Claude Code for Cold Email: Skills, List Building, and Autonomous Campaign Research

This session walks through four production use cases of Claude Code inside a cold email agency sending eight million emails per month. You will see how Skills files replace repetitive SOP training, how voice commands drive API-connected list builds through Prospeo, how Sonnet sub-agents perform ICP classification at no extra token cost, and how an autonomous research loop continuously rewrites copy and adjusts list filters based on live campaign results. The session is grounded in real agency workflows and requires no prior coding experience to follow or replicate.

Learning objectives

• Understand how Claude Code differs from browser-based chatbots by accessing local files and making live API calls
• Set up and use Skills files to encode repeatable lead generation SOPs that persist across sessions
• Build and enrich a prospect list using voice commands and a Prospeo API skill without manually configuring filters
• Use Sonnet sub-agents inside Claude Code to classify ICP fit and write personalized lines without incurring separate API costs
• Configure an auto-research repository to run autonomous campaign experiments and learn from reply-rate outcomes over time

Key takeaways

• Claude Code breaks the chatbot sandbox by connecting to local files, databases, and external APIs directly
• Skills files let teams share and reuse complex workflows without retraining the model each session
• Voice-driven list building via WhisperFlow and a Prospeo skill can produce an enriched, filtered CSV in minutes
• Sonnet sub-agents handle ICP filtering and personalization inside the Claude Code plan, eliminating extra OpenAI API spend
• The auto-research loop pulls campaign results, reads a context file, adjusts copy and list filters, and relaunches sends completely autonomously
• Dedicating even ten percent of send volume to auto-research experiments can produce results that outperform human-written campaigns
• No coding background is required to install or operate Claude Code for outbound lead generation workflows