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Learn · Coding agents

How does a coding agent actually work?

A coding agent wraps an AI model in a loop with access to tools: reading and writing files, running terminal commands, and running tests. It reads your request, inspects the relevant code, makes an edit, runs the code to see what happens, reads the result, and repeats until the task passes or it gets stuck.

The key ability is acting and then checking. Instead of guessing at code and handing it over, the agent runs it, sees the error, and corrects itself, much like a developer would. That feedback loop is what lets it handle multi-step work rather than one-shot suggestions.

It still works within limits you set: which files it can touch, which commands it can run, and when it needs your approval. Good setups keep the agent on a leash for anything risky, like deleting files or deploying.

Updated July 2026

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