Quick Start

Your First Chat

After signing in, you'll see the chat interface. Type a message and press Enter (or click Send).

Try these:

What files are in my project?

Explain what index.ts does

Fix the error in auth.ts

Switching Modes

Use the Chat / Code toggle at the top of the screen:

• Chat — Cloud-based, no file access. Good for questions and brainstorming.
• Code — Runs on your machine. Full file system access. Requires desktop app.

Working with Files

In Code mode, Agent Nine can read and modify your files:

Read the file app.ts

Add error handling to the login function in auth.ts

Find all files that import from the utils folder

Running Commands

Agent Nine can execute shell commands:

Run the tests

Check if the project compiles

Install express as a dependency

Destructive commands (like rm -rf or git force push) are blocked automatically. You'll be asked for permission before any risky operation.

Using Plan Mode

For complex tasks, enter plan mode first:

I need to refactor the auth system to use JWT. Enter plan mode.

In plan mode:

1. Agent Nine explores your code (read-only)
2. Writes a detailed implementation plan
3. Asks for your approval
4. Then implements step by step

Slash Commands

Type / to see available commands:

Command	Description
/compact	Compress conversation history
/clear	Clear current chat
/undo	Revert last file changes
/plan	Enter plan mode
/help	Show available commands

Keyboard Shortcuts

Shortcut	Action
Enter	Send message
Shift+Enter	New line
Ctrl+V	Paste image/file

Choosing a Model

Click the model name at the bottom to switch:

Model	Best For
Sonnet 4.6	Fast, smart — good default
Opus 4.6	Most capable — complex tasks
Haiku 4.5	Fastest — quick questions

Toggle Extended Thinking for complex reasoning tasks (available with Sonnet and Opus).

Next Steps

• Chat Modes →
• File Operations →
• Integrations →