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FA-100684 / Speculative decoding bookkeeping / Member archive

Decoding: Proposal contains one token beyond the verifier window · case 04

Proposal contains one token beyond the verifier window.

Member previewVariant 4 · 3 implementations · 7 checks per implementation

Case contract

Clamp window to at least zero, then return at most that many draft tokens from the beginning.

Why this case matters

A self-contained bookkeeping model makes prefix and token-count semantics observable without a model runtime.

One recorded failure

Sample boundary fixture

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

Boundary fixtureActualExpectedOutcome
truncate[0, 1, 2, 3, 4][0, 1, 2, 3]Failed

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