Author
Sara Verdi
Recent posts
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Agent EngineeringHow Coinbase Wallet built an agent-first product development lifecycle
By redesigning planning, validation, and risk review around AI agents, Coinbase Wallet dramatically shortened the path from product idea to working software. Sara Verdi September 2, 2026 7 min read -
Agent EngineeringWhy better models don’t fix every agent failure: Lessons from OpenAI
In this installment of Rise of the AI Engineer, Stuart Sy from OpenAI, explains why the bottleneck has moved off the model and onto context, evals, and observability. Sara Verdi August 25, 2026 9 min read -
Agent EngineeringHow Uber evaluates AI agents at production scale
A background comment about pizza exposed a failure that Uber’s offline evaluations had missed. The incident helped reveal what production AI agent evaluation actually requires: automatic tracing, living… Sara Verdi August 14, 2026 14 min read -
Agent EngineeringEvaluation-driven development: How to move AI agents from pilot to production
Learn how evaluation-driven development, agent harnesses, AI observability, guardrails, and cost-per-outcome metrics move AI agents from pilot to production. Sara Verdi August 13, 2026 19 min read -
AI EngineeringAI agent observability: Why production systems need a reasoning layer
Traditional APM can collect every span and still leave developers guessing about intent, causality, and drift. As agents multiply, the observability stack must learn to interpret the systems… Sara Verdi August 6, 2026 10 min read -
Agent EngineeringHamel Husain explains why AI evals fail before the evaluation begins
Hamel Husain explains why ambiguous inputs, generic metrics, and disconnected review workflows can make AI evaluations misleading, and how developers can build a better process around real production… Sara Verdi July 30, 2026 7 min read -
Agent EngineeringTips from Anthropic on building agent evals you can trust
Learn how to build trustworthy AI agent evals using regression tests, capability evals, production traces, LLM judges, and reproducible environments. Sara Verdi July 28, 2026 17 min read -
AgentsHow OpenAI uses human feedback to evaluate and improve LLMs
At ChatGPT scale, user frustration arrives as support tickets, ratings, social posts, and corrections buried inside conversations. OpenAI built a feedback system that can find the pattern behind… Sara Verdi July 21, 2026 13 min read -
Agent EngineeringInside Cursor’s agent factory: how it verifies AI-written code
As background agents take on more implementation work, Cursor is rebuilding the software development lifecycle around risk scores, developer-like environments, video evidence, and review systems that learn from… Sara Verdi July 20, 2026 10 min read -
Agent EngineeringFrom human-operated agent development to systematic agent improvement
At Observe 2026, Jason Lopatecki and Aparna Dhinakaran described the shift from human-operated agent development to systematic agent improvement—and what builders should change in their stacks first. Sara Verdi July 14, 2026 10 min read
Don’t ship vibes.
Arize gives AI teams observability and evals to understand and improve agent performance.
