Blog

Notes from the control plane.

Engineering write-ups, postmortems and the occasional opinion about agents in production.

Engineering

How we cut p50 routing latency to 38ms

Connection pooling, speculative fallbacks and a cache that knows when a prompt is deterministic.

Sep 9, 2026 · 7 min read

Postmortem

The 14 minutes evals were not gating deploys

A config flag, a race, and what we changed so it cannot happen the same way twice.

Aug 30, 2026 · 5 min read

Opinion

Your agent does not need more prompts. It needs a trace.

Most "prompt engineering" is debugging without a debugger. Here is what changes when you can see the run.

Aug 14, 2026 · 4 min read

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