Learn AI · 5 lessons · Free, live now
Coding Agents and CLIs
Five lessons on the coding agents that are not Claude Code. What each one does differently, the rules file each one reads, what your existing subscription already includes, and a decision table for picking one without guessing.

When you finish, you can
Name what Codex, Cursor, and Grok Build each do differently, set up the rules file each one reads, and choose the right tool for a given job.
The lessons
- 01The landscapeWhat every coding agent shares, where they differ, and why the names change monthly.
- 02CodexOpenAI's coding agent: CLI, editor extension, cloud tasks, approval modes, and AGENTS.md.
- 03CursorThe editor-first approach. Agent mode, rules files, and when an editor beats a terminal.
- 04Grok BuildxAI's terminal agent. What ships, who gets it, and where it fits.
- 05Picking oneA decision table by job, comfort level, and the plan you already pay for. Running two at once.