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OpenAI · Status at source date: Newsletter archive

OpenAI publishes Codex CLI agent loop documentation

Written by Paid Media Collective
IN BRIEF

OpenAI has published technical documentation on the Codex CLI agent loop, their local, cross-platform agent for making code changes. The documentation covers how Codex builds and manages context, queries models, and applies patterns useful for anyone building agents on the Responses API.

Original newsletter image: OpenAI publishes Codex CLI agent loop documentation
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What changed

The agent loop is the orchestration layer that coordinates user input, the model, and the tools that execute work.

THE COLLECTIVE PERSPECTIVE

Why it matters for advertisers

For you, this means insights into building reliable software agents that could inform marketing automation and tool development.

Perspective from the original PMC newsletter.

Sources & contributor credit

  1. Newsletter coverage · Paid Media Collective newsletter

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Attribution evidence and limitations

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Published on this site

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Original newsletter text and archive evidence

OpenAI publishes Codex CLI agent loop documentation

OpenAI has published technical documentation on the Codex CLI agent loop, their local, cross-platform agent for making code changes. The documentation covers how Codex builds and manages context, queries models, and applies patterns useful for anyone building agents on the Responses API. The agent loop is the orchestration layer that coordinates user input, the model, and the tools that execute work. For you, this means insights into building reliable software agents that could inform marketing automation and tool development.

Source captured . No explicit first-contributor label was provided for this update.

Newsletter coverage (1)📰 🦸‍♂️ Paid Media News (Week 4) 🦸♀️ · 26 Jan 2026