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Lesson 04 · Intermediate · 3 min

Define the output contract

Tell the model the exact shape of the answer so you never have to re-ask for formatting.

Why

Without a format, you get prose when you wanted JSON, or a wall of text when you wanted a table. Production tools specify a strict output contract so responses are parseable and predictable.

How

State the shape explicitly: 'Return JSON: { subject, body, cta }' or 'Use a markdown table with columns X, Y, Z.' Include length limits where relevant.

Try it

Add an explicit output format to this prompt. Aim for 75+.

71structure

Target: 75. Keep working the prompt — the score moves as you type.

  • Constraints: State limits and do/don't rules, e.g. "Keep it under 200 words. Do not invent APIs."
  • Output format: Specify the exact shape, e.g. "Return JSON: { title, steps[] }" or "Use a markdown table.".
  • Examples (few-shot): Add one input→output example to anchor tone, format, and edge handling.