Claude Desktop + MCP

The combination of Claude Desktop and Model Context Protocol (MCP) marks a milestone in AI agents becoming local workspace executors. MCP, introduced by Anthropic, is an open standard that unifies how LLMs communicate with data sources and tools, eliminating custom API integrations. Under MCP, developers build lightweight MCP Servers running locally. These servers expose file directories, databases (like Postgres/SQLite), GitHub APIs, or web browsers as standard Tools. Claude Desktop acts as the MCP Client, communicating via JSON-RPC 2.0 to dynamically invoke these resources based on user intent. This elevates Claude Desktop into a powerful engineering terminal. With user approval, Claude can read local source code, rewrite files, and run terminal build commands. It can connect to local databases, writing and executing SQL queries directly to generate structural data. The MCP ecosystem is open-source. Global developers have shared pre-built MCP servers connecting Slack, Notion, Postgres, and Puppeteer. This architecture bridges static LLM weights with dynamic local operating systems, delivering secured workflow operations.