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FA-99782 / Tool call schema validation / Member archive

String length uses UTF-8 bytes instead of characters · case 02

String length uses UTF-8 bytes instead of characters.

Member previewVariant 2 · 3 implementations · 7 checks per implementation

Case contract

Length bounds count Python Unicode code points in the supplied string.

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
unicode byte count is not lengthtruefalseFailed

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

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