The gap between a useless AI reply and a great one is usually the prompt, not the model. Anthropic, the company behind Claude, publishes clear guidance on this, and it comes down to a few habits anyone can learn.
1. Be clear and direct
Say exactly what you want, for whom, and in what format. Vague in, vague out. "Write something about our product" gets filler. "Write 3 subject lines for a launch email to small-business owners, under 8 words each" gets usable options.
2. Show an example or two
Few-shot prompting, giving one to three examples of the output you want, is one of the most reliable ways to steer tone and structure. Paste a sample you like and say "match this style."
3. Let it think first
For anything involving reasoning, ask the model to work step by step before it answers. It measurably improves quality on analysis, planning, and math.
4. Give it a role and context
Telling the model who it is ("You are a careful financial editor") and pasting the relevant background sets the tone and keeps it on track.
5. Ask for the format you need
End with the shape of the answer: a table, a bullet list, a 100-word summary. You get back something you can use immediately.
None of this is technical. It is just clear communication, and it is exactly what we practice in AI 101.