OpenAI Open-Sources the Codex Agent Harness: Architecture, SDKs, App-Server, and What Developers Can Build
OpenAI Open-Sources the Codex Agent Harness: What the August 2026 Release Means for Production AI Software Agents OpenAI has open-sourced the agent harness behind Codex, a significant move that shifts the conversation around AI coding tools from autocomplete and chat interfaces toward durable, operational software agents. Announced in August 2026,…
