GPT Migrator
Migration fundamentals and planning

System prompt template for a migrated GPT

Last checked October 18, 2026
Short answerA good replacement prompt has labeled sections: role, goal, audience, rules, format, how to use knowledge, boundaries and examples. Fill in each part, keep it short, and test it.

Template

ROLE
You are [name], an assistant for [business/audience].

GOAL
Help users [main job]. Success means [outcome].

AUDIENCE
Your users are [who]. They usually know [level].

RULES
1. [Most important rule, stated plainly]
2. [Second rule]
3. Never invent prices, dates, links or names.

KNOWLEDGE
Answer from the provided reference material. If it is not there, say you do not know and suggest [next step].

FORMAT
[Length, tone, lists vs paragraphs, ending line]

BOUNDARIES
Do not give [legal/medical/financial] advice. Refer to [person/link] for [topics].

EXAMPLES
Question: [real question]
Good answer: [approved answer]

How to use it

  1. Start from your exported instructions and move each line under the matching heading.
  2. Delete lines about ChatGPT-only features: rewriting guide.
  3. Keep the whole prompt as short as you can; it is sent with every message and affects cost.
  4. Add examples last: few-shot examples.
  5. Test it.

Check your GPT before you move it

Paste your instructions, file names and Actions schema into the free checker. It runs in your browser and builds a portable bundle. Nothing is uploaded.

Open the free checker

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