A simple but powerful extension for the Gemini CLI that allows you to capture a screenshot and have the AI analyze it immediately.

• Instant Capture: Uses your system's native screenshot tool.
• AI Analysis: Automatically sends the image to Gemini for description or analysis.
• Cross-Platform: Works on macOS and major Linux environments.

Ensure you have one of the following screenshot tools installed on your system:

• macOS: screencapture (Pre-installed)
• Linux: scrot, gnome-screenshot, or imagemagick (import)

1. Ensure you have the Gemini CLI installed.
2. Run the following command:

gemini extensions install https://github.com/timsonner/gemini-screenshot-extension

Note: If you are already inside a Gemini CLI session, you may need to exit and restart it for the /screenshot command to appear.

From within Gemini CLI:

/screenshot

Or directly from your terminal:

gemini screenshot

This extension is particularly powerful for front-end developers and creatives:

• UI Implementation: Take a screenshot of a design or a live site and ask: "How would you render this web element using Tailwind CSS?"
• Asset Creation: Capture a UI icon and ask: "Can you recreate this icon as a clean, optimized SVG?"
• Bug Reporting: Snap a visual glitch and ask: "Identify the likely CSS layout issue causing this alignment problem."
• Creative Inspiration: Capture any visual element and use follow-up prompts to brainstorm variations or alternative color palettes.

1. The extension triggers your system's screenshot selection tool (e.g., crosshairs appear).
2. It saves the captured image to a temporary location.
3. It generates a prompt for the Gemini agent including the image path (using the @ syntax).
4. Gemini analyzes the image within your current session.

To uninstall the extension, run:

gemini extensions remove gemini-screenshot-extension

Alternatively, you can manually delete the extension directory:

rm -rf ~/.gemini/extensions/gemini-screenshot-extension