chrome-extension

# Chrome Extension Development (Manifest V3) This skill covers everything needed to build, debug, and publish Chrome extensions with MV3. It is organized as a routing document: read this file first to understand the architecture and decision points, then load the relevant reference file for implementation details. ## Reference files Read only the reference files relevant to the current task. Each file is self-contained. | File | When to read | | --- | --- | | `references/manifest-v3.md` | Setting up or modifying manifest.json, configuring icons, versioning | | `references/service-worker.md` | Background logic, lifecycle, state persistence, alarms, events | | `references/content-scripts.md` | Injecting code into pages, isolated/main world, dynamic injection, SPA handling, orphaning | | `references/messaging-rpc.md` | Communication between any contexts, typed protocols, RPC layer, async handler patterns | | `references/ui-surfaces.md` | Popup, options page, side panel, context menus, commands, notifications, omnibox, devtools panel | | `references/storage.md` | chrome.storage (local/sync/session), quotas, reactive patterns, framework hooks | | `references/network-csp.md` | HTTP requests from content scripts, CSP bypass relay, declarativeNetRequest, offscreen docs, CORS | | `references/permissions.md` | Required/optional permissions, host permissions, activeTab, runtime request flow | | `references/web-accessible-resources.md` | Exposing extension files to web pages, securit...