Separate tabs not opening for claude agent teams

[Mika2709]

Hi guys, idk what I'm doing wrong but it doesnt open the single agents in separate screens for me. I see the agents working (not subagents, they are agent teams) I got all the expirmental stuff set up, checked settings etc. soo yea. any idea?

[che-3]

When Claude Code spawns agent teams (sub-agents), they run as child processes within the same terminal session — they don't automatically get separate cmux workspaces/tabs.

To get each agent in its own tab, you have a few options:

Option 1: Use cmux splits manually

• Open multiple workspaces (Cmd+N) or splits (Cmd+D)
• Run each agent in its own pane

Option 2: Use the cmux CLI socket API
You can script workspace creation:

# Create a new workspace and run a command in it
cmux new-workspace

Option 3: Configure Claude Code with hooks
If you're using Claude Code's agent teams feature, the agents are managed by Claude's internal orchestration. They share the same terminal because they're sub-processes, not independent sessions.

The key distinction: cmux manages terminal workspaces (visual tabs), while Claude Code manages agent processes (logical workers). They're separate layers. Claude's sub-agents communicate via IPC, not via separate terminals.

If you want to watch each agent's output separately, consider using Claude Code's --output-format options or logging to separate files that you can tail -f in different cmux panes.

[electroheadfx]

yes me toot I dont understand, I added the cmux skill but it doesn't work. Work only when you run tmux. So what is the purpose of called this product cmux if they dont know at all at tmux. Now with this release the cmux pane are reset when I re launch.

[che-3]

cmux and tmux are completely different tools:

• tmux = terminal multiplexer that runs in your shell, manages sessions/windows/panes via CLI
• cmux = a native macOS terminal app (built on Ghostty) with a GUI — tabs, sidebar, split panes, browser panels, notifications

cmux does NOT use or depend on tmux. The name similarity is coincidental — cmux stands for the project's own branding, not "tmux wrapper."

Regarding agent teams not getting separate tabs: Claude Code's sub-agents are child processes that share the parent terminal. cmux sees them as one process. If you want each agent visible separately, open multiple cmux workspaces (Cmd+N) or splits (Cmd+D) and run each agent manually in its own pane.

The cmux skill you mentioned is for configuring Claude Code's hooks to work with cmux's notification system — it doesn't change how agents spawn terminals.

[electroheadfx]

thanks for clarity