Codex training

Codex training for engineering teams

Codex training for engineering teams who build, review and ship in their own repository. Two days on site, on your own codebase. Your team leaves with a setup it keeps using.

€2,800 excl. VAT + travel · 2 days · 5 people max · on site

Who this is for

  • Engineering teams who want Codex writing and reviewing code in their own repository.
  • Tech leads who need guardrails before the team lets an agent run commands.
  • By the next morning: an AGENTS.md rules file the team keeps using.
  • By the next morning: approval and sandbox settings the team agreed on.

Programme

Day 1

Morning

  • Setup on your own repository: CLI or IDE extension, AGENTS.md rules, project context.
  • Planning before coding: what to ask an agent to draft first.

Afternoon

  • Test-first changes with an agent.
  • Code review habits: keeping diffs small, reading before merging.

Day 2

Morning

  • Approval modes and the sandbox: what the agent may run without asking.
  • Delegating longer tasks to the cloud and reviewing what comes back.

Afternoon

  • Parallel work on several tasks without stepping on each other.
  • The PR discipline we use: CI green before merge, measuring agent work, a team setup to keep.

Where the method comes from

The rules, review habits and PR discipline taught here are the ones we run on our own delivery, measured on our agent fleet: 73 pull requests merged in 7 weeks, 34 minutes of agent work per PR.

73

PRs merged in 7 weeks

34 min

agent work per PR

Financing

We are not Qualiopi certified. Training is invoiced directly to your company: no OPCO or CPF funding.

Questions

How much does it cost?

€2,800 excluding VAT, plus travel if the session is outside our base. One session, up to 5 people.

How long does it last?

Two full days, on site.

Do you come to our offices?

Yes. The session runs in your repository, on site, from day one.

How many people can attend?

Five people maximum, so everyone practises on their own machine.

What do we need before the training?

A ChatGPT plan that includes Codex, or an OpenAI API key, and a repository the team can work on during the session.

Which language is the training in?

French or English, you choose.

Can we finance this through our training budget?

We are not Qualiopi certified, so OPCO and CPF funding do not apply. The training is invoiced directly to your company.

Other trainings

Claude Code training

The same programme on Claude Code, Anthropic's coding agent.

€2,800 excl. VAT · 2 days

See Claude Code training

ChatGPT training

For non-developer teams: writing, analysis and everyday work with ChatGPT.

€2,800 excl. VAT · 2 days

See ChatGPT training

Book this training

Book: Codex training