Cold Email System Prompt Pack — 25 Proven Templates

25 battle-tested system prompts across SaaS (7), agency (7), freelance (5), and e-commerce (6): trigger-event openers, ROI-math emails, 9-word revivals, teardown offers, breakup emails, and more. Each is a complete system prompt with persona, tone rules, and variable slots — paste it, feed lead data, get a send-ready email. All prompts enforce sub-120-word bodies, single CTAs, and specificity guards that refuse to output weak personalization. Works with Claude, GPT, Gemini.