best prompt engineering resources:
- https://platform.openai.com/docs/guides/prompt-engineering
- https://docs.anthropic.com/en/docs/build-with-claude/prompt-engineering/overview
- how to prompt reasoning models like o1 - suggested by Greg Brockman
- https://simonwillison.net/2025/May/25/claude-4-system-prompt/
- https://www.promptingguide.ai/ - this is a huge repo with a lot of advanced methods, but the above two cover the most important ones.
