Works with the AI tools you already use

    Claude CodeClaude CodeCursorCursorCodex CLICodex CLIGitHub CopilotGitHub CopilotGemini CLIGemini CLI+20 more

    Nex Page Watch

    6

    Deploy a production-ready Manifest V3 Chrome extension for visual webpage monitoring and change alerts.

    Free

    3 installsSecurity scanned
    nex-page-watch

    nex-page-watch

    Example session with this skill installed

    I need a Chrome extension that alerts me when the price changes on a specific website. Can you provide the source for a page monitor?

    • Read your context and instructions
    • Compiled the nex-page-watch

    I've generated the Nex Page Watch extension in /assets/extension/.

    Key components

    • manifest.json: Manifest V3 config
    • background.js: Alarm-based scheduler
    • diff.js: Visual diffing engine

    To install: Open chrome://extensions, enable Developer Mode, and 'Load unpacked' the folder.

    Connects securely to your tools. The creator never sees your data.

    About this skill

    What it does

    Nex Page Watch is a production-ready Chrome Extension (Manifest V3) that monitors web pages for content changes. It provides a complete, "no-build" codebase using vanilla JS, HTML, and CSS. When a monitored page changes, users receive a browser notification and a detailed visual diff highlighting additions, removals, and word-level modifications.

    Why use this skill

    Unlike basic scaffolding prompts, this skill delivers a fully functional, shipped product. It bypasses the complexity of modern build chains, offering a "Load Unpacked" workflow that is perfect for rapid prototyping or immediate deployment. It solves the architectural challenge of performing heavy diffing operations in an extension by utilizing offscreen documents, ensuring the browser remain responsive.

    Supported architecture & features

    • Manifest V3: Built on the latest Chrome extension standards.
    • Offscreen API: Off-thread processing for performance-intensive diffing.
    • Alarms & Storage: Reliable background scheduling and local data persistence.
    • Vanilla Stack: Zero dependencies—no npm, no Webpack, no Vite.

    The Output

    You receive the complete assets/extension/ source directory containing the manifest, background scripts, content scripts, and UI files. The agent also provides a comprehensive guide on the developer loop, customization, and Web Store packaging steps.

    Built by Nex AI. More skills and info at nex-ai.be and slopsome.com.

    How to install

    Works the same in every agent - Claude, Cursor, Codex, Copilot and 20+ more.

    ~30 seconds
    1. 1

      Download the ZIP

      Free skills download straight away. Paid skills unlock right after purchase.

    2. 2

      Unzip into your skills folder

      Every agent reads skills from one folder on your machine. Drop the unzipped folder in there.

    3. 3

      Ask your agent to use it

      Restart the agent if it was already running. It picks the skill up automatically - no config needed.

    Skills folder by agent

    Click the path to copy it. Create the folder if it does not exist yet.

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    3 installs

    Downloaded by developers to date

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    Trust & safety

    Security scanned

    Verified clean 1 month ago

    • Free to download with an account

    Listed3 months ago
    Updated1 month ago

    What's inside

    Frequently Asked Questions