[▲ Vercel Community](/) · [Categories](/categories) · [Latest](/latest) · [Top](/top) · [Live](/live) [Showcase](/c/showcase/41) # AI content repurposing agent powered by Vercel's AI SDK & AI Gateway 49 views · 1 like · 1 post Raj (@rajoninternet) · 2026-01-25 · ♥ 1 I recently shipped Casto, an AI content repurposing agent powered by Vercel's AI SDK & AI Gateway Template : [https://v0.link/GNI3Yhn](https://t.co/JqNxwVljuF)  The problem it solves: Content creators spend hours adapting their content for different platforms. Each platform has unique requirements - character limits, tone, formatting, audience expectations. The solution: Casto takes your blog content and automatically generates platform-optimized versions for X, LinkedIn, newsletters, and Reddit. But here's what makes it different from other AI tools: It's not just a prompt wrapper. It runs a genuine 4-step agentic workflow: 1. ANALYZE - Understands your content's intent, tone, and target audience 2. WRITE - Generates platform-specific content following best practices 3. EVALUATE - Automatically checks quality and identifies improvements 4. REFINE - Polishes the content based on evaluation feedback You can watch the AI "think" in real-time through the chain-of-thought visualization. Tech Stack: - Built entirely with v0 by Vercel - Vercel AI SDK for the agentic pipeline - Supabase for authentication and database - Next.js 15 with App Router - X API integration for engagement tracking The entire project - from UI to backend to database - was built in v0's canvas environment. Clean base, easy to extend, meant for experimenting with agent-first flows. Use it as-is or build on top of it.