PromptVault
CodingFreeBeginner

Why is the environment variable missing?

For developers tracing a value that exists in their shell but not in the running app.

Works with
  • Cursor
  • GitHub Copilot
The prompt54 words · 1 blank

Diagnose why the environment variable in [runtime_context] is undefined inside the application

The full prompt is in the app

Free — no subscription needed. Fill in the blanks there, then copy it into Cursor.

What you fill in

  • Runtime context[runtime_context]ExampleVALUE is visible in zsh, but undefined in an app launched from VS Code on macOS

How to use it

  1. 1Open it in PromptVault. Find it in Coding, or search for “Why is the environment variable missing?”.
  2. 2Fill in the blank. runtime context — the only things the prompt cannot know.
  3. 3Copy and paste it into Cursor. It also works with GitHub Copilot.

About this prompt

Why is the environment variable missing?” is a beginner coding prompt. For developers tracing a value that exists in their shell but not in the running app. It is 54 words long and written to get a usable answer on the first message, in Cursor and GitHub Copilot or any other chat assistant. Good for: troubleshooting, debugging, beginner friendly and quick win. Like every prompt in PromptVault, it was written and edited in-house, and it works offline once the app is installed.