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Codex 101

A short introduction to how Codex works, before you put it to work on a real project.

A five-minute tour of the Codex loop before you run it yourself.

What you will learn

The loop. Describe the work, let Codex inspect the project, then review the output with a clear eye.
Where Codex fits. The kinds of tasks worth handing over, and the ones to keep close.
Review habits. Keeping the work accountable through source checks, version history, and human signoff.

Runnable checklist

Watch a chapter, run the step, check the output.

Step 01

Watch 3 min

Connected workspace

Point Codex at a real folder and confirm what it can see before you ask for anything.

Codex is installed and open A project folder is open, not a blank window You can see the files Codex sees You know what is in and out of scope

Step 02

Watch 5 min

Clear prompt

State the goal and the constraints in plain language, then let Codex decide the how.

Goal stated in one or two sentences Constraints named up front The done condition is explicit You resisted dictating exact steps

Step 03

Watch 4 min

Grounded plan

Ask it to read the relevant files and restate the task back before changing anything.

Codex read the relevant files It restated the task in its own words It proposed a plan you could follow You corrected wrong assumptions early

Step 04

Watch 5 min

Reviewed change

Read the actual change, not just the summary, and check that claims trace to real files.

You read the diff, not just the summary Claims trace to real files You ran or tested the result Nothing surprising slipped through

Step 05

Watch 3 min

Safe to keep

Put the work under version control so you can undo in one step and a human can sign off.

Work is committed to version control You can undo the change in one step A human signed off before it ships You noted what to reuse next time

Once you are comfortable with the loop, put it to work on the Fundraising Pipeline , or browse all workflows .