FAILURE MAP
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Ignored targets remain in the loss denominator · case 05

Ignored targets remain in the loss denominator.

Member previewVariant 5 · 3 implementations · 6 checks per implementation

Case contract

Count true mask entries whose indexes correspond to labels[1:]; absent mask positions count as false.

Why this case matters

A small deterministic token-stream contract makes next-token alignment errors inspectable.

One recorded failure

Sample boundary fixture

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

Boundary fixtureActualExpectedOutcome
ignored target mask21Failed

MEMBER ARCHIVE

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

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