The Architecture of Model Context Protocol
Model Context Protocol (MCP) connects LLMs to external data sources, developer tools, and operational environments. Unlike hard-coded function calling, MCP standardizes how tools, resources, and prompt templates are published by servers and discovered by AI clients.
Capability Boundaries and Dangerous Combinations
Individual MCP tools may appear safe in isolation, but when combined within an active session, they can create unexpected risks. For example, pairing local filesystem reading tools with outbound network tools introduces the possibility that untrusted prompt injections could exfiltrate local files.