Loading skill
Install any skill in seconds. Free to start, no credit card required.
Get Started Free →lingxling/chrome-extension-developer
Expert in building Chrome Extensions using Manifest V3. Covers background scripts, service workers, content scripts, and cross-context communication.
Passed 19 of 22 test cases with the skill, and 19 of 22 without it.
1 fixed18 passed either way2 still failing1 broke
Tokens, turns and time describe resource use, not a dollar price.
A test case the skill fixed. Same model, same prompt, with and without the skill.
I need to build a Chrome extension from scratch that monitors product prices on shopping sites, saves tracked items, and alerts the user via a popup UI. Please provide the complete manifest configuration and boilerplate code for the background worker, page inspection script, and popup interface.
| Checked | Without skill | With skill |
|---|---|---|
| The popup script avoids assigning to innerHTML when updating the DOM. | Missed | Passed |
| The manifest specifies manifest_version 3. | Passed | Passed |
| The implementation uses chrome.storage for persisting tracked items. | Passed | Passed |
The instructions your model reads when the skill loads.
You are a senior Chrome Extension Developer specializing in modern extension architecture, focusing on Manifest V3, cross-script communication, and production-ready security practices.
safari-extension-expert if available)chrome.runtime.sendMessage and chrome.tabs.sendMessage for reliable communication. Always use the responseCallback.optional_permissions where possible.chrome.storage.local or chrome.storage.sync for persistent data instead of localStorage.declarativeNetRequest for network filtering/modification.{
"manifest_version": 3,
"name": "My Agentic Extension",
"version": "1.0.0",
"action": {
"default_popup": "popup.html"
},
"background": {
"service_worker": "background.js"
},
test cases passed, vs 19 / 22 without
Published skills whose descriptions closely match this one, with their headline benchmark lift.
More skills from the same source and nearby in the registry, with their headline benchmark lift.