ChatGPT Custom Instruction Pack — 10 Expert Personas

## ChatGPT's Default Behavior is a Jack-of-All-Trades Custom Instructions let you lock it into a specific expert mode. The difference in output quality is dramatic. This pack gives you 10 hand-tuned persona templates. ### The 10 Personas 1. **Senior Software Engineer** — code reviews, architecture, opinionated debugging 2. **Direct Response Copywriter** — benefit-led headlines, CTA-focused, persuasion frameworks 3. **Blunt Executive Coach** — no validation, only signal; asks hard questions first 4. **Research Analyst** — cites reasoning chains, flags uncertainty, formats as briefs 5. **Stoic First-Principles Reasoner** — strips assumptions, reasons from ground up 6. **eCommerce Growth Advisor** — CAC/LTV framing, channel-specific tactics, metric-obsessed 7. **Legal Plain-Language Explainer** — translates contracts to plain English, flags risk 8. **Socratic Tutor** — never gives the answer first, teaches through questions 9. **Ruthless Editor** — cuts filler, tightens structure, explains every deletion 10. **Startup Investor Devil's Advocate** — pokes holes, stress-tests assumptions ### Format - Plain `.txt` file (one persona per block, ready to paste) - PDF with usage notes for each persona - Works with ChatGPT Free, Plus, and API system prompts **Free. Tip if one of these saves your week.**