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Sending Messages

Type your message in the input field and press Enter or click Send. You can:
  • Describe new features to add
  • Ask for UI changes
  • Request bug fixes
  • Ask questions about your code

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Example Prompts

Create a weather app with a clean, minimal design

Add a settings screen with dark mode toggle

The button isn't responding to taps, can you fix it?

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Checkpoints

Paperline automatically creates checkpoints as you build. Checkpoints let you:
  • Undo changes that didn’t work out
  • Redo changes you accidentally undid
  • Compare different versions of your app

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Using Checkpoints

  1. Look for the checkpoint indicator in the chat
  2. Click Restore to go back to that state
  3. All file changes will be reverted

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Image Attachments

You can attach images to your messages to:
  • Share UI mockups or designs
  • Show screenshots of bugs
  • Reference other apps for inspiration

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Attaching Images

  1. Click the photo icon in the chat input
  2. Select images from your Mac (up to 5 at a time)
  3. Or paste an image directly from your clipboard
  4. Add a description of what you want

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Message Editing

Made a typo or want to rephrase? You can edit your messages:
  1. Hover over your message
  2. Click the Edit button
  3. Modify your message
  4. Press Enter to resend
The AI will respond to your updated message.

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Chat Tabs

Paperline supports multiple chat conversations per project:
  • Click New Chat in the sidebar to start a fresh conversation
  • Switch between tabs to access different conversations
  • Each tab maintains its own context and history
  • Close tabs with ⌘ W (keeps at least one tab open)

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Streaming Responses

Paperline streams AI responses in real-time. You’ll see:
  • Text appearing as it’s generated
  • Code blocks being written
  • File changes being applied
You can Stop generation at any time by clicking the stop button.

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Context Awareness

Paperline understands your entire project:
  • All Swift and SwiftUI files
  • Project structure and dependencies
  • Previous conversation history
This means you can reference things naturally: 
Make the button we added earlier blue instead of green

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Keyboard Shortcuts

ShortcutAction
⌘ NNew Project
⌘ OOpen Project
⌘ WClose Tab
⌘ ⇧ WClose Project
⌘ SToggle Sidebar
⌘ ⇧ RReveal in Finder
TabFocus Chat Input

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Tips for Better Results

Instead of “make it look better”, try “add rounded corners and a subtle shadow to the card”.
Break complex features into smaller requests for better results.
If referencing external designs, attach an image or describe it in detail.
Don’t be afraid to experiment. You can always go back.