V-659 measured the destination at 12/33 on the classifier cascade and named
the gap: recall 0/15, because nothing anywhere names it. The model could not
help, for a structural reason rather than a capability one. Nothing in
routeSystem mentioned a Source and routeGrammar could not emit one, so there
was no string for it to write. Same shape as the Praxis reach V-517
measured at 0/12.
routeGrammar grows a source rule, closed over router.Sources plus the empty
floor. A grammar cannot emit a destination that does not exist, which is the
guarantee V-546 wants from a softmax and gets here for free. The prompt
lists the twelve in Russian, one line each, and says plainly that "" is a
normal answer to give often: two sources that can both answer means the
chain walks, and guessing is the failure mode this whole field exists to
stop.
The read-back goes through ValidSource and runs on IntentQuery alone. The
grammar already bounds the enum, but it is a request to a server that may be
running another build, and only a query reaches queryWalk.
Measured against gemma-4-12b on the workstation, same fixture, cascade with
a hash fallback: destination 24/33 (72.7%) against the classifier's 12/33,
and intent 81/96 (84.4%) which is where it already was. Recall is the whole
move, 0/15 to 14/15. The model alone scores 26/33.
Four cases the cascade loses and llm-only wins are calendar. The possessive
agenda rules claim them at stage 0 and deliberately name nothing, because
"что у меня в списке покупок" matches the same rule and naming the calendar
would take the list source off the turn. So stage 0's caution now costs four
destination points it did not cost before. That is a real trade and it wants
its own argument, not a quiet edit here.
The resident Qwen3-1.7B is unmeasured: it binds --port 0 inside the
container and no host process can reach it.
llm/check_prompt_parity.py in the training workspace compares its copy of
routeSystem to this one and will fail until that copy gets the same edit.
V-362 covers the catch-up.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_013ptwopxyo3Z2kwFckHkLvN
claude
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