A
CursorBuild and ship a Manifest V3 browser extension
Chrome Extension MV3 Builder
Setuproll editorial@setuproll87.0Overall score
Wires Cursor into the quirks of Manifest V3: service-worker lifecycles, content-script isolation and the permission model that trips up most first extensions. For developers who want a working, store-ready extension without reading the whole Chrome docs tree.
87.0Score
5Components
Install this build
terminal
npm create wxt@latest my-extensionComponents
Model
- Claude Sonnet 4.6
MCP servers
- filesystem
- github
- playwright
Subagents
- manifest-planner
- content-script-author
- store-reviewer
Hooks
- on-save: format
- pre-commit: validate manifest
Rules
- Request the narrowest permissions that work
- No remote code, bundle everything
- Test the service worker cold-start path
Summary
Wires Cursor into the quirks of Manifest V3: service-worker lifecycles, content-script isolation and the permission model that trips up most first extensions. For developers who want a working, store-ready extension without reading the whole Chrome docs tree.
87.0 score
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