Training course · OpenAI Codex · Citizen Developers & Low-Code

OpenAI Codex for Citizen Developers

Delegate development work with OpenAI Codex: CLI and cloud agent, AGENTS.md, sandboxing, approvals and team PR workflows.

Duration
2 days (14 hrs)
Format
Online or on-site
Language
German or English
Participants
open dates or exclusive for your team
Certificate
Certificate of attendance

Overview

“OpenAI Codex for Citizen Developers” is designed for roles such as Business users with automation ideas in administration, sales, procurement or HR, Power users of Excel, Power Platform or similar low-code tools and Process owners and business analysts and shows step by step how to use OpenAI Codex productively, safely and transparently in Citizen Developers & Low-Code – from the fundamentals to advanced workflows.

OpenAI Codex is a coding agent that runs both locally, as a command-line tool and IDE extension, and as a cloud agent. Locally, Codex reads your repository, proposes changes and runs commands inside a sandboxed environment. In the cloud, it works on delegated tasks in parallel inside isolated containers and returns results as traceable diffs or pull requests. Over two days you will learn how to combine both modes effectively and how to scope tasks so that the agent can complete them reliably and with minimal back-and-forth.

Control and security sit at the heart of the course. With AGENTS.md you hand Codex project knowledge, build and test commands, and conventions. You configure approval modes and sandboxing so that the agent only does what you permit, and you set up cloud environments with suitable setup scripts. You will also integrate Codex into your pull request workflows, use automated code review, and define team rules on which tasks are delegated and how results are checked before they are merged into the main branch.

Citizen developers are business users who build their own applications and automations without being professional software engineers. Until recently, low-code platforms quickly hit their limits whenever custom logic, integrations or data transformations were needed. AI coding tools push that boundary much further: a plain-language description becomes forms, workflows, scripts and small web apps, and AI explains error messages, formulas and expressions in understandable terms. Responsibility grows at the same time, because home-built solutions also process company data and need maintenance. In this course you learn to use vibe coding and AI agents to build useful solutions for your department, combine them sensibly with low-code platforms and stay within your IT governance rules.

The course is delivered live – either online in a virtual classroom or on-site in our training rooms in Munich, Salzburg, Berlin, Augsburg, Hanover, Bremen, Stuttgart and Kaiserslautern. We can also run it exclusively for your team.

Who is this course for?

  • Business users with automation ideas in administration, sales, procurement or HR
  • Power users of Excel, Power Platform or similar low-code tools
  • Process owners and business analysts
  • Members of digitalisation and innovation teams
  • IT leads setting up a citizen development programme

Typical challenges we address

  • Recurring manual tasks that IT has no capacity to automate
  • Low-code platforms hit limits with custom logic, integrations or data preparation
  • Little know-how on testing, documenting and running solutions safely
  • Risk of shadow IT without alignment with data protection and IT security

What you will be able to do

  • You use Codex locally and in the cloud for the development tasks each mode suits best.
  • You write an AGENTS.md that guides the agent reliably through your project.
  • You configure approval modes and sandboxing to match your security requirements.
  • You delegate tasks to the cloud agent and review the results systematically.
  • Build your own automations, forms and small applications for your department with AI support.
  • Combine low-code platforms with generated code for logic, data preparation and integrations.
  • Document, test and run your solutions in line with your IT governance rules.

Course outline

Day 1

Module 1 Codex at a glance: CLI, IDE and cloud
  • Comparing how Codex works locally and in the cloud
  • Installing the Codex CLI, signing in and starting it in a repository
  • Interactive sessions, non-interactive execution and model choice
  • Distinguishing tasks that suit a coding agent from those that do not
Module 2 Project knowledge with AGENTS.md
  • Building an AGENTS.md with build, test and lint commands
  • Stating conventions, architectural notes and prohibitions precisely
  • Using nested AGENTS.md files for monorepos and sub-projects
  • Checking effectiveness and refining instructions iteratively
Module 3 Sandboxing, approvals and security
  • Choosing approval modes deliberately, from read-only to largely autonomous
  • Understanding sandbox boundaries for file system and network access
  • Handling secrets, dependencies from the internet and prompt injection
  • Configuration files for team standards and safe defaults
Module 4 Delegating tasks to the cloud agent
  • Configuring cloud environments with setup scripts and dependencies
  • Writing tasks with a clear goal, context and acceptance criteria
  • Launching several tasks in parallel and comparing the results
  • Using logs and test output to understand the proposed solutions

Day 2

Module 5 PR workflows and code review in the team
  • Turning results into pull requests and requesting follow-up changes
  • Using automated Codex code review on GitHub
  • Embedding Codex in scripts and CI pipelines
  • Setting team rules for delegation, review duties and accountability
Module 6 Practice lab: Citizen Developers & Low-Code
  • Automating workflows
  • Building forms and small apps
  • Explaining formulas and expressions
  • Cleaning and transforming data
  • Connecting to interfaces
  • Documenting and testing solutions
Module 7 Data protection, quality & transfer to daily work
  • Home-built solutions also process company and employee data: you learn to respect GDPR requirements, IT approval processes, secure handling of credentials and the licence terms of platforms and generated code, so that no shadow IT emerges.
  • Ground rules for safe AI use in your team
  • Checking results: facts, sources, tests and the four-eyes principle
  • Personal action plan for the next 30 days
  • Open questions, outlook and resources for further learning

Practical scenarios from your field

Automating workflows

Describe approval processes, notifications and data transfers between email, spreadsheets, forms and business applications on low-code platforms, and have AI build the matching flows, expressions and conditions.

Building forms and small apps

Generate data entry forms, checklists or booking apps from a description, complete with validation, mandatory fields and simple data storage, and refine them step by step based on colleagues’ feedback.

Explaining formulas and expressions

Have complex Excel formulas, Power Fx or flow expressions explained in plain terms, track down errors and reliably write new calculations from a business description.

Cleaning and transforming data

Merge exports from different systems, remove duplicates, standardise formats and generate Python scripts or Power Query steps that make the preparation repeatable. Monthly preparation then takes minutes, not hours.

Connecting to interfaces

Use AI to understand how a REST interface works, configure connectors and set up simple API calls that bring data from business systems into your own solutions.

Documenting and testing solutions

Produce user guides, short technical documentation and test cases for home-built applications so colleagues and IT can understand, take over and keep running the solution.

Possible hands-on projects

Leave and cover planner

A small web app where team members enter absences, assign cover and give the team lead a monthly overview. Overlaps are flagged automatically.

Incoming invoice checker

A script that reads incoming PDF invoices, checks mandatory details and transfers the data into a structured spreadsheet for approval.

Request tracker

A simple ticketing tool for internal requests with a form, status history, assignments and automatic email notifications. Everyone keeps track of open and completed requests.

Prerequisites

You have hands-on programming experience, are comfortable with Git and the command line, and know pull-request-based workflows. You are confident with office applications and spreadsheets; no programming skills are required, though experience with a low-code platform helps.

Technical requirements

Your own laptop with a terminal, Git and a Node.js runtime; a ChatGPT plan with Codex access or an OpenAI API key, plus a GitHub account for the cloud exercises.

Data protection & compliance

Home-built solutions also process company and employee data: you learn to respect GDPR requirements, IT approval processes, secure handling of credentials and the licence terms of platforms and generated code, so that no shadow IT emerges.

Suggested dates

All dates are suggestions – your preferred date is always possible.

  • Mon, 23 November 2026 – Tue, 24 November 2026 Online Request
  • Mon, 30 November 2026 – Tue, 1 December 2026 Augsburg Request
  • Wed, 16 December 2026 – Thu, 17 December 2026 Online Request
  • Tue, 12 January 2027 – Wed, 13 January 2027 Online Request
  • Mon, 25 January 2027 – Tue, 26 January 2027 Kaiserslautern Request
  • Tue, 2 February 2027 – Wed, 3 February 2027 Online Request

Frequently asked questions

When should I use Codex locally and when in the cloud?

Locally you work interactively and close to the code, for example when debugging or making exploratory changes where you want to follow every step. The cloud agent suits well-defined tasks that can run independently, such as adding tests or fixing smaller bugs. You can start several of these in parallel and review each one as a pull request.

What belongs in a good AGENTS.md?

A good AGENTS.md explains how the project is built, tested and checked, which conventions apply and which areas must not be touched. It is concise, concrete and kept up to date. Notes on architecture and common pitfalls also help. During the course you write an AGENTS.md for a project of your own and test how it changes the agent’s behaviour.

How safe is it to let Codex run commands?

By default Codex works inside a sandbox with restricted file and network access and asks for approval before risky steps. You decide how much autonomy to grant through approval modes and configuration. In the course you learn to choose these settings deliberately and to limit risks such as prompt injection or running unfamiliar dependencies.

Do I need programming skills to work with AI as a citizen developer?

No. You describe what your solution should do and the AI generates forms, flows, formulas or scripts. What matters is stating your requirements clearly and checking results systematically. In the course you learn the essential concepts such as data, logic, interfaces and testing so you can steer precisely and narrow down errors yourself.

How do we avoid shadow IT?

With clear rules rather than bans: approved platforms and tools, defined data classes, a simple register of home-built solutions and a route for handing over to IT once an application becomes business-critical. In the course you learn to apply such rules, and IT leads gain ideas for setting up a citizen development programme.

How much does “OpenAI Codex for Citizen Developers” cost?

The course costs a flat €949 plus VAT per participant – whether online or on-site. This includes 2 training day(s) with a live trainer, course materials, a lab environment and a certificate of attendance.

Can I suggest my own date?

Yes. Our suggested dates are just a guide. In the request form you can always describe your preferred date or period in free text – we check availability and confirm within one working day.

Is the course online or on-site?

Both are possible: live online in a virtual classroom or on-site in Munich, Salzburg, Berlin, Augsburg, Hanover, Bremen, Stuttgart or Kaiserslautern. We can also run the course exclusively for your team.

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