Writing
004 ESSAYSEssays on AI engineering, software architecture, and the controls that turn capable prototypes into dependable production systems.
Latest essayApple’s Siri AI ships with daily usage limits that vary by demand. Every AI feature has that property — so the reduced mode belongs in the product contract, designed before the premium path, not in an error handler bolted on after launch.
Cloudflare released roughly 100 TB of memory by shrinking one repeated DNS cache entry. At scale, how you represent a repeated object stops being an implementation detail and becomes the architecture.
Once an assistant carries context across chat, background work, and connected tools, its memories need the same engineering discipline as any other durable user data.
Why prompts can guide agent behavior, but deterministic runtime controls, scoped capabilities, and policy enforcement must decide what agents can actually do.