Day 10, R$6,602.25 billed since the last stream (it was R$2,188 the previous Tuesday), and the day's goal had a name: "the deliverability chip." It wasn't enough to have a feature ready in the code — there needed to be a complete path, from someone landing on a page to swiping a card and having their account running on its own at 3am, every day, updating the Active Campaign base.
The product under construction is Email Hacker AI, explicitly presented as a vertical agent (the Y Combinator thesis) rather than a SaaS: instead of selling a tool an email marketing manager has to operate, the agent sends email, builds funnels, monitors deliverability, designs creatives, and attributes sales on its own. The day's commercial hook was raw: people paying to email dead lists, emails that never get opened and that burn the whole domain on Gmail.
The landing page and sales-funnel build used a set of skills called "Advertis Skills," orchestrated by a "full funnel" skill that pulled step by step: avatar extraction, ad-angle multiplier, headline matrix, offer extraction, unique-mechanism builder, objection crusher, audience awareness level, and performance diagnosis. That produced seven different ad angles, all circling the same pain (dropping open rate, dirty list, bad Active Campaign server), with A/B tests planned from the start.
The work was parallelized across four terminals — meta ads, onboarding, worker, and payment — with explicit cost discipline: bigger analyses ran in a swarm using Haiku and Sonnet instead of Opus, because each Opus session would cost too much against the already-tight monthly budget. The payment integration got wired up with Guru (webhook, API token stored in secrets), with recurring billing by contact volume — starting at R$97/month — and the decision to only charge the card after the person had already seen the free diagnostic report.
The landing page went through several rounds of live critique (bad contrast, confusing layout, LCP load time, animations repeating for no reason) until it was presentable. In the end, the new creatives went up, the campaign was created inside Facebook Ads — and right in the middle of celebrating that it all worked, the Meta account itself showed up blocked, ending the stream on an unresolved point of tension.