You do not need a big AI setup to get value

The most useful AI workflow I have is one file. A short AGENTS.md contract that tells the agent how to behave in my repo.

No framework. No prompt library. No fine tuning. Just a list of rules the agent reads before it starts.

You would be surprised how much bad behavior disappears when the first thing your agent reads is a list of things you will not accept.

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Dean Lee

Real-time AI & tech analysis through economics & game theory. Follow the incentives: who wins, who pays, what happens next. Master’s in Business, CUHK

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  Master’s in Business, The Chinese University of Hong Kong (CUHK)

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  he/him

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  Quantitative finance professional in stochastic models and option pricing.

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  Jul 16, 2026

• Aug 12

I like the one-file framing. The constraint that matters is less prompt length than where the rules sit in the workflow. If the agent reads them before touching the repo, the file becomes a cheap loss-control layer rather than another prompt artifact.

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