bundled_plugins_marketplace_resolve_failed / plugin_marketplace_folder_write_failed

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

OpenAI.Codex_26.820.9563.0_x64__2p2nqsd0c76g0.

What subscription do you have?

Free

What platform is your computer?

Windows x64

What issue are you seeing?

Reproduced on the latest Windows Store build as of today (2026-08-27): OpenAI.Codex_26.820.9563.0_x64__2p2nqsd0c76g0.

Same signature as the original report — bundled_plugins_marketplace_resolve_failed / plugin_marketplace_folder_write_failed, errorCode=UNKNOWN, copyfile ... The specified file could not be encrypted. Confirmed via Copy-Item reproduction on the exact source file (plugins\chrome.codex-plugin\plugin.json), which has NTFS attributes Archive, Encrypted. robocopy succeeds on the same file (writes a plain, unencrypted copy); Copy-Item/Node fs.copyFile do not.

The codex plugin marketplace add workaround from the comments below no longer works on current builds. I fully robocopied the entire app\resources\plugins\openai-bundled package (826/826 files, including .agents\plugins\marketplace.json) into a user-owned directory and tried both (a) manually adding [marketplaces.openai-bundled] to config.toml, and (b) codex plugin marketplace add via codex-cli 0.150.1. (a) is silently ignored — codex plugin marketplace list never shows it. (b) now fails explicitly:

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

So it looks like a newer build added a guard that rejects manually registering openai-bundled, which closes off the workaround several commenters below reported success with on older builds (~26.527.x). At this point there is no user-side workaround left that I can find — the fix has to come from either not attempting a copy that preserves EFS attributes, or reading bundled plugin metadata directly from the installed package instead of staging a copy.

Environment: Windows 11 (domain-joined lab-style hostname), Codex 26.820.9563.0, codex-cli 0.150.1, install via Microsoft Store.

What steps can reproduce the bug?

OpenAI.Codex_26.820.9563.0_x64__2p2nqsd0c76g0.

What is the expected behavior?

No response

Additional information

No response

Start by reproducing the failure with the bundled package path and the plugins\chrome.codex-plugin\plugin.json file, comparing Copy-Item or Node fs.copyFile with robocopy. Inspect the handling of app\resources\plugins\openai-bundled and the codex plugin marketplace commands. Done means the bundled marketplace works on the current Windows Store build without the reported encryption or reserved-marketplace failure.