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Sliding window stops after the initial query rows · case 03

Sliding window stops after the initial query rows.

Member previewVariant 3 · 3 implementations · 6 checks per implementation

Case contract

For each query i in a sequence of length L, visible keys are max(0,i-W+1)..i; W<=0 means none.

Why this case matters

A small explicit visibility matrix makes sequence-attention boundary behavior reviewable.

One recorded failure

Sample boundary fixture

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

Boundary fixtureActualExpectedOutcome
moving boundary[[true, false, false, false, false, false], [true, true, false, false, false, false], [false, false, false, false, false, false], [false, false, false, false, false, false], [false, false, false, false, false, false], [false, false, false, false, false, false]][[true, false, false, false, false, false], [true, true, false, false, false, false], [false, true, true, false, false, false], [false, false, true, true, false, false], [false, false, false, true, true, false], [false, false, false, false, true, true]]Failed

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