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Sidey is a lightweight, app-aware AI assistant designed specifically for macOS. It opens quickly from the menu bar as a compact popover, handles small tasks in the app you are using, and gets out of your way when you are done.

Or install via Homebrew:

brew tap chentao1006/tap
brew install --cask sidey

• Menu Bar Popover: Open Sidey from the menu bar for quick questions, rewrites, summaries, or selected-text tasks without switching into a full chat app.
• Window Companion: A lightweight, dynamic icon that automatically docks to the edge of your active window. It follows your window as you move or resize it, allowing you to summon the AI assistant with a single click without leaving your workflow.
• Selection Assistant: A premium, context-aware floating button that appears elegantly near your selected text. It allows you to instantly process chosen content with your active AI assistant without any extra clicks or keyboard shortcuts.
• Context Awareness: Automatically detects the frontmost application and suggests relevant prompts. Retrieves active window details including application name and bundle identifier.
• Deep Context Capture: Supports a multi-tier text retrieval system:
  • Accessibility Search: Directly queries the focused window for selected text.
  • Specialized Plugins: Deep integration with Safari and Finder via AppleScript.
• Context Continuity: Preserves your screen context and attachments when switching between different assistant prompts or applications.
• App-aware Assistants: Create and manage different AI personas or tasks for specific apps (e.g., "Code Review" for Xcode, "Summarize" for Safari).
• Auto Create Assistants: AI analyzes your active application and automatically designs professional personas with one click.
• Public AI Service: Use Sidey instantly with a built-in public AI service — no API key required.
• Global Hotkey: Summon your assistant instantly from anywhere with a customizable keyboard shortcut.
• Markdown Support: Beautifully rendered AI responses with full Markdown support.
• iCloud Sync: Keep your assistants and settings seamlessly synced across your devices via your Apple ID.
• Optimized UI: Refined input editor height and "View Full Text" attachment preview for a more efficient workflow.
• App Switcher: Quickly switch back to your recently used applications directly from the assistant.

Feature	Screenshot
Menu Bar Popover
Window Companion
Context Awareness
Assistant Window
Auto Assistant

• macOS 13.0 or later.
• An OpenAI-compatible API Key (optional — a built-in public service is available for immediate use).

1. Download the latest release or build from source using the provided build_app.sh script.
2. Move Sidey.app to your /Applications folder.
3. Launch the app and go to Settings > API to enter your API Key and Base URL.

git clone https://github.com/chentao1006/sidey.git
cd sidey
./build_app.sh

This project is licensed under the MIT License - see the LICENSE file for details.

Made with ❤️ for macOS power users.