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How to Use OpenAI Codex (Step-by-Step Tutorial)

Transcript reviewed · recording and outcomes not independently reproduced

Kevin StratvertSource published Added to Agents In Use Open on YouTube ↗

What the transcript explains

Kevin builds a Cookie Shop Tycoon browser game with Codex, then adds animations, reviews changes and delegates three improvements to separate worktrees. He opens each version and brings only cookie varieties back into the main project. The walkthrough gives a concrete example of reviewing parallel agent output before integration.

Limits and human checks

  • The displayed profit is fictional game currency, not money earned by the creator.
  • Reported build times and gameplay checks are the presenter's observations, not independently benchmarked results.

Our notes are based on the caption transcript, reviewed 2026-10-15. Caption errors and differences from what appears on screen remain possible.

Evidence at a glance

Transcript reviewed
Source author
Kevin Stratvert
Original account
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. Recording not visually reviewed; results not independently reproduced.
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About this source

Caption transcript reviewed by Agents In Use on 2026-10-15; the account remains author-reported.

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