OpenAI publishes cookbook entry on using Goals in Codex that explains activation timing, sustained focus on one objective, goal writing with outcomes and constraints, and architecture choices
Greg Brockman shared links to practical workflow examples.
how to use /goal in codex — keep Codex working on a persistent objective until it's solved:
My colleagues wrote up a great post on using Goals in Codex. They go through when to use them, what changes when a Goal is active, and how to write Goals that give Codex a clear outcome, constraints and verification criteria. Also how we designed Goals at the architecture level if you’re curious. https://developers.openai.com/cookbook/examples/codex/using_goals_in_codex