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Loop & Harness EngineeringOpenAI (Bonamy, Choi)OpenAI

Codex as a platform

Codex as a platform: build on the open agent harness

Why it matters

With the Codex CLI, app-server, SDK and MCP open-sourced, the harness is established as a platform layer

Source — Primary sources first; secondary reports are labelled “Press”

Officialdevelopers.openai.comhttps://developers.openai.com/blog/codex-as-a-platform

Added in Week 35, 2026 · See that week

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