The Loop Closed Inside the Wall
Snowflake shipped a governed agentic loop between the warehouse and Meta — Conversions API out, campaign context back, an agent that prepares and a human who approves.
Verdict: The thesis confirmed — bounded autonomy on governed data, human gate — but shipped inside one walled garden: identity-only, org-side governance, no holdouts, no standard.
The receipts — 6 dated calls
- Apr 14, 2025 MCP. A2A. OMG. The New ABCs of Advertising AI — MCP is the substrate for agent-to-ad-platform integration.
- Dec 1, 2025 Part 4: Why Your Campaign Reports Are Already Obsolete — Campaign reporting dies, replaced by live diagnosis with human-in-the-loop resolution.
- Jun 7, 2026 Signal Containerization: The Next Abstraction Layer for Agentic Advertising — The failure mode of this transition is private plumbing first, standards later.
- Jun 19, 2026 The Composable CDP: How Customer Data Stopped Moving — The governance you built for the profile becomes the governance you need for the agent.
- Jul 3, 2026 What Agents Can't Manufacture — An agent's value is gated on whether its output is permitted to act unreviewed.
- Jul 13, 2026 CDP vs. Reverse ETL Is the Wrong Question — The warehouse is already the source of truth; agents becoming its primary readers makes warehouse-native governance decisive.
The honest ledger
- "Expect to engineer the seam yourself; nobody sells it clean" lasted eight days — Snowflake now sells that seam, and disintermediates the standalone reverse-ETL vehicle the essay treated as durable.
- The suite-versus-pipe dichotomy failed to price the third option: the warehouse vendor itself becoming the suite.