Windows Codex App 26.915.4065.0 fails to load openai-bundled plugins, causing Browser, Computer Use, and Image Gen to be unavailable

What version of the Codex App are you using (From “About Codex” dialog)?

26.915.4065.0

What subscription do you have?

Free (also reproduced when testing with a Plus account)

What platform is your computer?

Windows 11 25H2, x86_64, build 26200.9457

What issue are you seeing?

After updating/using Codex App on Windows, several built-in tools are no longer available even though the corresponding files and runtimes are present in the installed package.

Observed behavior:

• Browser control is unavailable.
• Computer Use is unavailable.
• Image generation is unavailable in Codex. The model recognizes the Image Gen skill/instruction, but reports that the actual image_gen tool is not attached to the current session.
• Restarting Codex, force-reloading skills, terminating all Codex/ChatGPT processes, and reopening the app do not restore these tools.
• Windows App Repair also cannot be triggered reliably and reports that the app is still running, even after all Codex/ChatGPT processes have been terminated.

Diagnostics:

Codex App version:

26.915.4065.0

Embedded CLI:

codex-cli 0.155.0-alpha.9.2

The installed Windows package contains the bundled plugins:

browser
chrome
codex-app-tools
computer-use
deep-research
latex
unified-computer-use
user-writing
visualize

The Computer Use native runtime also exists:

C:\Users\ROG\AppData\Local\OpenAI\Codex\runtimes\cua_node\df473e5367fa2b42\bin\node_modules\@oai\sky\bin\windows\codex-computer-use.exe

However, the active plugin marketplaces only show:

openai-primary-runtime
openai-curated

openai-bundled is missing.

Running:

codex plugin marketplace remove openai-bundled

returns:

Error: marketplace `openai-bundled` is not configured or installed

Trying to manually add the bundled marketplace:

codex plugin marketplace add <path-to-openai-bundled>

returns:

Error: marketplace `openai-bundled` is reserved and cannot be added from this source

The expected user-side bundled marketplace/cache is also missing:

C:\Users\ROG\.codex\.tmp\bundled-marketplaces\openai-bundled

and:

C:\Users\ROG\.codex\plugins\cache\openai-bundled

do not exist.

At the same time, config.toml still contains references to the bundled browser plugin, for example:

NODE_REPL_TRUSTED_SERVICES = '{"browser":"C:/Users/ROG/.codex/plugins/cache/openai-bundled/browser/26.915.31945/scripts/browser-service.mjs","sky":"@oai/sky/service"}'

Logs also repeatedly report:

failed to load plugin: plugin is not installed
plugin="codex-app-tools@openai-bundled"
path=C:\Users\ROG\.codex\plugins\cache\openai-bundled\codex-app-tools

The same logs show that relevant feature flags are enabled, including:

BrowserUse
BrowserUseFullCdpAccess
BrowserUseExternal
ComputerUse
ImageGeneration
Plugins

so the features appear to be enabled, but the actual tools/plugins are not being materialized or exposed to the Codex session.

For Image Gen specifically, Codex reports messages such as:

The current Codex session does not provide the actual image_gen tool, so I cannot generate the image directly.

This also reproduces in a newly opened Codex session.

Expected behavior:

The built-in openai-bundled marketplace should be initialized automatically, and Browser, Computer Use, and Image Generation tools should be available when the account is eligible.

Actual behavior:

The bundled plugin files exist inside the installed AppX/MSIX package, but openai-bundled is not registered/materialized into the user's Codex plugin state, leaving multiple built-in tools unavailable.

What steps can reproduce the bug?

Submitted performance trace: 01a0b816-f125-7471-b435-039af82e6f6c

What is the expected behavior?

Codex should automatically initialize and load the built-in openai-bundled marketplace.

When the relevant features are enabled, Browser, Computer Use, and Image Generation should be exposed as usable tools in Codex sessions.

For example:

• Asking Codex to generate an image should invoke the actual image_gen tool.
• Asking Codex to browse the web should make the built-in browser available.
• Asking Codex to control supported desktop applications should make Computer Use available.

The user should not need to manually register or copy bundled plugins from the installed Windows package.

Additional information

This does not appear to be a missing installation file.

The installed Codex package contains the expected bundled plugins, and the Computer Use native runtime is also present.

However, openai-bundled is absent from the active marketplace list and from the user plugin cache.

Relevant environment:

Codex App: 26.915.4065.0
Embedded CLI: codex-cli 0.155.0-alpha.9.2
Windows: Windows 11 x64

The Codex logs also show enabled feature flags including:

BrowserUse
BrowserUseFullCdpAccess
BrowserUseExternal
ComputerUse
ImageGeneration
Plugins

but also repeatedly report:

failed to load plugin: plugin is not installed
plugin="codex-app-tools@openai-bundled"

This suggests that the feature flags are enabled and the bundled plugin files exist, but the bundled marketplace/tools are not being materialized or exposed to the active Codex session.

The issue also persists after:

• restarting Codex,
• creating a new conversation,
• force-reloading skills,
• terminating all Codex/ChatGPT processes,
• and attempting Windows App Repair.

The Desktop folder on this machine is redirected to drive D:, while USERPROFILE, .codex, and Codex runtime data remain under C:\Users\ROG. I am including this in case Windows Known Folder redirection is relevant.

Start by tracing bundled marketplace initialization and plugin loading using the config.toml references, the openai-bundled cache paths, and logs reporting “plugin is not installed.” Compare the installed AppX/MSIX contents with the active marketplace state and use the submitted performance trace as evidence. Done means openai-bundled is materialized automatically and eligible Browser, Computer Use, and Image Generation tools are available in a new session.