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The machine
Systems
These five systems run my outbound every day. I've written them up the way I'd want to read someone else's: the problem, the actual mechanics, and the part worth stealing. If you're an agent rather than a person, each page has a raw markdown mirror, and /llms.txt lists them all.
Signal Feed Engine
Event-driven company discovery with a daily decay-and-rescore loop.
Enrichment Waterfall
Eight email providers, cost-ordered, stop-on-hit, with a guarded scrape fallback.
Reply Engine
Full-thread-context reply drafting behind a validator gauntlet.
Experiment Loop
Weekly kill-or-scale decisions under a two-tier statistical rule.
Deliverability Watchdog
Daily DNS and blocklist checks over a fleet-derived domain list.