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feat(directives): add rule-statement header to 9-16 of 66 v1.md files
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# For live_gui tests, verification must be batch — not isolated
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### Isolated-Pass Verification Fallacy (Added 2026-06-09)
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A test that "passes when run after test X but fails in isolation" is a **fragile test, not a fragile fixture**. The flip side is also true: a test that "passes in isolation but fails in batch" is failing — its failure is masked by isolation. The only verification that matters for `live_gui` tests (or any test that depends on shared subprocess state) is the **batch run** in the suite the test will ship in.
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