A 4-minute read for engineering leads: why a passing run can still ship a wrong answer, and the check that caught all 3 cases in our small local test.
A software platform team was shipping LLM features under a test suite that asserted on exact output strings; after three post-deployment incidents within two quarters — a changed m…
A financial-services client was running a multi-stage RAG pipeline with fixed-size chunking, single-pass vector retrieval, and no reranking; per-query cost was $0.47 and accuracy o…
A team blindly chose the top model from public leaderboards and watched latency, cost, and quality collapse in production. This article lays out a framework for enterprise-specific…
Prompt tweaks in production quietly degraded a regulated workflow because there was no evaluation harness. This article reframes prompts as versioned, testable system components an…
Running 1,400 synthetic eval cases on my already-shipped intake bot surfaced 14 critical defects—including one routing chest pain to 'next available appointment'—for just $4.20.
Teams that write evaluations before writing prompts ship fewer production incidents and catch regressions 11x faster — the discipline is eval-driven development, and the gap betwee…
Every major agent framework markets itself as 'reasoning-first,' but under the abstraction layers they are finite state machines — and designing explicitly for that reality produce…
