# Scenario: Chat message produces real file diffs in the changes view

## Steps
1. Type "build the project" in the chat input
2. Press Enter to submit
3. Verify there is a response in the chat
4. Verify the changes view shows modified files
5. Click on "index.ts" in the changes list
6. Verify a diff editor opens with the modified content
7. Press Escape to close the diff editor