Show HN: peerd – AI agent harness that runs entirely in your browser (github.com)

peerd has launched as the first AI agent harness that runs entirely within your web browser, specifically designed as a Chrome and Firefox extension. It operates a complete agent loop directly in the browser, leveraging existing tabs and sessions while enabling features such as reading and interacting with web pages, executing sandboxed code, and facilitating peer-to-peer communication through a unique WebRTC network. Notably, peerd emphasizes user privacy by employing a "bring your own key" (BYOK) model, ensuring that no backend or cloud services are used in the data handling process. This development is significant for the AI/ML community as it offers a novel approach to building and running AI applications without compromising security or privacy. By capitalizing on decades of advancements in browser architecture, peerd utilizes robust security measures—such as V8 isolates for sandboxing and WebCrypto for key management—while ensuring that the browser itself verifies all actions before completion. This effectively safeguards sensitive user data and promotes a secure environment for executing code. As a beta release, peerd is still evolving, prompting developers and early testers to experiment with its capabilities and contribute to its future iterations.