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What is an AI coding agent?
An AI coding agent is a tool that can read your code, write changes, run commands and fix errors with little help.
- Category Agents & tools
- Also called coding agent, AI coding assistant, coding assistant
- Updated 20 Oct 2026
AI coding agent, explained simply
An AI coding agent is an AI that works on software for you. You describe what you want, and it edits files and runs tests.
It matters because you don't have to be an expert to build things. It also saves time for people who do code.
For example, you could say, "Add a dark mode button to my site." The agent finds the files and makes the change. Then it checks that it works.
It can still make mistakes. Read what it changed, and keep a backup of your work.
On ITG Now, our daily AI news covers new coding agents, and our free tool guides show how to install and try them.
Related terms
Claude CodeCodexGitHub CopilotCursorVibe codingAI agent
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Questions people ask about AI coding agent
Is an AI coding agent free?
Some are free or open source. Others need a paid plan or an API key.
Coding agent vs coding assistant: what is the difference?
An assistant suggests code as you type. An agent can take a whole task and carry out many steps by itself.
Do I need to know how to code to use one?
Not always, but it helps. You should be able to check that the result does what you asked.