The Agent tab
The Agent tab is the Claude Code terminal in every session: send prompts, paste images, compose multi-line input, rewind, and choose the permission mode.
The Agent tab is where you talk to Claude Code: the real Claude Code CLI running in a terminal inside the session's worktree, where you type prompts, watch the agent work, and drive its interactive UI in real time.
It's the default view when you open a session (⌘1). It runs the Claude Code CLI inside the session's worktree and streams its output live, exactly as the agent produces it. Switch away and come back — the terminal stays warm and rehydrates with its full scrollback intact.
Sending prompts
Click the terminal to focus it, then type as you would in any terminal. Claude Code's own slash commands and interactive prompts work as normal.
| Enter | Submit the current prompt to Claude Code |
| ⇧Enter | Insert a newline instead of submitting — for multi-line prompts |
| ⌘C | Copy the selected text to the clipboard |
| ⌘V | Paste the clipboard (text or an image) into the prompt |
| ⌃C | Interrupt the agent (Ctrl+C when no text is selected) |
Pasting when the clipboard holds an image — a screenshot, or an image copied from another app — drops it straight into the prompt as an attachment, so you can ask Claude Code about it without saving a file first.
Rich input
For longer prompts, open the rich input — a dedicated multi-line compose box at the bottom of the tab. Toggle it with ⌘I. While it's focused it keeps the keyboard, so the terminal won't steal your keystrokes; focus returns to the terminal after you submit or close the box.
Need more room? Drag the divider between the terminal and the compose box to resize it — the terminal reflows to fit, and the height you pick is remembered across sessions and restarts.
Two settings tune it:
| Setting | Default | What it does |
|---|---|---|
| Open the rich input box automatically | Off | Show the compose box automatically instead of starting collapsed |
| Send with Ctrl+Enter / Cmd+Enter | Off | When off, ⌘Enter pastes the composed text into the terminal so you can review before pressing Enter; when on, ⌘Enter sends it immediately |
Rewind
When Show the Rewind button (Settings → Agent) is on (the default), a Rewind control appears on the tab. It opens Claude Code's /rewind checkpoint picker, letting you roll the conversation — and the file edits made since a checkpoint — back to an earlier point. Turn the setting off to hide the button.
Dragging files in
Drag a file or folder from your OS file manager and drop it anywhere on the terminal. Plexus inserts the item's absolute path at the cursor, quoted only when the path needs it. No newline is added, so you can drag a file in mid-sentence to reference it before pressing Enter. A highlight ring marks the terminal under the cursor while you drag.
Permissions
By default Let the agent work without asking permission (Settings → Agent) is on, which launches Claude Code with --dangerously-skip-permissions. The agent then runs autonomously — ideal for parallel, hands-off sessions.
Inserting a saved prompt
Insert prompt in the footer of the Agent tab puts a prompt template into the terminal, with its fields filled in. It appears only while the session is running and only once you have saved at least one — a stopped session shows nothing rather than a greyed-out button, because inserting a prompt never starts an agent.
As everywhere else, the text is typed in and left there. You read it and press return yourself.
Related
- The terminal — the bottom panel's plain scratch shells, separate from the wrapped agent
- Keyboard shortcuts — the full, customizable shortcut list
- Settings — every Agent-tab setting and its default