Codex Bible
Prompts
35 materials by task
Materials: 35
Documents and data
Build an Obsidian knowledge base for Codex
PromptsResume from current project files and repeat checks when there is a reason.
Ask Codex to establish the project’s current state and continue with the next step.
Create and edit a Word document or PDF
PromptsThe answer should show where supporting evidence appears in the document.
Clean and merge spreadsheets
PromptsAgree on duplicate rules before removing rows. Matching names alone do not prove duplication.
Build a spreadsheet with formulas and a chart
PromptsCheck calculations against source rows, period and units.
Development
Connect a tool and test it
PromptsAsk Codex whether you need the tool and what connecting it would involve.
The sample server reads notes from a separate folder. Ask Codex to run the trial and show a fresh result.
Try LinkedIn Skills on one practice task. The tool card covers setup and checks.
Try DeepSeek Harness on one practice task. The tool card covers setup and checks.
Try Agent Reach on one practice task. The tool card covers setup and checks.
Build an MCP server that reads practice notes from one folder. The SDK helps write the server; connecting it to your Codex is a separate check.
Give Codex search and reading access to official OpenAI documentation through Docs MCP. For example, find MCP configuration instructions for your client.
Fix a project bug
PromptsTest your form in a real browser with Playwright Test. Start with successful submission and two errors the user should see.
Video and audio
Turn a long video into short clips
PromptsCheck needed features and file transfer before connecting the tool.
Create a transcript and subtitles
PromptsWatch the complete file and listen to speech after the final export.
Improve a speech recording
PromptsWatch the complete file and listen to speech after the final export.
Check a short sample in the chosen editor first.
Edit a video from your own footage
PromptsCut a short segment from your video with FFmpeg. Keep the original and check the finished file by watching and listening.
Check the export itself, including audio, rather than only editor settings.
Check a short sample in the chosen editor first.
Short video from AI scenes
PromptsCombine clear text, the selected voice and checks of the finished scene.
Design
Edit an image while keeping important details
PromptsDefine the image’s purpose, format and details that must remain.
Create a cover for a YouTube video or short clip
PromptsDefine the image’s purpose, format and details that must remain.
Prepare a logo and website icon
PromptsDefine the image’s purpose, format and details that must remain.
Design a website or app interface
PromptsTest the actual screen with long text, an open menu and a form error.
An image shows the screen; actions and states need separate clarification.
Create a design system for your site or app
PromptsAgree on a small set of design rules and test them on an actual screen.
Rules are useful when they match the interface, not only the document.
Content and social
Analyze publications and find your own topics
PromptsTry Scrapling on one practice task. The tool card covers setup and checks.
Try ScrapeGraphAI on one practice task. The tool card covers setup and checks.
Content for a week
PromptsTurn checked ideas into a publishing plan: topic, original example, format, date, and a way to evaluate the result. Paste the prompt into Codex or Work with access to your materials.
Describe one item’s workflow from checked facts to finished RU/EN versions.
Create a carousel and save the slides
PromptsGet a set of slides and an editable source. Paste the prompt into Codex or Work with access to your materials.
Websites
Web app with user accounts
PromptsBuild a Chrome extension that shows the current page title when you click its button. Manifest V3 defines its structure and permissions.
Business website
PromptsRun builds and tests when your project changes with GitHub Actions. Start with checks that already work locally.
Marketing
A page for search and enquiries
PromptsUse PostHog to see how many people successfully submit a form. Start with one event so the metric is clear and testable.
Automation
Build a Telegram bot for your task
PromptsPrepare one bot command and test it with sample data first.
Check commands, access and repeated events before continuous deployment.
Prepare settings, restart and shutdown before choosing a paid server.
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