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Writer

Charlie Guo

Developer experience engineer, OpenAI; Artificial Ignorance

Codex & OpenAI agents

Writes the Artificial Ignorance newsletter and works on developer experience at OpenAI. His X article "The Emerging Harness Engineering Playbook" was widely shared.

XLinkedInWebsite

Sources

  1. ignorance.ai/about
  2. ai.engineer/speakers/charlie-guo
  3. x.com/charlierguo/status/2026009225663750512

Verified Oct 29, 2026