iTerm2.

Root Cause

The WezTermAdapter was sequentially spawning panes without tracking which pane should be the "right sidebar." When using split-pane --bottom, it would split the currently active pane (which could be any teammate pane), rather than always splitting within the designated right sidebar area.

Solution

Modified src/adapters/wezterm-adapter.ts:

Added sidebar tracking: Store the pane ID of the first teammate spawn (sidebarPaneId)
Fixed split logic:
- First teammate (paneCounter=0): Split RIGHT with 30% width (leaves 70% for main)
- Subsequent teammates: Split the saved sidebar pane BOTTOM with 50% height
Used --pane-id parameter: WezTerm CLI's --pane-id ensures we always split within the right sidebar, not whichever pane is currently active

Code Changes

private sidebarPaneId: string | null = null; // Track the right sidebar pane

spawn(options: SpawnOptions): string {
  // First pane: split RIGHT (creates right sidebar)
  // Subsequent panes: split BOTTOM within the sidebar pane
  const isFirstPane = this.paneCounter === 0;
  const weztermArgs = [
    "cli",
    "split-pane",
    isFirstPane ? "--right" : "--bottom",
    "--percent", isFirstPane ? "30" : "50",
    ...(isFirstPane ? [] : ["--pane-id", this.sidebarPaneId!]), // Key: always split in sidebar
    "--cwd", options.cwd,
    // ... rest of args
  ];
  
  // ... execute command ...
  
  // Track sidebar pane on first spawn
  if (isFirstPane) {
    this.sidebarPaneId = paneId;
  }
}

Result

✅ Main controller stays on the left at full height ✅ Teammates stack vertically on the right at equal heights ✅ Matches tmux/iTerm2 layout behavior ✅ All existing tests pass

Testing

npm test -- src/adapters/wezterm-adapter.test.ts
# ✓ 17 tests passed

2.1 KiB Raw Blame History