Feature request: command-backed/custom statusline rendering in Codex CLI

Summary

Please add support for a command-backed or otherwise user-customizable statusline in Codex CLI, similar to Claude Code's statusLine command hook.

Codex CLI currently supports tui.status_line, but it appears to accept only a fixed enum of built-in items such as:

• model-with-reasoning
• task-progress
• current-dir
• context-used
• five-hour-limit
• weekly-limit

That is useful, but it cannot reproduce richer statuslines that users can build in Claude Code.

Use case

Claude Code supports a config like:

"statusLine": {
  "type": "command",
  "command": "node \"/Users/me/.claude/statusline.js\""
}

That allows users to render a compact, high-signal statusline with ANSI colors, unicode/block meters, custom separators, derived context calculations, current task text, and rate-limit bars, for example:

Opus 4.7 (1M context) [xhigh] | project ctx ███░░░░░░░ 43% 5h ██████░░░░ 66% 7d ██████░░░░ 62%

The closest Codex native statusline today renders as plain built-in fields, for example:

gpt-5.5 xhigh · ~ · Context 0% used · 5h 98% · weekly 86%

This lacks the custom labels, colored thresholding, bar meters, compact formatting, and user-defined calculations that are possible in Claude Code.

Requested capability

Please support one of these approaches:

1. A command-backed statusline hook that receives session/status JSON on stdin and prints one statusline string on stdout, matching Claude Code's model.
2. A custom statusline template format that supports literal text, ANSI styling, unicode/block characters, conditional segments, and current session metrics.
3. A plugin/API surface for statusline providers.

Why this matters

For heavy CLI users, the statusline is operational telemetry: model/reasoning, active task, cwd/project, context usage, 5-hour usage, weekly usage, and risk-level coloring. A fixed enum is helpful, but it prevents users from making Codex visually and functionally match existing terminal workflows.

Environment observed

• Codex CLI: 0.125.0
• Platform: macOS
• Current available config path: [tui] status_line = [...]
• Missing capability: arbitrary command/custom renderer for statusline text, colors, high-ascii/unicode meters, and derived metrics