Explain this to me like I'm not a developer:

$ARGUMENTS

Rules:
- Use simple, everyday language — no jargon
- If I pasted code, explain what it does step by step
- If I pasted an error, explain what went wrong and how to fix it
- If I named a file or folder, read it and explain what it's for
- If I asked a concept question, explain it with an analogy
- Keep it short — 2-3 paragraphs max unless I ask for more detail

If nothing was provided above, ask: "What would you like me to explain? You can paste code, an error message, a file name, or ask about any concept."