Bug Report — Codex runtime bundle not provisioned (bundleVersion=null)

Description

When attempting to install or reinstall Codex workspace dependencies in the Codex Desktop App, the process fails and the diagnostic output shows:

bundleVersion = null
installed = false
problemCount = 1

The runtime bundle is not provisioned, preventing bundled workspace tools/dependencies from becoming available.

Steps to reproduce

1. Open Codex Desktop App.
2. Go to Settings -> Configuration -> Workspace Dependencies.
3. Click "Diagnose" or "Reinstall".
4. Observe that reinstall fails and the runtime bundle is not loaded.

Expected behavior

• Runtime bundle should be downloaded/provisioned.
• A valid bundle version should be registered, e.g. bundleVersion=0.x.x.
• Workspace dependencies should become installed/operational.

Actual behavior

• Runtime is not downloaded or not recognized.
• bundleVersion remains null.
• Workspace dependencies remain unavailable.

Technical notes

This appears to be a runtime bundle provisioning failure. It does not look like a local Node/Python execution issue.

Observed locally:

• Codex feature flag workspace_dependencies is enabled.
• Bundled local Node runs successfully: v24.14.0.
• Bundled local Codex CLI runs successfully.
• Network from bundled Node reaches OpenAI/GitHub endpoints.
• Temporarily relaxing Windows Defender exclusions and the Codex sandbox firewall block did not change the result.
• Logs continue to show bundleVersion=null installed=false problemCount=1.

Possible causes:

• backend/API not returning the runtime bundle config
• broken client release/runtime provisioning path
• workspace bootstrap failure before install starts

Troubleshooting performed

• Reinstalled/repaired Codex Desktop App through Microsoft Store/winget.
• Verified local bundled binaries exist under %LOCALAPPDATA%\OpenAI\Codex\bin.
• Verified bundled Node executes successfully.
• Verified Git is installed and available.
• Tried running/reinstalling as administrator.
• Temporarily disabled Codex sandbox outbound firewall block and added temporary Defender exclusions for Codex/Node, then restored original security settings.
• Tested in the configured workspace after reinstall/repair.

Issue persists.

Environment

• OS: Windows 10.0.19045 x64
• Codex Desktop App release: codex@26.429.30905
• Microsoft Store package: OpenAI.Codex_26.429.3425.0_x64__2p2nqsd0c76g0
• Installation: Microsoft Store / Desktop App
• Auth method: ChatGPT
• Network: no VPN/proxy configured

Impact

Blocks Codex workspace dependency usage entirely because the runtime bundle is unavailable.

Suspected root cause

Runtime bundle provisioning failure, likely backend/API config or client release issue rather than a local environment problem.