FA-100824 / Model output stopping rules / Member archive

Output stopping: A full token budget is not reported as a length finish · case 04

A full token budget is not reported as a length finish.

Member previewVariant 4 · 3 implementations · 6 checks per implementation

Case contract

Return length when the emitted token count has reached or exceeded the nonnegative cap; otherwise return None. This includes cap zero with an empty output.

Why this case matters

A deterministic output-control model isolates one finish or streaming boundary from any particular runtime.

One recorded failure

Sample boundary fixture

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

Boundary fixture	Actual	Expected	Outcome
exact cap	`null`	`"length"`	Failed

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