What it does

Myriad is a free tool on the NamePepper site that builds text prompts for AI chat assistants. It outputs a prompt that you copy into ChatGPT, Copilot, Gemini, Claude or Llama, assembled from the rules you choose. It offers three tasks: write new content, rewrite existing content, and analyze a page or text, such as a competitor's. The site describes 35+ rules and 150+ instructions covering things like tone, style, audience, SEO keywords and use case. You can add your own rules and give a rule priority by ending its label with an exclamation mark. A separate follow-up prompt asks the AI to explain how its writing met each rule and to flag rules that conflicted. The site says it was tested most with ChatGPT Plus and offers tips such as using fewer rules per prompt and checking for conflicts. Examples on the page show prompts and the responses ChatGPT 4 gave.

Capabilities

Write, rewrite and analyze modes
35+ selectable rules and 150+ instructions
Custom rules, with priority marking for important ones
Follow-up prompt that checks the AI followed the rules and surfaces conflicts
Prompts aimed at ChatGPT, with notes on using Copilot, Gemini, Claude and Llama

When to use it

You write ads, articles, emails or social posts with a chat AI and want repeatable prompts
You want to check whether an AI followed each of your instructions
You want to analyze a competitor's content and reuse the findings for your own writing