The old "Universal Input" experience (with the "A" button toggle) has been replaced by a new Agent Modality system. The good news is you can recreate a very similar workflow.
What changed
The previous Universal Input — where you could click an "A" icon to switch between terminal and agent mode inline — has been replaced with a two-mode system: terminal mode and agent conversation view. The ⌘I shortcut behavior also changed with this update, which has frustrated a number of users. [Agent Modality docs]
How to get the old experience back
You can recreate the Universal Input workflow with two settings changes:
Step 1 — Set new tabs to open in agent view by default
- Go to Settings > Features > General
- Change Default mode for new sessions to Agent
Step 2 — Enable auto-detection in agent view
- Go to Settings > AI > Input
- Toggle on Autodetect terminal commands in agent input
With this setup, Warp will automatically detect whether you're typing a shell command or a natural language request and route it accordingly — similar to how Universal Input worked. [Agent Modality docs]
Other ways to jump to AI mid-session
Even without changing defaults, you still have options from terminal mode: