VS Code Codex Plugin API Configuration Issue: How to Fix Missing CODEX_API_KEY

This article discusses the CODEX_API_KEY environment variable missing issue when using third-party APIs with the VS Code Codex plugin. The author notes that while Codex works directly in the WSL terminal, the official plugin fails to function properly despite the API key being defined in the auth.json file. This issue affects the developer experience when using AI-assisted programming features in the VS Code environment. The post has generated some discussion with 6 posts and 2 participants, indicating this is a problem many developers may encounter. Understanding the solution to this issue has significant reference value for users of VS Code and the Codex plugin.