Lightcone Browse
Delegate browser tasks to a cloud computer powered by Lightcone. Northstar sees the screen, decides what to click, type, or scroll — and acts. You describe what you want done, Northstar does it.
When to use Lightcone
- No local browser available (headless, Docker, server deployments)
- Need parallel sessions (multiple sites at once)
- Vision-based automation (Northstar reads the screen — no selectors, no scripts to maintain)
- Desktop or browser environments
Tool: lightcone_browse
Parameters
| Parameter | Required | Description |
|---|---|---|
instruction | Yes | Plain language task for Northstar |
url | No | Starting URL to navigate to first |
maxSteps | No | Max steps before stopping (default: 50) |
Example instructions
Price checking:
instruction: "Find the current price of a MacBook Air M4 on Amazon"
url: "https://www.amazon.com"
Data extraction:
instruction: "Go to the pricing page and extract all plan names, prices, and feature lists"
url: "https://example.com/pricing"
Form filling:
instruction: "Fill out the contact form with name 'Jane Doe', email 'jane@example.com', and message 'Hello'"
url: "https://example.com/contact"
Tips for good instructions
- Be specific about what "done" looks like: "find the price" not "look around"
- Name the exact elements: "click the Sign In button" not "log in somehow"
- For multi-step tasks, describe the sequence: "First search for X, then sort by price, then get the top 3 results"
- Include what to extract: "tell me the title, price, and rating"
How it works
- Lightcone creates a cloud computer with a browser
- Northstar sees the screen via screenshots
- It decides what to click, type, or scroll — step by step
- When done, it returns the page content and a screenshot
- The computer is automatically shut down
For step-by-step manual control, see the lightcone-session skill.