FA-98629 / KV cache position mapping / Member archive
Multi-token append reserves capacity atomically · case 04
A request that does not fit partially consumes free cache slots.
Case contract
Return the requested count if it fits in capacity-used, else zero; never return a partial count.
Why this case matters
A small in-memory model makes the cache address contract explicit for a serving component.
One recorded failure
Sample boundary fixtureThis sample comes from the broken implementation of a controlled reproducer.
| Boundary fixture | Actual | Expected | Outcome |
|---|---|---|---|
| one free short | 2 | 0 | Failed |
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