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Grok Bot+18 agentsNex Tab Cost Ext
A production-ready Manifest V3 Chrome extension to monitor tab memory, manage resources, and gamify browser hygiene.
Free
nex-tab-cost-ext
Example session with this skill installed
I need a browser extension that shows me how much RAM my tabs are using and lets me close the heavy ones. Use a vanilla JS approach.
- Read your context and instructions
- Compiled the nex-tab-cost-ext
I've generated the Nex Tab Cost extension in assets/extension/.
Key features
- Badge shows total RAM (Green <2GB, Red >4GB)
- Popup dashboard sorts tabs by memory impact
- One-click 'Close Idle' for tabs older than 60 mins
Load it via Chrome > Extensions > Load Unpacked.
Connects securely to your tools. The creator never sees your data.
About this skill
What it does
Nex Tab Cost is a production-ready Chrome Extension (Manifest V3) that calculates and displays the real-time resource cost of open browser tabs. It uses a sophisticated heuristic engine to estimate memory usage based on domain weight, activity status, and media playback. The extension provides a toolbar badge with color-coded severity levels, a dashboard for managing heavy tabs, and gamified achievements to encourage lean browsing habits.
Why use this skill
Unlike basic scaffolding tools, this skill delivers a fully functional, previously shipped product. It follows a "no-build" philosophy—using vanilla JavaScript, HTML, and CSS—eliminating the need for complex toolchains, Webpack, or NPM dependencies. It's the perfect solution for developers who need a hardened MV3 starting point or an immediate utility for tab management.
Output & Features
- Complete source code including Manifest V3 service workers and popup dashboards.
- Heuristic weighting database (heavysites.json) for accurate memory estimation.
- Gamification engine with five unlockable achievement badges.
- CSV export functionality for historical resource usage tracking.
- Step-by-step guidance for Chrome Web Store packaging and deployment.
Built by Nex AI. More skills and info at nex-ai.be and slopsome.com.
How to use
Skills on Agensi run inside your AI agent. Copy the prompt, paste it into your agent, and it connects to Agensi and installs this skill for you. If a payment is needed, your agent shows it to you first.
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