Show a detailed context usage breakdown when clicking context usage in Codex App #29783

What feature would you like to see?

In Codex Desktop, please make the context/content usage indicator clickable so it can show a detailed usage breakdown, similar to the context usage report shown in ChatGPT.

Current problem

Codex users often work in long-running conversations, and it is hard to understand what is consuming the context window. A simple percentage or usage indicator is helpful, but not enough when the conversation gets large.

Suggested behavior

When the user clicks the context/content usage indicator in Codex App, show a detailed report with information such as:

• Total usage percentage, e.g. 68% Full
• Token usage, e.g. ~205.5K / 300K Tokens
• A visual segmented usage bar
• Breakdown by source/category, for example:
  • System prompt
  • Tool definitions
  • Rules
  • Skills
  • MCP
  • Subagent definitions
  • Conversation
• Token count for each category

Why this matters

This would make it much easier to manage long Codex sessions. Users could understand whether the context is mostly being used by conversation history, tool definitions, rules, MCP content, or other sources.

For long-running development tasks, this helps users decide whether to continue the current chat, summarize/reset, reduce tool/context overhead, or start a new chat.

Expected behavior

Clicking the context/content usage indicator in Codex App should open a detailed usage popover or report instead of only showing a high-level usage number.

Example

The desired UI is similar to a context usage report that shows:

Context Usage
68% Full
~205.5K / 300K Tokens

System prompt          4.7K
Tool definitions      24.0K
Rules                  1.7K
Skills                 3.7K
MCP                    4.4K
Subagent definitions   1.8K
Conversation         165.3K

Environment example

• Codex Desktop 26.616.81150 — Released Jun 24, 2026
• macOS Tahoe 26.5.1
• MacBook Pro 16-inch
• Apple M5 Max
• 128 GB memory