Browser-based agent reverse-engineers web app APIs into self-updating AI tools

A developer introduces a browser-based agent that runs inside authenticated web apps, observes how the app calls its own APIs, and automatically converts those API calls into reusable agent tools. The system functions like an auto-generated MCP (Model Context Protocol) server that self-updates as the host application changes, enabling deep AI integration with any product beyond simple chat and RAG (Retrieval-Augmented Generation). The post includes demo links showing the agent working with Jira, Spotify, and Hacker News.