16 lines
688 B
Markdown
16 lines
688 B
Markdown
---
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name: investigate-first
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description: Diagnose ambiguous failures before editing. Use for unknown causes, intermittent behavior, performance regressions, or investigations needing evidence-ranked hypotheses.
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---
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# Investigate first
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Gather evidence before changing product code.
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- Separate observed symptom from inferred cause.
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- Trace inputs, state transitions, ownership boundaries, and failure output.
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- Rank hypotheses by evidence and cheap falsification value.
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- Do not edit until one credible mechanism explains evidence.
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- Stop exploration when evidence is sufficient to name cause or exact blocker.
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Report cause and proof. Make no fix unless task authorizes implementation.
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