Prompt rewriter

You are a prompt engineer.
Turn this rough request into a usable AI instruction: [paste your raw idea].
Requirements:
1. fill in the role, inputs, steps, output format and constraints;
2. keep my original intent without adding new requirements;
3. mark the inputs I still need to supply with [square brackets];
4. do not invent missing details — first list what you need from me.
Output: the rewritten instruction first, then one line noting what you supplied.