Windows Codex Desktop: browser-use@openai-bundled 0.1.0-alpha2 cache is missing scripts/browser-client.mjs
### What version of the Codex App are you using?
Codex Desktop for Windows:
OpenAI.Codex_26.506.2212.0_x64__2p2nqsd0c76g0
Local bundled plugin versions observed:
chrome@openai-bundled: 0.1.7
browser-use@openai-bundled: 0.1.0-alpha2
What platform is your computer?
Windows x64.
What issue are you seeing?
The bundled browser-use@openai-bundled plugin cache for version 0.1.0-alpha2 is missing the runtime file that its own skill instructions require:
%USERPROFILE%\.codex\plugins\cache\openai-bundled\browser-use\0.1.0-alpha2\scripts\browser-client.mjs
The file does not exist. The browser-use plugin cache only contains:
skills\browser\SKILL.md
skills\browser\agents\openai.yaml
However, skills/browser/SKILL.md explicitly says the browser client module is available at scripts/browser-client.mjs and instructs agents to stop if that path cannot be found:
The browser-client module is the core entry point for browser use, and is available under scripts/browser-client.mjs.
IMPORTANT: If this path cannot be found, stop and report that this plugin is missing scripts/browser-client.mjs.
This means the direct @browser-use / in-app browser skill path cannot be bootstrapped as documented.
Reproduction
- On Windows Codex Desktop, enable/use bundled Browser Use:
[@浏览器](plugin://browser-use@openai-bundled)
- Inspect the active plugin cache:
Get-ChildItem -LiteralPath '%USERPROFILE%\.codex\plugins\cache\openai-bundled\browser-use\0.1.0-alpha2' -Recurse -File | Where-Object { $_.FullName -notmatch '\\node_modules\\' }
- Observe that
scripts/browser-client.mjsis absent.
- Attempt to follow the skill's documented bootstrap:
const { setupAtlasRuntime } = await import(
'file:///<user-profile>/.codex/plugins/cache/openai-bundled/browser-use/0.1.0-alpha2/scripts/browser-client.mjs'
);
- The import fails because the module is missing.
Expected behavior
One of these should be true:
browser-use@openai-bundled/0.1.0-alpha2should includescripts/browser-client.mjs, matching itsSKILL.md; or- the skill instructions should point at the correct shared runtime path; or
- Codex should not expose the browser-use skill as usable when the required runtime file is missing.
Actual behavior
The plugin is exposed with instructions that depend on a missing runtime file.
Using the Chrome plugin's bundled browser client instead:
%USERPROFILE%\.codex\plugins\cache\openai-bundled\chrome\0.1.7\scripts\browser-client.mjs
can enumerate both browser backends (extension Chrome and iab Codex In-app Browser), which suggests the runtime exists elsewhere, but not under the browser-use plugin path promised by its own skill.
Additional observed behavior
While investigating this, I also reproduced the existing Browser Use external-navigation preflight failure:
- Chrome extension backend can be listed/created.
- In-app browser backend can be listed and can screenshot
about:blank. - Navigating either backend to Google search is rejected before page load with:
Browser Use rejected this action due to browser security policy. Reason: Browser Use cannot determine if https://www.google.com/search is allowed.
The packed browser-client.mjs performs this check through:
https://chatgpt.com/backend-api/aura/site_status?site_url=...&url_request_source=codex_browser_use
Related issues for the navigation/preflight side:
- #19270
- #21710
- #21955
This issue is specifically about the browser-use@openai-bundled/0.1.0-alpha2 package/cache mismatch: the skill references scripts/browser-client.mjs, but the file is absent from the active plugin cache.
Auth/provider note
This repro was collected in a setup that uses a third-party / OpenAI-compatible API provider for model requests, not a ChatGPT web-account login session.
Because of that, there may be no ChatGPT account login state available to the Browser Use runtime. If the aura/site_status preflight requires a ChatGPT-authenticated session, that should be surfaced explicitly as an auth/provider-state problem. The current user-facing error only says Browser Use cannot determine whether the target URL is allowed, which makes it look like a target-site policy issue rather than a missing ChatGPT login/session preflight dependency.
This may overlap with #21710, but the packaging issue above still remains: browser-use@openai-bundled/0.1.0-alpha2 points at a missing scripts/browser-client.mjs in its own active plugin cache.
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