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In a few minutes, Codex CLI will
be working in your project folder,

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and you'll know how
to keep it in check.

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AI for Research Efficiency.

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Episode 2.2: Install Codex CLI.

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Last time: a terminal, a project folder,
Git and Python, and an account.

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In this episode: install Codex CLI,

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sign in,
run it in your project folder,

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and check each step
before you speed up.

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Step one: in PowerShell,
paste this line.

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It starts PowerShell with permission
to run OpenAI's installer,

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then downloads it and runs it.

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On a Mac, use the second line,
in Terminal.

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Both lines are on the companion page.

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Step two: close the terminal,
open a new one,

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and type codex --version.

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You should see a version number.

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Step three:
go into your project folder with

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cd agent-work, and type codex.

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Always start it in a project folder,
never in your home folder.

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Step four: choose how to sign in:
with your ChatGPT plan,

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or with an OpenAI API key
you pay for as you use it.

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Your browser opens. Sign in there,
and you're back in the terminal.

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Step five: Codex asks whether
to trust this folder.

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It's your project folder:
trust and continue.

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On Windows,

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it also sets up a sandbox that keeps
its commands inside this folder.

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If your computer won't
allow the stronger sandbox,

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Codex uses a weaker one,
which still works.

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Step six: type slash permissions
to choose how much it may do.

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While you learn,
choose Ask for approval.

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It works on its own inside
your project folder,

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and asks before going beyond it.

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In a folder without Git,
it starts read-only,

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so it can look,
but not change anything.

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Step seven: ask it something.
What's in this folder?

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It looks through the folder,
and answers in plain words.

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Step eight:
when you trust it with a task,

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choose Approve for me
in slash permissions.

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An automatic reviewer answers its
requests, and the work goes much faster.

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OpenAI's own advice: for most work,
start with Ask for approval.

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Pause now: install Codex CLI, open a
new terminal, and check the version.

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So: one line to install, a new terminal,
your project folder, sign in,

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trust the folder, Ask for approval first,
then Approve for me when you trust it.

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Next: a worked example.

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Agents read a whole literature folder
in parallel, and check every claim.