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SafePaste is a client-side security layer designed to prevent Data Exfiltration to LLMs. This wiki contains technical details on our detection engine, privacy architecture, and contribution guidelines.

How it Works: The "Privacy Firewall"

SafePaste operates on a "Zero-Trust" model regarding the clipboard. Unlike standard extensions that monitor every keystroke, SafePaste only activates upon a specific user intent (Ctrl+Alt+V).

The Pipeline

1. Trigger: User hits the shortcut.
2. Capture: The extension reads the system clipboard via clipboardRead.
3. Analysis: The piiDetector.ts engine runs 25+ regex suites locally.
4. Intervention: The "Ghost Overlay" renders a React-based UI over the AI's text area.
5. Injection: Upon selection, the masked or filtered text is programmatically injected into the DOM.

Read more about our Detection Logic →