Prompting for reliable answers
How to ask so the answer comes back with what you need to check it.
Context engineering
Context engineering explained: what it covers beyond the prompt, why more context can make answers worse, and four habits that keep long AI tasks accurate.
Data analysis prompts
Five copy-paste prompts for data analysis that make ChatGPT or Claude state its definitions, calculate in code, flag missing data and keep assumptions apart.
Financial analysis prompts
Copy-paste ChatGPT and Claude prompts for financial analysis that force units, periods, definitions and shown calculations, plus a two-minute tie-out check.
Optimise a prompt
How to improve an AI prompt systematically: success criteria, test cases, one change at a time. Plus what prompt optimizer and enhancer tools do, and don't.
Prompt engineering guide
Prompt engineering guide: the techniques Anthropic, OpenAI and Google still recommend, the 2023 habits to drop, and examples to copy for analysis and research.
Prompts that cite sources
The grounding techniques Anthropic, OpenAI and Google all recommend, with copy-paste prompts and a two-minute check for the citations you get back.
System prompts
What a system prompt is, where it lives in Claude, ChatGPT and Gemini, what Anthropic's guide says for the newest Claude models, and an example to copy.