Codex Desktop Computer Use plugin visible but runtime tools are not injected

Open 💬 2 comments Opened Jun 24, 2026 by YinL-k

Environment

  • Codex Desktop: 0.142.0
  • OS: Windows
  • Model tested: GPT-5.5 Medium
  • Computer Use plugin: installed, visible in Settings, and enabled
  • Repository / project context: local Codex Desktop thread

Problem

When I start a new thread with @Computer, Codex recognizes the Computer Use plugin label and can read the plugin SKILL.md, but the actual callable Computer Use runtime tools are not available in the thread.

The model can explain that Computer Use should use node_repl/js and the sky runtime, but it cannot actually call those tools.

Missing tools / capabilities

The new @Computer threads do not expose:

  • mcp__node_repl__js
  • node_repl js
  • js_reset
  • sky.list_apps()
  • sky.list_windows()
  • get_window_state()

Expected behavior

A new @Computer thread should expose the Computer Use runtime so Codex can call sky.list_apps(), select a window, capture it with get_window_state(), and interact with Windows apps.

Actual behavior

The model says the plugin is present but no Computer Use execution tools are available. It either reads the Computer Use SKILL.md, searches for node_repl/js, or says the tools are not injected. It cannot screenshot or control Windows windows.

Local checks

Plugin files exist locally:

C:\Users\11815\.codex\plugins\cache\openai-bundled\computer-use\26.609.41114
C:\Users\11815\.codex\plugins\cache\openai-bundled\computer-use\26.609.41114\scripts\computer-use-client.mjs

config.toml includes:

js_repl = true

[plugins."computer-use@openai-bundled"]
enabled = true

[marketplaces.openai-bundled]
source_type = "local"
source = '\\?\C:\Users\11815\.codex\.tmp\bundled-marketplaces\openai-bundled'

Troubleshooting already tried

  • Reinstalled Codex Desktop
  • Restarted Codex Desktop
  • Fully exited Codex processes
  • Opened new threads
  • Disabled/re-enabled Computer Use plugin
  • Confirmed plugin files exist locally
  • Confirmed Computer Use appears in Settings
  • Restored openai-bundled marketplace and plugin cache
  • Tried explicit prompts asking not to use shell / PowerShell / Get-Process

Important observation

The plugin is visible in Settings, so installation/discovery appears to work. The failure is specifically that the Computer Use runtime tools are not injected into the model/tool list for new @Computer threads.

Request

Please investigate why Codex Desktop on Windows is not injecting node_repl/js or the Computer Use sky runtime tools for enabled Computer Use plugin threads.

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