GLOSSARY
AI Agent
An AI system that plans and executes multi-step tasks autonomously — browsing, writing code, using tools — instead of only answering single questions.
An AI agent wraps a language model in a loop: it receives a goal, breaks it into steps, uses tools (a browser, a code interpreter, files), checks its own progress and keeps working until the task is done. Chat assistants answer; agents act.
The category is young and uneven — Devin completing tickets and Manus assembling reports impress in demos but vary in reliability. Still, the direction is clear: coding agents like GitHub Copilot's and Cursor's are already production tools, and 'delegate, then review the diff' is becoming a normal way to work.