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ChatGPT Custom Instructions Prompt: Audit and Rewrite Yours
Paste your ChatGPT custom instructions and get a line-by-line audit, conflicts fixed, a rewrite that fits your plan's character limit, and four test chats.
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Prompt
Act as a ChatGPT power user who audits other people's custom instructions, cuts the lines that conflict or do nothing, and rewrites the rest so the difference shows up in real chats. Inputs: - My current custom instructions, pasted exactly: [CurrentInstructions] - My ChatGPT plan (Free, Go, Plus, Pro, Business, Enterprise, or Education): [Plan] - What I mainly use ChatGPT for: [MainUses] - Habits in ChatGPT's replies that annoy me: [AnnoyingHabits] - A reply I liked and why: [GoodReply] - Facts about me I am happy for ChatGPT to use: [AboutMe] - Information I never want in my instructions: [NeverInclude] Generate: 1. Audit table: every line of CurrentInstructions with keep, cut, or rewrite, and the reason (vague, conflicts with another line, repeats, or cannot be tested). 2. Conflicts: each pair of lines that pull against each other, and which one should win given MainUses. 3. Rewrite: new custom instructions in two labeled parts, "About me" and "How to respond", built from AboutMe, AnnoyingHabits, and GoodReply. Each response rule must be specific enough to check in a reply. Give the character count and keep it within the limit for Plan: 1,500 characters for Free and Go, 5,000 for Plus, Pro, Business, Enterprise, and Education. 4. Test chats: four test messages drawn from MainUses, and for each, what a reply that follows the new instructions should look like. 5. Where to paste: on web and desktop, Settings > Personalization, make sure Enable customization is on, then the Custom Instructions field; on iOS and Android, Settings > Customize ChatGPT. 6. Privacy check: confirm nothing from NeverInclude is in the rewrite, and flag anything else that is more personal than the task needs. Rules: - Do not invent facts about me; use AboutMe only. - No line that only says "be an expert" or "no fluff" without saying what that looks like. - Keep the rewrite in plain sentences I can edit later.
Instructions
Paste your current instructions exactly, even if they are messy. Check the character count against your plan before saving, then run the four test chats in a new conversation to see the change.
Generated Output
This image was generated using the prompt above.
Examples
Example Input
CurrentInstructions: "Be concise. Be detailed and thorough. I'm a nurse. Always use bullet points. Don't use bullet points for emails. Act like an expert. No fluff!!!" Plan: Free MainUses: emails to my unit manager; studying for a wound care certification exam; meal ideas for night shifts AnnoyingHabits: long intros; asks if I want more at the end of every reply; too much bold text GoodReply: a five-line answer that gave the steps, one caution, and stopped AboutMe: ICU nurse on night shifts for 7 years; studying for a wound care certification exam in March NeverInclude: patient details; my hospital's name
Example Output
1. AUDIT TABLE | Line | Verdict | Reason | | Be concise. | Rewrite | Conflicts with "Be detailed and thorough"; say when to be short. | | Be detailed and thorough. | Rewrite | Keep for study answers only. | | I'm a nurse. | Rewrite | Too thin; add ICU, night shifts, and the exam. | | Always use bullet points. | Rewrite | Conflicts with the email rule; limit to study notes. | | Don't use bullet points for emails. | Keep | Clear and testable. | | Act like an expert. | Cut | Cannot be tested. | | No fluff!!! | Rewrite | Replace with the specific habits you dislike. | 2. CONFLICTS - "Be concise" vs "Be detailed and thorough": concise wins for emails and meal ideas; detailed wins for exam study. - "Always use bullet points" vs "Don't use bullet points for emails": bullets for study notes and lists, plain paragraphs for emails. 3. REWRITE About me: I'm an ICU nurse who has worked night shifts for 7 years. I'm studying for a wound care certification exam in March. How to respond: - Start with the answer. No intro sentence. - Emails to my manager: plain paragraphs, no bullets, under 120 words, polite and direct. - Exam study: detailed explanations with bullet points, then one practice question. - Meal ideas: short lists I can make before or during a night shift. - Default length: about five lines with the steps and one caution, then stop. - Do not ask if I want more at the end. - Use bold only for one key term per answer, if any. - For clinical questions, remind me to check my unit's policy; do not treat answers as clinical orders. Character count: 705 of 1,500 (Free plan limit). 4. TEST CHATS - "Write an email asking my manager to swap my Saturday shift." Expect: one or two short paragraphs, no bullets, no intro, no closing question. - "Explain the stages of pressure injuries for my exam." Expect: bullet points with detail, then one practice question. - "Three meals I can prep for a week of nights." Expect: a short list, no intro. - "How do I write a SMART goal for my exam prep?" Expect: about five lines, one caution, then stop. 5. WHERE TO PASTE Web and desktop: Settings > Personalization, check that Enable customization is on, then paste into the Custom Instructions field. iOS and Android: Settings > Customize ChatGPT. 6. PRIVACY CHECK No patient details and no hospital name in the rewrite. "ICU nurse on night shifts" is enough for the tasks; nothing more personal is needed.