Electron App Builder
CautionScaffold secure Electron desktop applications with main/renderer process separation, IPC communication, auto-updater, and native OS integrations.
$ Copy the SKILL.md file to .claude/skills/electron-app.md About This Skill
Electron App Builder generates secure Electron applications following the modern security model with contextIsolation enabled and nodeIntegration disabled.
Security Architecture
The skill enforces Electron's recommended security practices: Main process handles all privileged operations (filesystem, native APIs, network), Preload scripts expose a minimal, typed API via `contextBridge.exposeInMainWorld`, and Renderer accesses only the exposed API, never Node.js directly.
IPC Communication
Generated IPC handlers use `ipcMain.handle()` (async request/response) and `ipcMain.on()` (fire-and-forget). Each handler validates input types before processing. The preload bridge provides typed wrappers that TypeScript can check end-to-end.
Native Integrations
Built-in helpers for: system tray icons with context menus, native file dialogs, OS notification sending, protocol handler registration, and clipboard access — all properly gated behind IPC.
Build & Distribution
Configures electron-builder with code signing for macOS (Developer ID), Windows (EV certificate), and Linux (AppImage/deb/rpm). GitHub Actions workflow for CI/CD builds and S3-based auto-update server.
Auto-Update
electron-updater integration with differential updates, staged rollout percentages, and update notification UI in the renderer.
Use Cases
- Building cross-platform desktop apps with web technologies
- Creating secure IPC bridges between main and renderer processes
- Setting up electron-builder for code-signed installers on Mac/Win/Linux
- Implementing auto-update via electron-updater with staged rollouts
Pros & Cons
Pros
- +Enforces modern Electron security model from project start
- +Typed IPC bridge catches API mismatches at compile time
- +electron-builder handles code signing and multi-platform builds
- +Auto-update with staged rollout reduces risky big-bang releases
Cons
- -Large bundle size (Chromium + Node) compared to native apps
- -Code signing certificates for Mac and Windows require paid developer accounts
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FAQ
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Next Step
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