AI Coding IDE vs. CLI: Two Ways to Work With an Agent

Cursor and Antigravity live inside a visual editor. Claude Code and Codex CLI live inside your terminal. Same underlying idea, very different feel.

Two different homes for the same idea

Both an AI coding IDE and an AI coding CLI let a model read your code, suggest changes, and sometimes make them directly. The difference is where you experience that: an IDE like Cursor or Google Antigravity is a full visual editor - file tree, tabs, a chat panel next to your code. A CLI like Claude Code or OpenAI's Codex CLI runs inside your terminal - no windows, no mouse, just text going back and forth.

What an IDE gives you

A visual multi-panel view of your whole project, inline suggestions as you type, and a chat or agent panel where you can hand off a whole task. You see diffs highlighted right in the editor, which makes reviewing changes to a specific file feel natural.

What a CLI gives you

A CLI runs anywhere a terminal runs: your laptop, a remote server over SSH, inside a CI pipeline. It's easy to script - pipe log output into it, chain it with other command-line tools, or trigger it automatically on a schedule. There's no window to open; you're already there once you're in a terminal.

When to use which

Editing and reviewing code closely, especially UI work where you want to see the result: an IDE fits better. Automating a task, working on a remote machine, or running an agent as part of a script or pipeline: a CLI fits better. Many people use both - an IDE for hands-on work, a CLI for anything that runs unattended.

EXAMPLE

IDE workflow: open Cursor, describe a bug in the chat panel, review the inline diff, click Accept. CLI workflow: run claude "fix the failing auth test and show me the diff" in your terminal, then run 'git diff' to review the changes.

🛠️ EXERCISE — TRY IT YOURSELF

Compare the same small task done through a CLI agent and, if you have access, an IDE agent.

Pick a tiny task, e.g. 'add a docstring to one function.'
If you have Claude Code or another CLI agent installed, run it on that task and note how you review the result.
If you have an IDE-based tool like Cursor, do the same task there and note how the result is shown.
Compare: which felt faster, and which made you more confident the change was correct?

✅ SELF-CHECK

☐ Could you name what felt visually easier in the AI IDE?
☐ Could you name where the terminal CLI (e.g. on a server) would have the advantage?
☐ Did you understand how Claude Code connects both worlds through its editor extension?

QUICK QUIZ

What's the main practical advantage of a CLI-based AI coding tool over an IDE-based one?