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Install

npm install -g @magnitudedev/cli

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Get started

1

Launch Magnitude

Navigate to your project directory and run:
magnitude
2

Complete the setup wizard

On first launch, Magnitude walks you through a setup wizard that:
  • Connects a provider — authenticate with Anthropic, OpenAI, or another supported provider via API key or OAuth
  • Configures models — automatically selects recommended models for your provider
  • Sets up the browser agent — installs Chromium if needed so the browser agent can verify UI changes
You can revisit these settings anytime with /settings.
3

Send your first message

Type a message and press Enter. Magnitude will explore your codebase using specialized agents, then respond.Try something like:
What does this project do? Give me a summary of the architecture.
4

Make changes

When you’re ready to make changes, just ask. Magnitude will talk through the approach with you, confirm direction, then implement autonomously.
Add input validation to the signup form
Press Enter to continue when you’re ready, or type feedback to refine the plan. You can also reopen a prior session anytime with:
magnitude --resume

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Next steps

Providers & Models

Configure LLM providers and models

Interface

Learn how to read and interact with the chat interface