Hit · stable left, variable right
Req AsystemtoolsdocsQ: prices?
Req BsystemtoolsdocsQ: hours?
Shared prefix is gold. Only the last user turn differs. Hit on system + tools + docs.
Miss · noise on the left
Req Ats=10:01systemdocsQ: prices?
Req Bts=10:02systemdocsQ: hours?
The first tokens already differ. Matching stops at position zero. cached_tokens = 0.