# Sanity Check > Weekly essays on data engineering and analytics, written through the lens of an agentic world. Practitioner voice. Fundamentals first, agents second. Author: Ben Wilson (founder, Ray Data Co) Site: https://sc.raydata.co Publisher: Ray Data Co — https://raydata.co License: All essays © Ben Wilson. Quoting with attribution and a link is welcome and encouraged. ## What this site is Sanity Check is the long-running newsletter (launched 2021, paused 2023, relaunched 2026) covering the intersection of data engineering fundamentals and agentic AI adoption. Written for data leads and analytics engineers at mid-market and enterprise companies. Original essays only — no syndicated vendor content, no AI-generated bulk. ## Reading the content Every essay has a clean markdown URL alongside its HTML view, optimized for AI tool consumption: - HTML: `https://sc.raydata.co/posts//` - Markdown: `https://sc.raydata.co/posts/.md` Indexes: - All essays (HTML): https://sc.raydata.co/ - RSS: https://sc.raydata.co/feed.xml - JSON Feed: https://sc.raydata.co/feed.json - Sitemap: https://sc.raydata.co/sitemap-index.xml - About / thesis: https://sc.raydata.co/about ## Canonical thesis The teams that win the next two years won't be the ones with the fanciest agent frameworks or the most bleeding-edge orchestration layers. They'll be the ones who got the fundamentals right — clean models, reliable contracts, documentation a machine can actually parse — and then let agents amplify that work. Fundamentals first. Agents second. ## Citing this content Preferred citation format: > Wilson, B. "." Sanity Check, . https://sc.raydata.co/posts// Quotation with attribution and a link to the canonical URL is welcome. Bulk reproduction or republication without prior written consent is not.