Codex for Non-Developers

An AI-native office worker's
everyday Codex workflow

Jeongmin Lee

Generated by GPT-Image-2

INTRO

I'm Jeongmin Lee, working with agents on my own

2026.05 -
Present

ABLD

CEO, Solo Builder

Building fast, accurate AI workflows and services

2023.05 -
2026.04

Smoretalk

CSO, Co-Founder

Raised KRW 3.5B and partnered with Google and NVIDIA

2021.10 -
2022.02

Bluepoint Partners

Research Assistant

Market sector analysis and investment review

RESEARCHER

AI engineer recognized for expertise

Ranked #1 on the Open Ko-LLM Leaderboard
Youngest member of the NIA project coordination committee

CREATOR

AI creator people turn to

Around 10,000 LinkedIn followers
Sharing practical AI workflows

WHY CODEX

Why non-developers should use Codex

You do not need to learn to code to run your own work in an AI workspace.

01.

An accessible way to work

Start from a request in the Desktop App, without opening a terminal
Follow and control the work through chat and approvals
Check the result on screen in a familiar interface

02.

An integrated workspace

Manage files, results, and progress in the same workspace
Use Plugins, Skills, and Automations to connect repeat work
Keep the work context in one place

03.

The ability to handle complex work

Break complex work into planning, execution, and review
Finish long research and document cleanup tasks
Automate repeat work that moves across several tools

04.

A highly reliable environment

Generous credits give you enough room to test and run work
A stable environment keeps delegated work from stopping
Build repeatable workflows, standards, and outputs over time

REASON 01

An accessible way to work

In the Codex app, you can use agent features easily without touching the terminal.

Multitask across projects

Run project threads side by side and switch quickly.

Worktrees

Keep parallel changes isolated with Git worktrees.

Remote connections

Start, steer, approve, and review work remotely.

Computer use

Use macOS apps for GUI flows and native testing.

Appshots

Send the frontmost Mac app screenshot and text.

Review and ship changes

Inspect diffs, address feedback, commit, and push.

Terminal and actions

Run commands and launch repeatable actions.

In-app browser

Open rendered pages and operate browser flows.

Chrome extension

Use Chrome for signed-in tasks with approvals.

Image generation

Generate or edit images inside the thread.

Automations

Schedule recurring tasks and ongoing checks.

Skills

Reuse instructions across app, CLI, and IDE.

Sidebar and artifacts

Follow plans, sources, summaries, and files.

Plugins

Connect apps, skills, and MCP servers.

Sites

Build and deploy hosted sites, apps, and games.

IDE Extension sync

Sync Auto Context and threads across sessions.

REASON 02

An integrated workspace

Run your work inside one workspace.

Task Status Check progress

Chat

Requests and edits

Interactive task instructions

Files

Documents and materials

Connected context

Browser

Work on web pages

Search · input · check

Computer Use

Control apps

Run local work

Plugins

Connect services

Drive · Gmail · Calendar

Automations

Repeat runs

daily · weekly · event

REASON 03

It can handle complex work

With GPT-5.5, Codex can plan, execute, and check complex work until it is done.

STEP 1

Plan Mode

Turn a request into
a plan with steps
and checks.

STEP 2

Plugins

Connect email, calendar,
and documents to
the task context.

STEP 2

Browser Work

Continue search, comparison,
file entry, and submission
in the browser.

STEP 2

Computer Use

Move across screens and files
to run tasks that used to
require a person.

STEP 3

Skills

Save repeat procedures
and review criteria
as reusable templates.

STEP 3

Automations

Turn work into automated
daily, weekly, or
event-based routines.

REASON 04

A highly stable environment

Stable credits, tools, and context keep work from stopping.

More credits at the same subscription price.
Enough for long research and document creation.
Remaining work continues after credits run out.

Faster reasoning and a more stable system.
Saves context and state to reduce interruptions.
Less restart time, faster final output.

Built for repeated work loops.
/goal helps you write clear goals and success criteria.
Long agent runs stay in one context.

Stabilitymaximized

BEFORE / AFTER

Work changes after Codex

Before Codex: work feels scattered

After Codex: work feels easier

You keep moving context across web and app screens

Chat, files, apps, and browser work stay in one thread

You copy answers back into documents by hand

Docs, Sheets, Slides, and web work become real outputs

You step in for signed-in website tasks

Computer Use and Chrome Extension take over screen work

You explain standards and tone every time

Skills store your standards, procedures, and quality bar

You ask again whenever repeat work comes up

Automations run daily, weekly, or event-based work

You keep checking windows to see progress

Task status and outputs are visible in the same workspace

SETUP FLOW

Start simple. Set up the basics well

Install the essentials first. Personalize later as you use Codex.

01

Install apps

Mac + Codex Desktop App + Chrome
iOS / Android + ChatGPT app
ChatGPT Plus or higher subscription

02

Set up workspace

Local: run in the current project
Worktree: isolate changes while running
Cloud: run in a configured remote environment

03

Set permissions

Permissions: Default permissions
Choose automatic review when available
Turn on full access only for work you trust

04

Connect Plugins

Chrome + Codex Chrome extension
Computer Use
Gmail, Google Calendar, Google Drive

05

Prepare Skills

@Chrome = web work
@Computer = file and app work
obra/superpowers, garrytan/gstack, and more

06

Personalize later

Use it for three days, then find repeat work
Daily / every few days / event-based
Automate tools + tasks + outputs

OUR ROLE

Our role is to be the designer

We need to design the flow of work, not just think about each task.

Design the work Goals and standards

HUMAN

Define goals and output standards
Provide the materials and constraints

Manage execution Connect the workflow

CODEX

Connect app, browser, and file work
Create drafts and share interim results

Verify results Quality and ROI

TEAM

Compare quality with human output
Check ROI from saved work time

1 PERSON COMPANY

I run a one-person team with Codex

The seven examples below are workflows I have used in the Codex Desktop App.

Content marketing

Collect core keywords and popular sources
Draft scripts for each platform format

External meeting prep

Research prospects and industry issues
Prepare questions, agendas, materials, and follow-up emails

Contracts and settlement

Combine estimates, contracts, tax invoices, and email
Organize stages and next-action checklists

Scheduling, tax, and back office

Coordinate online and offline meeting times
Remind me of withholding tax and VAT deadlines

Content marketing, meeting prep, contracts, and schedule/tax flow into Jeongmin Lee and then clients

USE CASE 01

Research competitor updates

Collect competitor news every day

x.com xURL
last30days skill
Exa MCP
Automation (Codex)

Research competitor updates final video frame from three seconds before the end

SETUP FLOW 01

for: Research competitor updates

Input Competitors + channels

Example - Fal, Higgsfield on x.com

Intent 7-day update research

Announcements, product updates,
community reactions

Execution tools

$last30days

- recent social detection

Exa MCP

- recent web search

Guardrail Search only

No other activity

Output Report + XLSX + timeline

Key insights and original sources

Full one-shot prompt is not provided separately

USE CASE 02

Create content for distribution

Produce writing, images, and video in one flow

imagegen (Codex)
Hyperframe skill

Create content for distribution final video frame from three seconds before the end

SETUP FLOW 02

for: Create content for distribution

Input News message

Example - OpenAI x Oracle article URL

Intent Create carousel image

1080x1350 first image

Execution tools $imagegen

with HTML/CSS,
Hyperframes

Guardrail No invented
information

Use extra search
for logos, etc.

Output Carousel PNG

Image for external distribution

Full one-shot prompt is not provided separately

USE CASE 03

Create meeting and presentation materials

Create external meeting materials with less effort

Gmail Plugin (Codex)
Google Drive Plugin (Codex)
slide skill

Create meeting and presentation materials final video frame from three seconds before the end

SETUP FLOW 03

for: Create meeting and presentation materials

Input Related information

Ex - recording, brief, email title, etc.

Intent Rebuild deck

About 10 slides, 16:9 storyline

Execution tools HTML/CSS
$future-slide

Guardrail No invented
information

Use source materials only

Output HTML deck

Browser-ready slide deck

Full one-shot prompt is not provided separately

USE CASE 04

Send daily client status reports

Report client communication status every day

Gmail Plugin (Codex)
Calendar Plugin (Codex)
Automation (Codex)

Send daily client status reports final video frame from three seconds before the end

SETUP FLOW 04

for: Send daily client status reports

Input Gmail check request

Email check and calendar status

Intent Meeting slots + reply

Request summary, suggested times, reply

Execution tools @Gmail
@Google Calendar

Guardrail Do not send

User approval first

Output Summary +
time options +
reply draft

Review directly in chat

Full one-shot prompt is not provided separately

USE CASE 05

Research outsourcing outreach targets

Find candidate companies with browser automation

Computer use (Codex)
Chrome Plugin (Codex)
Spreadsheets Plugin (Codex)
Automation (Codex)

Research outsourcing outreach targets final video frame from three seconds before the end

SETUP FLOW 05

for: Research outsourcing outreach targets

Input Logged-in browser

Outsourcing platform
project browsing screen

Intent Find winnable projects

Filter by budget, timeline, and risk

Execution tools @Computer Use or
@Browser
@Spreadsheet

Guardrail No outreach

Browse and organize only

Output Candidate XLSX

Top recommended candidates

Full one-shot prompt is not provided separately

USE CASE 06

Draft contracts and issue tax invoices

From document drafting to execution

Gmail Plugin (Codex)
Bolta CLI

Draft contracts and issue tax invoices final video frame from three seconds before the end

SETUP FLOW 06

for: Draft contracts and issue tax invoices

Input File name +
Gmail name

Existing contract template and
new contract terms direction

Intent Draft contract

Parties, scope, fee, acceptance terms

Execution tools @Gmail
@Google Drive
@Documents

Guardrail Do not overwrite

Create a new DOCX only

Output Contract DOCX

Draft contract file

Full one-shot prompt is not provided separately

USE CASE 07

Build a card spending dashboard

Manage spending visually

Google Drive Plugin (Codex)
Site (Codex)

Build a card spending dashboard final video frame from three seconds before the end

SETUP FLOW 07

for: Build a card spending dashboard

Input Card transaction file

Drive file plus
dashboard update instructions

Intent Create spending report

Classify sectors and summarize metrics

Execution tools @Google Drive
@Spreadsheets
@Browser

Guardrail Hide sensitive data

No card or approval numbers

Output Dashboard HTML + JSON

Spending report and summary data

Full one-shot prompt is not provided separately

SUMMARY

Codex is a new work environment for everyone

It lets anyone run repeat work to completion, without making the workflow complicated.

R Request

Put notes, files, and links
in one thread, then state
the output and standards

E Execute

Connect Browser,
Computer Use, and Plugins
to search, organize, and create

V Verify

Review interim results,
ask for changes, and focus
on judgment and review rules

S Systemize

Save repeat work as Skills,
then delegate part of it
to Automations

Don't do the work alone.

Let Codex handle the work.

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