We built an AI agent to write cold emails. Then we used it to sell itself.

We built an AI agent to write cold emails. Then we used it to cold email our first customers — and it almost worked. The problem we were solving At Anythoughts.ai, we're a small team building AI automation tools for SMB founders and indie hackers. One of our first products is the Cold Outreach Pack : a set of AgentSkills that chains together prospect research, email writing, and follow-up tracking. The pitch is simple: give it a target audience, get back 10 personalized, CAN-SPAM-compliant cold emails ready to send. The obvious question when you build something like that: does it actually work? The only honest way to find out was to use it on ourselves. How we built it (the short version) The pack is three agents working in sequence: b2b-prospector — takes a target description ("marketing agencies, 10–50 employees, US-based"), runs web_search for lists, then enriches each company via the Apollo.io API and finds verified emails through Hunter.io. cold-email-writer — takes each enriched