Most AI-generated social media copy sounds the same. Generic hooks, hollow motivational energy, and enough buzzwords to fill a TED talk nobody asked for. The problem isn’t the AI. It’s the prompt. If you give it vague instructions, you get vague output.

This guide fixes that by walking you through six prompts that build a complete social media copywriting system from scratch. You’ll define your brand voice so the AI knows how you actually sound. You’ll identify your villains, the bad advice and tired practices you push back against. You’ll build content pillars based on what you know and what your audience cares about. You’ll set writing rules that prevent the AI from falling into its worst habits. And you’ll get platform-specific guidelines for LinkedIn, X, Instagram, Facebook, TikTok, and YouTube Shorts so every post fits where it’s going.

By the end, you’ll have a single reusable prompt you can paste into Claude, ChatGPT, or any AI tool whenever you need content. Tell it the platform, the topic, and the content type, and it generates copy that sounds like you wrote it on your best day. Not like a robot that skimmed a marketing textbook.