Author
Roger Yang
Recent posts
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Agent EvaluationArize Phoenix has a built-in MCP server that lets your agents query traces with SQL
Read-only SQL and code mode let coding agents answer questions across your traces without paging thousands of spans through model context. Nancy Chauhan Roger Yang Mora Vigo Malusardi August 27, 2026 10 min read -
Agent EngineeringMeet PXI: the AI engineering agent inside Phoenix
An AI engineering agent built into Phoenix. It works like a coding agent, just point it at your telemetry instead of a source tree. Mikyo King Roger Yang Nancy Chauhan Anthony Powell June 18, 2026 17 min read -
AI EngineeringWhat Is AUC?
In the latest edition of “The Slice,” a blog series from Arize that explains the essence of ML concepts in a digestible question-and-answer format, we dive into how… Roger Yang January 19, 2022 6 min read
Don’t ship vibes.
Arize gives AI teams observability and evals to understand and improve agent performance.
