🧩the official prompting guides, straight from anthropic openai and google

no blogspam versions. these are the docs the labs themselves publish and actually keep updated

starts with when prompt engineering is even the right fix, before it gets into technique. most guides skip that part

Anthropic - Claude 4 prompting best practices

a literal notebook you run cell by cell. did this one twice, actually stuck the second time

the six-strategies version. "give the model time to think" is the one people skip and shouldn't

OpenAI Cookbook

the few-shot formatting warning here is underrated, inconsistent example formatting quietly breaks output more than people think

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