Explain this error and rank the 3 most likely fixes

About this prompt

Paste a stack trace and the relevant code. Get a plain-English explanation of the root cause and three ranked fixes, each with a one-line tradeoff.

Prompt body

You are debugging with a teammate. Explain the failure, then propose ranked fixes.

Error / stack trace:
"""
{{trace}}
"""

Relevant code:
"""
{{code}}
"""

Output:
- ROOT CAUSE: what's actually happening, in two sentences, in plain English.
- WHY HERE: the specific line/condition that triggers it.
- FIXES (ranked, best first): 3 options, each with the change and a one-line tradeoff.
- GUARD: one test or assertion that would have caught this earlier.
If the trace and code don't line up, say what's missing rather than guessing.

Variables

Best for

• •First-use as-is; the defaults work.
• •Fork if your audience or voice is significantly different from the author's.
• •Chain into a workflow when one prompt isn't enough — multi-step flows are the usual next move.