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    nex-ollama-local-fallback

    by Nex AI

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

    Updated Jun 2026
    Security scanned

    $9

    · or 45 credits

    30-day refund guarantee

    Secure checkout via Stripe

    Included in download

    • Deploy a fully functional Manifest V3 extension with no build steps required.
    • Implement visual diffing logic using offscreen documents for performance.
    • terminal automation included
    • Instant install

    Sample input

    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?

    Sample output

    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.

    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.

    Use Cases

    • Deploy a fully functional Manifest V3 extension with no build steps required.
    • Implement visual diffing logic using offscreen documents for performance.
    • Fork a proven 'action-on-click' extension architecture for custom tools.
    • Schedule background webpage checks using the Chrome Alarms API.

    Reviews

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    Security Scanned

    Passed automated security review

    Permissions

    Terminal / Shell

    Allowed Hosts

    nex-ai.be

    File Scopes

    nex-ollama-local-fallback/**

    Tags

    chrome-extension
    manifest-v3
    vanilla-js
    web-monitoring
    devtools

    Creator

    Nex AI

    Founder of Nex AI. I build production-grade Claude Skills from systems that actually run: multi-tenant SaaS, Telegram agents, Raspberry Pi infrastructure, 3D multiplayer rooms. Every skill ships battle-tested patterns, not theory. 33+ open source skills published, commercial catalog growing.

    Frequently Asked Questions

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