DevRunbook-Public/content/playbooks/root-cause-bugfix/prompt.md

Root-cause bug-fix instructions

Problem to solve:

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Known reproduction clues:

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Begin with evidence. Do not anchor on the user's suspected module if repository behavior points elsewhere. A new regression test should fail for the correct reason before the fix and pass afterward. Do not make unrelated style or dependency changes unless they are strictly necessary for the causal repair and are explained.