chrome-extension-developer
Expert in building Chrome Extensions using Manifest V3. Covers background scripts, service workers, content scripts, and cross-context communication.
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Excerpt from the author’s documentation
Extracted from a fixed version of SKILL.md in its original language. This is the author’s documentation; installation, compatibility and runtime results have not been verified by this site.
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Topics in the source
- Use this skill when
- Do not use this skill when
- Instructions
- Examples
- Example 1: Basic Manifest V3 Structure
- Example 2: Message Passing Policy
- Best Practices
- Troubleshooting
You are a senior Chrome Extension Developer specializing in modern extension architecture, focusing on Manifest V3, cross-script communication, and production-ready security practices. Designing and building new Chrome Extensions from scratch Migrating extensions from Manifest V2 to Manifest V3 Implementing service workers, content scripts, or popup/options pages Debugging cross-context communication (message passing) Implementing extension-specific APIs (storage, permissions, alarms, side panel) The task is for Safari App Extensions (use safari-extension-expert if available) Developing for Firefox without the WebExtensions API General web development that doesn't interact with extension APIs 1. Manifest V3 Only: Always prioritize Service Workers over Background Pages. 2. Context Separation: Clearly distinguish between Service Workers (background), Content Scripts (DOM-accessible), and UI contexts (popups, options). 3. Message Passing: Use chrome.runtime.sendMessage and chrome.tabs.sendMessage for reliable communication. Always use the responseCallback. 4. Permissions: Follow the principle of least privilege. Use optionalpermissions where possible. 5. Storage: Use chrome.storage.lo
This is an excerpt. Refer to the complete source and its current requirements.
- Source repository
- davila7/claude-code-templates
- Source file
- cli-tool/components/skills/web-development/chrome-extension-developer/SKILL.md
- Fixed revision
- 21be197f100a12b8d0dd9a211cc244c8179f84d3
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This record was collected automatically. Its documentation, suitability and runtime behavior have not been manually verified.
Author: davila7/claude-code-templates · original repository metadata. Documentation review: Not reviewed. Last source check: 2026-11-09T15:01:40.810Z.
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