Software designed so an LLM can add new features from plain-language requests.
It is like a LEGO desk with spare bricks. You ask for a calendar button. AI snaps one on.
Office and coding tools can add features when you ask. Safe rules and tool links must come first.
LLM
An LLM understands requests and adds or calls new abilities.
API
APIs give new features a safe way to use outside services.
Agent
An Agent can plan and complete several steps inside this software.
MCP
MCP helps the model find and use tools in one shared way.