Codex CLI 0.167.0 Improves Agent Monitoring and Terminal Review

OpenAI's Codex CLI version 0.167.0 was released on November 6 with several changes to the developer's terminal workflow. The official release notes focus on the experience of managing agent sessions and reviewing results, rather than on a new model or a guaranteed increase in code correctness. For game developers supervising coding assistants across large repositories, that is a meaningful distinction.

The release introduces a way to open the agent command center with codex agents --no-daemon. The command center and session picker now highlight unread results, potentially reducing the chance that a completed task goes unnoticed while a developer works on a different system. Developers can also switch between connected backends in the terminal session picker while retaining drafts, according to the official changelog.

Image-handling changes are also part of this release. Supported terminals can preview local image attachments during composition, and transcript paths to viewed local images can be opened. In a game project, such attachments might be error screenshots, asset reference sheets or UI comparisons. Images provide useful context to a coding agent, but they are not equivalent to giving it reliable live control of a game viewport.

Other changes include more visible patch details while an approval prompt is open, optional system proxy integration on macOS and Windows, and several fixes affecting saved chats, network approvals and chat history. Approval visibility matters when an agent proposes modifications to build scripts, project files or tools that reach beyond its immediate sandbox. No changelog item guarantees that a generated change is safe without review.

A practical experiment would create three independent tasks in a test repository: a Unity C# gameplay fix, a small Unreal C++ utility and an automated test update. Run the tasks through supported agent sessions, then check whether unread markers and transcript navigation make it easier to inspect differences and avoid merging unreviewed results. Measure review time rather than assuming the new controls make the code execute faster.

This is an official Codex CLI release, not an Unreal MCP or Unity MCP update. Game-engine integration still depends on the tools and permissions exposed to the agent, and changes should be tested inside copies of projects. The immediate benefit is more manageable supervision of coding work, particularly when several tasks proceed in parallel.