From the OpenAI Codex Masterclass video

Get the Codex Masterclass Cheat Sheet

All 10 things from the Vaibhav + Katia masterclass — sub-agent persona TOML examples, the three Hooks recipes (session-start / post-tool-use / stop), the plugin map, and model picks by scenario. Drop the TOML into ~/.codex/agents/ and Codex picks it up automatically.

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