Feature Request: Non-interactive session listing

What feature would you like to see?

Feature Request: Non-interactive session listing

codex resume already provides an interactive TUI to list and select existing sessions.
codex exec resume is non-interactive and only resumes a session when an explicit identifier is provided (e.g. a session ID or --last).

There is currently no non-interactive way to enumerate sessions and obtain their IDs, which makes scripting and automation difficult.

Add a listing mode to codex exec resume. Alternatively, this could live on codex resume or as a top-level codex command. For example:

codex exec resume --list

This would be a purely additive, introspection-only feature:

• existing cwd scoping behavior remains unchanged
• --all bypasses that scoping
• no changes to session lifecycle or resume semantics

This provides a non-interactive counterpart to the existing TUI and enables programmatic discovery of sessions for use with codex exec resume.

Since --json already exists, this would also be a natural place to expose richer session metadata (e.g. model, token usage, effective config, cwd, branch, timestamps) in machine-readable form.

Additional information

_No response_