What We Set Out to Build In early 2026, we started wiring Model Context Protocol extensions into our automation pipelines. The premise was straightforward: Claude, by default, has no memory of the web, no access to your filesystem, and no way to trigger external systems. MCP changes that. It is a protocol that lets you attach capability modules to a Claude session, turning a chat interface into something closer to an orchestration layer with live data access. According to McKinsey's 2024 State of AI report, 72% of organizations now use AI in at least one business function, up from 50% in previous years ( source ). Most of that adoption is still shallow: a chat window here, a summarization step there. What MCP offers is a path from shallow usage to genuine integration, and we wanted to understand exactly where that path holds and where it breaks. We tested three categories of extensions: file and filesystem tools, live web browsing and scraping modules, and database connectors.…