OpenAI DevEx shows how Codex can run Slack, email, and even flight check-in tasks
petergyang · x · 2026-07-26
Jason’s Codex workflow turns Slack, email, and travel chores into agent tasks
Peter Yang interviews @jxnlco from OpenAI DevEx about how he uses Codex across the workday.
- He frames the job as: “understand what you don’t like, put it into words, and tell the AI.”
- Codex can act like a chief of staff for Slack and email.
- Past sessions can be turned into reusable AI skills.
- Long-running projects can be given verifiable goals.
- Examples include asking Codex to learn his writing style from a week of Slack messages, synthesize priorities from Slack/Linear/email, and even find a flight booking, check in, and text the boarding pass.
Yang says Jason also wrote OpenAI’s official handbook for getting the most out of Codex.
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