Quick definition · 2 min AI term

Coding agent

A coding agent is an AI tool that does not just suggest code but reads your files, makes changes, runs commands, and fixes its own errors in a loop.

Think of it like

Less like autocomplete, more like a junior developer at the keyboard: give it a task and it works through the steps, checking as it goes.

Example

Tools like Claude Code, Cursor’s agent, and Aider can edit several files, run the tests, read the failure, and try again until it passes.

Why it matters

It is the shift from “AI that talks” to “AI that acts” in your codebase. Powerful, but you still have to read and test what it does.

Where you’ll see it
Claude CodeCursorAiderWindsurf
Go deeper How agents act: tool calling → The full explainer. This quick definition is just the on-ramp. Next step How to write code with AI → How to direct a coding agent well, and when to take over. ← All terms in the dictionary