An AI coding agent is software that uses a large language model to perform development tasks end to end — understanding a request, exploring the codebase, making edits, running commands, and iterating. Popular terminal-native agents include Claude Code, Codex CLI, Gemini CLI, and Aider.
Agents differ from inline assistants in autonomy: they take multi-step actions rather than only completing the current line. Running them effectively benefits from a terminal designed to host, observe, and orchestrate agents.
Learn more
Related guides on the Agents UI blog and related terms in this glossary.