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Chrome Extension Starter That Does One Useful Thing

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The prompt

Act as a browser-extension developer. Build a small Chrome extension for me. What it should do: [e.g. highlight words I choose on any page, save the current tab's title and URL to a list, show a word count of selected text] Where it works: [all sites / only SITE] UI: [a popup / a right-click menu item / runs automatically] Data to store: [e.g. a list of saved links, settings, nothing] Give me: 1. A complete Manifest V3 extension: manifest.json, and only the files needed (popup HTML/JS, content script, service worker). 2. The smallest set of permissions it needs, with a one-line reason for each. 3. Storage with chrome.storage if it saves data. 4. Step-by-step instructions to load it unpacked in Chrome and test it. 5. A list of edge cases (pages where content scripts can't run, very long pages) and how the code handles them. Rules: no remote code, no tracking, no external libraries unless necessary; plain JavaScript; explain anything that would need review before publishing on the Chrome Web Store [VERIFY current policies].

Why this prompt

• Hand-picked, editorially reviewed prompt
• Written for Claude, ChatGPT, Gemini

Source

Created by BestPromptFinder — editorial prompt, not user-generated. See our content & source policy.

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