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Duplicate array values pass a uniqueness constraint · case 03

Duplicate array values pass a uniqueness constraint.

Member previewVariant 3 · 3 implementations · 6 checks per implementation

Case contract

Array uniqueness uses JSON-like type-sensitive scalar identity; an empty or singleton list is unique.

Why this case matters

Tool argument validation prevents malformed structured payloads from entering a deterministic downstream operation.

One recorded failure

Sample boundary fixture

This sample comes from the broken implementation of a controlled reproducer.

Boundary fixtureActualExpectedOutcome
duplicate stringtruefalseFailed

MEMBER ARCHIVE

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This record includes three runnable implementations, regression fixtures, execution results, and source hashes.

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