find-selector

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Find the best CSS selector for a specific element on a webpage

sun-flat-yamada By sun-flat-yamada schedule Updated 1/23/2026

name: Find Selector description: Find the best CSS selector for a specific element on a webpage

Find Selector Skill

This skill helps identifying the robust CSS selector for a text or element on a webpage, which is required for the monitoring configuration.

Instructions

  1. Understand the Requirement: Identify which element the user wants to monitor (e.g., "the price of the item", "the stock status text").
  2. Open Browser: Use open_browser to navigate to the target URL.
  3. Inspect Element: Use the browser_subagent to find the unique selector.
    • Prompt the subagent: "Find the unique CSS selector for [description of element]. Prioritize IDs or specific class combinations that look stable. Return ONLY the selector."
  4. Verify:
    • (Optional) Use run_entry_point or screenshot.js locally with the found selector to verify it captures the correct data.
  5. Report: Return the found selector to the user or use it in the add_target workflow.
Install via CLI
npx skills add https://github.com/sun-flat-yamada/automate-mon-webpage --skill find-selector
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