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 |
|---|
| INLINECODE1 | Yes | Plain language task for Northstar |
| INLINECODE2 |
No | Starting URL to navigate to first |
|
maxSteps | No | Max steps before stopping (default: 50) |
Example instructions
Price checking:
CODEBLOCK0
Data extraction:
CODEBLOCK1
Form filling:
CODEBLOCK2
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
- 1. 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.
Lightcone 浏览
将浏览器任务委托给由 Lightcone 驱动的云端计算机。Northstar 查看屏幕，决定点击、输入或滚动的内容，然后执行操作。您描述想要完成的任务，Northstar 负责执行。
何时使用 Lightcone
- - 没有可用的本地浏览器（无头模式、Docker、服务器部署）
- 需要并行会话（同时处理多个网站）
- 基于视觉的自动化（Northstar 读取屏幕——无需选择器，无需维护脚本）
- 桌面或浏览器环境
工具：lightcone_browse
参数
| 参数 | 必填 | 描述 |
|---|
| instruction | 是 | 为 Northstar 提供的自然语言任务 |
| url |
否 | 首先导航到的起始 URL |
| maxSteps | 否 | 停止前的最大步骤数（默认：50） |
示例指令
价格查询：
instruction: 在亚马逊上查找 MacBook Air M4 的当前价格
url: https://www.amazon.com
数据提取：
instruction: 前往定价页面，提取所有套餐名称、价格和功能列表
url: https://example.com/pricing
表单填写：
instruction: 填写联系表单，姓名为张三，邮箱为zhangsan@example.com，留言为你好
url: https://example.com/contact
编写良好指令的技巧
- - 明确说明完成的标准：查找价格而非随便看看
- 指明具体元素：点击登录按钮而非以某种方式登录
- 对于多步骤任务，描述操作顺序：先搜索 X，然后按价格排序，最后获取前 3 个结果
- 包含需要提取的内容：告诉我标题、价格和评分
工作原理
- 1. Lightcone 创建一个带有浏览器的云端计算机
- Northstar 通过截图查看屏幕
- 它逐步决定点击、输入或滚动的内容
- 完成后，返回页面内容和截图
- 计算机会自动关闭
如需逐步手动控制，请参阅 lightcone-session 技能。
