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Codeman maintainer d2e72143e8 feat(tiles): the grid holds at most 6 tiles (owner decision 7)

Six was tested smooth on the owner's desktop; nine missed the headless
frame bar and is untested on real hardware. TILE_GRID_MAX (constants.js)
is now 6 and stays the one cap every limit reads; the layout table gets
its own bound, TILE_LAYOUT_MAX = 9, so the 7 to 9 layouts keep working
(unreachable) and going back to nine is that one line.

Every way in stops at the cap: opening, addTile, a tile's +, a session
Run makes, Ctrl/Cmd+click, the picker, "Open group as tiles", and a stored
grid with more ids (it comes back as its first six, focus kept only if it
survives, a dropped zoom cleared, row fractions that no longer match the
3x2 reset). The limits now go through one helper, _tileGridLimit(), whose
texts say which limit binds: "Up to 6 tiles" / "The grid holds at most 6
tiles" when it is the cap, "This window fits N" when it is the window.

Docs: decision 7 and an as-built entry in the spec, CLAUDE.md, the
invariants, the wiki's Tile Grid and Dashboard pages.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

2026-10-06 23:18:29 +02:00

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Tile Grid

Watch and drive up to six sessions at once, side by side in one window. Each tile is a full live terminal: it reads, it takes your keystrokes, and it shows at a glance whether its agent is working, idle, or waiting on you.

The grid is a desktop feature. It needs a window at least about 1180px wide, and it is never offered in a popped-out session window.

Turning it on

App Settings → Header & Panels → Tiles. This is a per-device setting, off by default, so turning it on at your desk never puts the button on your phone. It shows a Tiles button in the header, beside Split, and enables Ctrl+Shift+G.

Opening a grid

Tiles button: with the grid closed it opens a picker, a checkbox per open session in tab order. It starts with the grid you last had (or the session you are on), says how many tiles this window fits, and greys out the rest. Open tiles shows them. With the grid open, the same button closes it.
Ctrl+Shift+G: toggles the grid. Opening brings back the grid you last had, else an open split as two tiles, else the session you are on.
Ctrl+click (or Cmd+click) a tab: adds that session to the grid and focuses it, opening the grid if it was closed. On macOS use Cmd: Ctrl+click there opens the tab's rename instead.
Drag a tab onto a tile to replace that tile with it (the replaced session keeps running), or onto an empty slot to add it. Dragging a session that is already tiled onto another tile swaps the two.
"Open group as tiles" in a tab group's menu, in the vertical tab rail with groups.
Run: a session you start from this browser tab's Run button while the grid is open joins it. Sessions started elsewhere (an agent, another device, a cron job) do not.

The layout follows the tile count: 1x1, 2x1, three side by side on a wide screen (else a 2x2 with one empty slot), 2x2, 3x2. The grid holds at most six tiles, fewer when the window is too small for six; the picker and a tile's + say which limit applies.

A tile

Each tile has a small header: ● name ......... ⋯ ⤢ + ×

Part	What it does
`●`	The session's state: working, idle, waiting on you, needs you (red, and the tile's border pulses), error, ended. Hover the header for how long.
name	Double-click to rename the session.
`⋯`	The session menu: options, open in a new window, close the session.
`⤢`	Zoom: the tile fills the grid; press it again (or `Alt+Shift+Enter`) to get the grid back.
`+`	Add a session that is not tiled yet, or start a new session in this tile's case.
`×`	Remove the tile. The session keeps running; close it from `⋯` if you want it gone.

Click a tile to focus it. The focused tile has the accent border, takes your keyboard, and is the session every panel follows: files, git status, respawn and Ralph, subagent windows, voice and image paste. Tabs of tiled sessions carry a small underline.

Drag the thin lines between tiles to resize columns and rows. A tile never gets smaller than about 60 columns; when the window is too small for all the tiles, the grid shows the focused one on its own until the window is big enough again.

A tile whose session is not running shows Not attached with an Attach button. A tile whose agent exited inside its pane says so instead; close that session from ⋯.

Keys

Shortcut	Action
`Ctrl+Shift+G`	Open or close the grid.
`Alt+Shift+Arrows`	Focus the tile to the left, right, above or below.
`Alt+Shift+Enter`	Zoom the focused tile, or restore the grid.
`Ctrl+Tab`, `Alt+[` `]`	Cycle through the tiles.
`Ctrl+L`	Clear the focused tile.
`Ctrl` `+` / `Ctrl` `-`	Tile font size (tiles have their own, smaller font).

All of them can be rebound in App Settings → Shortcuts, where Remove Focused Tile can also get a key. Outside the grid, Alt+Shift+Arrows and Alt+Shift+Enter go to the terminal as usual. With the Tiles setting off, Ctrl+Shift+G does nothing.

Leaving the grid

Clicking the tab of a session that is not tiled (or picking it with Alt+1-9 or the session finder) shows that session on its own, the normal single view. The grid is remembered: the Tiles button or Ctrl+Shift+G brings it straight back. Going Home does the same. Narrowing the window below the desktop width also returns to the single view.

The grid is saved on this device and comes back when you reload the page, with its focus, zoom and column widths. A session that was closed in the meantime is simply left out.

The grid and Split are never open together: opening the grid turns an open split into two tiles, and Split is unavailable while the grid is open.

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