Every chapter names its sources and its numbers — at least one primary source (Klaviyo, Customer.io, Red Sift, Troutman Pepper Locke, the Texas AG settlement, Virginia SB 1339, Google Postmaster Tools) and at least one hard number. Written to be acted on, not nodded at.
Why 2026 is the inflection point. Autonomous campaigns + Customer Agent + MCP + Klaviyo Personalized Send Time as evidence of the platform admitting the future.
Segmenter → Writer → Sender → Optimizer. JSON contract handoffs. The 4 human-in-the-loop checkpoints that prevent silent failure.
Apple Mail replaces your preheader with an AI summary, and Gmail summarizes threads after they're opened. Open rate broke. What to measure instead - and why BIMI is the highest-ROI deliverability move.
TX SB 140 (Sept 1, 2025) + AG settlement. VA SB 1339 (Jan 1, 2026) 10-year STOP retention. T-Mobile's real-time sample-match filtering. The kill-switch policy.
Klaviyo's 500+180-day eligibility vs the 1,500-customer trust floor. The 3 failure modes. The CLV-cohort alternative for early stages.
The 7 most common post-migration failure modes. The 30/60/90 day remediation plan. Why the first BFCM post-migration is a controlled rebuild, not a velocity sprint.
The 6 governance layers. The 6 auto-kill triggers. The 'human-of-record' policy. Why brands that win 2026–2027 look light on AI adoption and heavy on AI governance.
“The 5-agent decision map in Chapter 3 ended a 6-week internal debate about what to automate vs what to keep human. I screenshotted it to the team and we moved on.”
“Read it on a Friday. Wrote the CLAUDE.md from the template on Saturday. Caught Claude hallucinating 38 negative keywords on Monday - exactly the failure mode Chapter 7 warned about.”
“The Threads arbitrage chapter alone justified the 30 minutes. Moved 12% of Meta spend over, CPMs landed 34% lower than IG. The window's real.”
“I've bought $500 courses with less source-citation than this playbook. The Tinuiti + CTC + Motion benchmarks in one document - that's the artifact I've been hunting.”
“Sent this to my entire team. The 4-agent CRM architecture is now the reference doc for how we structure every Klaviyo build going forward.”
“Chapter 4 on the AI Max migration is the chapter I'd pay for. We started the 30-day hardening sequence in March. April CPA drift was 7%. The unhardened account next to ours: 29%.”