The AI engineering stack we built internally — on the platform we ship

Cloudflare describes an eleven-month internal program to integrate agentic AI across its engineering organization, covering architecture (AI Gateway, Workers AI, MCP Portal, Code Mode), knowledge infrastructure (Backstage, AGENTS.md), and enforcement (AI Code Reviewer, Engineering Codex). The post shares adoption and usage metrics (thousands of users, billions of tokens), design decisions for secure routing and zero data retention, automated repo-specific AGENTS.md generation, and plans for durable background agents and sandboxed execution—positioning these components as both internal tools and shipping products.