| **Header tab strip** | The default. Wraps to a second row on desktop, scrolls sideways on a phone. |
| **Left sidebar** | A vertical list with a filter box and a live session count. `Alt+B` collapses it to a narrow rail that keeps the status dots and task badges visible. On a phone it is an off-canvas drawer rather than a docked rail. |
It is the same list either way, just re-hosted: tab order, drag-to-reorder, the `Alt+1`
to `Alt+9` numbers and every status colour below behave identically in both. The setting is
per device, so a sidebar on your desktop does not force one onto your phone.
## Session tabs
One tab per session, in your order, and that order syncs across your devices.
**Status is carried by the dot and the tab's own styling:**
| Connection dot | Always on | SSE connection health. Green is connected. |
| Font size `-` / `+` | Always on | `Ctrl +` / `Ctrl -` do the same. |
| CPU / MEM bars | On | Server resource use. |
| File Viewer | On | Toggles the file browser panel. |
| Settings gear | Always on | App Settings. |
| Plan usage chip | On, desktop only | Live Claude subscription usage. Claude-only, and needs its telemetry exporter, which the same setting installs. |
| Session Manager | Off | The full session list, live and historical. |
| Approvals bell | Off | Cross-session queue of prompts waiting on a human. Appears only when the count is above zero. Never shown on phones. |
| Read My Mind 🧠 | Off | Predicts your next prompt for this case. Claude-only. |
| Attachments | Off | Registered external files. |
| Away Digest | Off | What happened while you were gone. |
| Last Response | Off | Readable view of the agent's last answer, useful on phones. |
| Ultracode / Workflow | Off | Live workflow-run agents. |
| Notifications | Off | Notification history and settings. |
| Lifecycle Log | Off | Session start, exit, and kill audit trail. |
| Cron ⏰ | Off | Scheduled jobs. |
| Multi-monitor | Off, macOS | Opens a window spanning every display. |
| Tunnel indicator | When a tunnel runs | Cloudflare tunnel status. |
| Admin panel | Multi-user only | User administration. |
New header controls never appear on phones. Phone layout is deliberately minimal and is
covered in [Mobile Guide](Mobile-Guide).
## Connection state
The dot in the header is the quick read. Two louder surfaces exist because a cached page
with no server behind it used to look identical to a page with no sessions:
- **A full-screen overlay** when the page has never loaded server state. There is nothing
behind it worth preserving.
- **A banner** when the connection drops after state had loaded, so your scrollback stays
readable.
Both wait about 2.5 seconds before appearing, so a deploy that restarts the server does not
flash a warning at you every time. If the browser reports itself offline, the grace period
is skipped.
There is also a watchdog for the case where the connection stops delivering without
erroring. If the server's heartbeat stops arriving, Codeman reconnects on its own rather
than sitting on a green dot showing frozen data.
## The terminal
A real terminal: xterm.js in the browser, a real PTY on the server, tmux in between. Full