Prompt Composer
Prompt Composer is a rich-text composer that floats over any terminal. Press ⇧P on a focused terminal, or toggle the composer button in its toolbar, to open it. While the mode is on, the composer follows your focus from terminal to terminal.

Mentions
Type @ to reference anything connected to the terminal:
- Terminals — address a connected agent by name.
- Notes — point the agent at a sticky note. It reads the live note, not a stale snapshot.
- Portals — point the agent at a browser portal it can drive.
- @Maestro — on Maestro-enabled terminals, an explicit "orchestrate this". The manager recruits and coordinates visible agents on your canvas.
- Actions — @New Note and @New Portal ask the agent to create things on the canvas.
Images and files
Paste a screenshot, drop a file, or click the paperclip:
- Images appear inline as tilted previews. On CLIs that support it (Claude Code, Codex, Gemini), images arrive natively as pixels, exactly where you placed them.
- Other files become chips with their Finder icon and deliver as a path.
- On SSH terminals, image bytes stream to the remote host so the path resolves where the agent runs.
Drafts
Each terminal keeps its own draft. Escape, switch floors or workspaces, and your text and pills are waiting when you come back. Only sending clears it.
With the composer empty, arrows, Return, and Tab pass through to the terminal so you can answer approval dialogs without dismissing it.
Keyboard reference
- ⌘⇧P — Toggle Prompt Composer
- @ — Mention terminals, notes, portals, Maestro
- Return — Send
- ⇧Return — New line
- / — Jump to CLI slash commands (empty composer)