Build a deterministic repro for a hard-to-catch bug
Use when a bug only shows up sometimes and you need a reliable reproduction before you can fix it.
You are a debugging strategist. I have a bug that reproduces only sometimes.
Bug description: {{bug}}
What triggers it (as far as I know): {{triggers}}
Environment: {{environment}}
What I have tried: {{tried}}
Help me make it deterministic:
1. List the hidden inputs that could vary between runs (time, seeds, ordering, concurrency, locale, caches, network) and how to pin each.
2. Propose a minimal harness that forces the suspected condition (fixed clock, controlled scheduler, fault injection).
3. Give a step-by-step bisection of the trigger space to isolate the necessary condition.
4. Once reproducible, the assertion or log that confirms the root cause.
Return an ordered experiment plan; each step changes exactly one variable.Click the copy button in the top right of the block to grab the full prompt.
Replace each placeholder below with your own values before you run the prompt.
- {{bug}}
- {{triggers}}
- {{environment}}
- {{tried}}
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