Run a cold email SDR team in Claude Code with model review and human approval

The founder posting as AI_Bhaiiii on X built an outbound team inside Claude Code. Each day three Sonnet agents take 15 leads apiece, study the brand's website and its ads in the Meta Ads Library, spot a weakness or opening and write a tailored cold email. An Opus agent reviews every draft, and nothing joins the campaign until the founder approves it. Every six hours another agent checks replies, and if a prospect asks for samples it generates them through the founder's website MCP and drafts an answer for approval. At 30 emails a day across 6 inboxes, with 5,400 brands queued, they report a 7.45% reply rate and 4.5% positive replies.