FA-98603 / KV cache position mapping / Member archive
Prefix cache reuse crosses namespace boundaries · case 03
Matching token prefixes are reused across incompatible cache namespaces.
Case contract
Return the common token prefix length only when cache_namespace equals request_namespace; otherwise return zero.
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 |
|---|---|---|---|
| different model | 2 | 0 | Failed |
MEMBER ARCHIVE
The complete case is available to members.
This record includes three runnable implementations, regression fixtures, execution results, and source hashes.
Member access is invitation-based. Sign in with your invited account to inspect the sources.
Sign in to the archive ↗