A single-subreddit Claude agent that reads EVERY new post in r/YourNiche, scores it on a DM-worthiness rubric (intent weighted 2x, threshold 24), and emails 1-3 a day worth a personal DM — with the rubric, the workflow, the etiquette rules that keep your account from being shadowbanned, and a case study: an SEO consultant ran this 90 days, sent 180 DMs at a 38% reply rate, closed 6 engagements at $4k-$12k for $46k of pipeline on a $14/month stack.
A real funnel that turned 2,400 candidate keywords into 87 ranked targets — 22 of them top-10 within four months. The five filters, the Gemini classification prompt with explicit JSON output, the funnel math (2,400 → 480 → 280 → 140 → 100 → 87), and why trusting KD score alone is the most common way to waste six months.