Computer Use plugin never served to account — missing from openai-curated-remote cache (Windows, MSIX build)

What issue are you seeing?

Summary

The Computer Use plugin is never delivered to my account. It does not appear
in the plugin catalog and its files are absent from the curated plugin cache,
while all the local Computer Use machinery is installed and running.

Symptom looks related to #18404, where the bundled plugin files were simply
missing for one build variant.

Environment

• ChatGPT desktop app, package OpenAI.Codex 26.901.4073.0, installed as
  MSIX from the Microsoft Store (E:\WindowsApps\...)
• Plugin runtime: 26.903.11726
• Help → Check for updates: "ChatGPT is up to date"
• Windows 11, Poland (EEA)
• Plan: ChatGPT Pro

What is missing

• Plugins catalog: no "Computer Use" entry. Searched in ChatGPT mode and
  Codex mode, under both the Public and Personal tabs. Only an
  unrelated third-party result comes back.
• Switcher offers only ChatGPT and Codex — no Work.
• Settings search indexes "Experimental features (beta)" (Configuration) and
  "Desktop app beta features" (General), but neither section renders on its
  page.

What IS present locally

• %USERPROFILE%\.codex\config.toml → notify hook points at
  ...\runtimes\cua_node\<hash>\bin\node_modules\@oai\sky\bin\windows\codex-computer-use.exe
• Same file: SKY_CUA_NATIVE_PIPE = "1" and a live
  \\.\pipe\codex-computer-use-<uuid> pipe, plus an mcp_servers.cua_repl entry
• %USERPROFILE%\.cua-driver\ with cua-driver.exe, cua-driver-uia.exe,
  cua-cursor-theme.exe — release 0.22.2 installed and running
• %USERPROFILE%\.codex\computer-use\config.json exists, containing the overlay
  strings ("ChatGPT is using your computer", "Esc to cancel")
• Settings → Computer use page renders and works for Google Chrome (extension
  installed) and Microsoft Excel

So the runtime ships and runs — only the plugin is never served.

Clean reinstall (did not help)

Deleted %USERPROFILE%\.codex, %USERPROFILE%\.cua-driver and
%LOCALAPPDATA%\OpenAI, reinstalled the app, signed in fresh.

.codex\plugins\cache\openai-curated-remote\ then re-populated with exactly six
plugins, and computer-use is not one of them:
app-6a3293e129088191abf0875820e839da 1.5.0
deep-research-work 0.1.14
github 0.1.12-5f7cd798dc99
gmail 0.1.10
openai-templates 0.1.1
plugin-management 0.1.0

Why this does not look like a plan or region gate

Another user on Windows, in Poland, on a lower-tier plan than mine has the
Computer Use plugin and actually drives desktop applications with it. Same OS,
same country, cheaper plan.

Question

Is the plugin excluded from the MSIX / Microsoft Store build of the Windows app,
or is this an account-level flag? If it is a flag, what determines it?

What steps can reproduce the bug?

1. Install the ChatGPT desktop app on Windows 11 from the Microsoft Store
   (package OpenAI.Codex, version 26.901.4073.0, plugin runtime 26.903.11726).
2. Sign in with a ChatGPT Pro account located in Poland (EEA).
3. Follow the documented setup from
   https://learn.chatgpt.com/docs/computer-use :
   "select ChatGPT and switch to Work in the switcher, or select Codex.
   Open Plugins > Computer Use and select Install plugin if prompted."
   • The switcher offers only ChatGPT and Codex. There is no Work option.
   • Switch to Codex, open Plugins.
4. Search the plugin catalog for "computer use". Repeat in ChatGPT mode.
   Repeat under both the Public and the Personal tab.
   => No Computer Use entry in any of the four combinations.
5. Open Settings > Plugins. 13 plugins are installed; Computer Use is not
   among them.
6. Open Settings > Computer use. The page renders and works for Google Chrome
   (extension installed) and Microsoft Excel, so the feature surface exists.
7. Type "beta" into the settings search. It returns
   "Experimental features (beta)" under Configuration and
   "Desktop app beta features" under General. Open each of those pages and
   scroll to the bottom => neither section is rendered anywhere on the page.
8. Do a full clean reinstall: uninstall the app, delete %USERPROFILE%.codex,
   %USERPROFILE%.cua-driver and %LOCALAPPDATA%\OpenAI, reinstall, sign in fresh.
9. Inspect %USERPROFILE%.codex\plugins\cache\openai-curated-remote
   => six plugins were re-downloaded (app-*, deep-research-work, github, gmail,
   openai-templates, plugin-management). computer-use is not one of them.
10. Inspect %USERPROFILE%.codex\config.toml and %USERPROFILE%.cua-driver
    => the Computer Use runtime IS installed: codex-computer-use.exe under
    runtimes\cua_node, SKY_CUA_NATIVE_PIPE=1 with a live named pipe, an
    mcp_servers.cua_repl entry, and cua-driver.exe release 0.22.2 running.

Expected: the Computer Use plugin appears in the catalog and can be installed
and enabled, as the documentation describes.

Actual: the plugin is never served to the account. Everything around it ships
and runs, only the plugin itself is absent.

Note: there is no code snippet to provide — this is a packaging/distribution
issue in the desktop app, not a runtime error. No error message is shown
anywhere; the entry simply does not exist.

What is the expected behavior?

No response

Additional information

No response

Reproduce the issue on the Windows MSIX build, then inspect the curated plugin cache under %USERPROFILE%.codex\plugins\cache\openai-curated-remote\ alongside config.toml and the documented Computer Use setup. Compare the served plugin list with a working account or build. Done means identifying why computer-use is absent and ensuring it appears in the catalog and can be installed.