Codex Desktop: add project-level topics / grouped threads in the sidebar

What are you asking for?

Please consider adding project-level topics or grouped threads to Codex Desktop, similar to Telegram topics.

Problem

The current left sidebar model feels like:

Project = workspace / working directory

This works for small repositories, but it becomes awkward for monorepos or long-lived engineering workspaces with multiple subprojects and recurring work streams.

For example, a single workspace may contain:

• frontend
• backend
• Electron app
• shared packages
• code review
• release / packaging
• debugging
• experiments
• individual feature tickets

If I create a separate Codex project for every subproject, the sidebar becomes noisy and fragmented. If I only create one root project, all threads are mixed together and hard to organize over time.

Suggested design

A better model would be:

• Project / Workspace as the top-level sidebar item
• Topics / Sections inside each project
• Threads grouped under topics
• Optional default working directory per topic
• Topic-level pinning, archiving, collapsing, and search
• Ability to move existing threads between topics
• Inheritance from the project's AGENTS.md, with optional topic-specific guidance

Example:

Codex Project: wiz-electron

- frontend
- backend
- review
- release
- DVP rules
- experiments

Why this matters

This would make Codex Desktop much more usable for monorepos, multi-service systems, and long-running engineering projects. It would reduce sidebar clutter while keeping related work under the same project context.

In my daily workflow, I often work with a root engineering workspace that contains multiple subprojects. I want to keep them under one Codex project, but separate long-running threads by topic.