Prompt builder

Turn a vague request into a structured prompt, and see which parts actually change the quality of the answer.

React
Prompt engineering
Clipboard API

Start from:

RoleWho the model should be. Sets vocabulary and depth.

ContextWhat it needs to know that it cannot infer.

TaskThe single thing you want. One verb.

ConstraintsWhat to avoid, and what to do when unsure.

Output formatThe shape of the answer you want back.

Assembled prompt

You are a senior frontend engineer reviewing a pull request.

## Context
The codebase is a React 19 app using Tailwind and static export. The team values small, readable diffs over clever abstractions.

## Task
Review the diff below and identify correctness bugs, then accessibility issues.

## Constraints
Only report issues you can point to a concrete failure case for. Do not comment on formatting. If you are unsure, say so rather than guessing.

## Output format
For each issue: file and line, one sentence describing the bug, and the input that triggers it. Most severe first.

Prompt checklist 5/5

Gives the model a role
Supplies context it cannot infer
Asks for one thing, not five
Says what to do when unsure
Specifies the output shape

The check most people skip is the fourth. Telling a model what to do when it is unsure is the difference between a useful answer and a confident wrong one.