Blog

What happens inside the gateway

Engineering notes on the policy engine, routing and guardrails. Not product announcements; the reasoning behind decisions we made, and the walls we hit along the way.

Architecture

Why prompt hydration runs before policy

PII arrives inside the variables, not inside the template. That single observation fixes the entire stage ordering in the gateway.

August 5, 20262 min read

Latest posts

Compliance

Failover is a hole in the compliance path

A fallback chain normally buys you resilience. While a residency rule is in force it does the opposite — and it does it silently.

July 28, 20263 min read

Engineering

Moving the policy decision out of code

When model selection, redaction and refusal logic is spread through application code, two things break together. What changes when the decision lives in one place.

July 14, 20263 min read