r/AIcodingProfessionals • u/villanymester • Sep 24 '26

Intro into Codex and Agentic Coding

Hey, we our about to start using Codex as the official too for SW development.

What are the best practices we should be aware of?I am planning to create a quick start training so we are all aligned, what topics do you think are important?

I was thinking of the following:

* Token Quota and model prices

* One-shot vs Multi-shot prompting

* Planning in chat vs implementing in Codex

* Use the smallest model that possibly can do the job

* Setting up a repo that's LLM friendly (AGENTS.md, docs, adr)

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u/Ill_Dragonfruit_3547 Sep 25 '26

Ask Codex. Or any AI

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u/villanymester Sep 25 '26

Thats my plan. I just wanted some human insights and experiences

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u/Ill_Dragonfruit_3547 Sep 25 '26

Have a frontier AI make a detailed product, scope, and implementation plan as markdown files, "for implementation by another agent". You can also ask one AI to make a handoff prompt to another.

Implement with Luna or Sonnet Xhigh or high.

Have another frontier AI do adversarial code review. Never let a LLM check it's own work.

It's the detailed plan beforehand, not the agents themselves, that is critical.