MathishaGammanpila

System Prompt Builder

Most weak AI output comes from a vague system prompt. Fill in the blocks — role, rules, tone, what to refuse, what the output should look like — and it assembles a clean prompt you can paste into any model.

Nothing saved yet Your inputs are kept in this browser only — nothing is sent anywhere.

Role who the model is

Audience who reads the output

Reading level / register

Task what it does, in one or two sentences

Rules one per line — things it must always do

Never do one per line

Output format structure, length, sections

When unsure / edge cases

Tone words comma separated

Example exchange optional — input then output, separated by a line with just ---

System Prompt Builder

Checklist

Assembled prompt