# Russian acts reach tools

**06-08-2026. V-633.** Measured with `TestONNXBaseline`, 91-case RU routing fixture,
classifier plus the ONNX embedder. No LLM arm in this run.

## What was wrong

Three defects, tangled enough that fixing one alone would have looked like progress.

**No Russian utterance could reach a tool.** `DefaultActMatcher` in
`internal/router/slots.go` matched an exact English prefix, and `internal/tool.Matcher`
delegated straight to it. Its comment claimed "the production matcher is fuzzy, this is the
scaffold floor". There is no other matcher, and `DefaultGrammars` is the only place
`Slots.Fn` is set at stage 0, so the floor was the ceiling. Measured with a throwaway
matcher test over the seeds:

```text
"покажи статус nginx"    ok=false   "restart nginx"  ok=true fn=restart
"сколько места на диске" ok=false   "disk"           ok=true fn=disk
"свободная память"       ok=false   "uptime"         ok=true fn=uptime
"перезагрузи роутер"     ok=false
```

55 of the 69 lines in `models/seeds/act.txt` routed to `IntentAct` and then fell to
`proposeGap`. Praxis was never affected: `PraxisGrammars` fills `Slots.Fn` itself.

**Seven lines were duplicated inside `models/seeds/query.txt`.** A duplicate is a second
identical vector, so it double-weights its region in nearest-neighbour scoring.

```text
сколько человек дома
кто сейчас дома
какая загрузка процессора
сколько свободного места на диске
какой ip адрес у сервера
какая версия софта
сколько оперативной памяти свободно
```

**`как дела у сервера` carried two labels**, in `query.txt:13` and `system.txt:9`. One
string, two identical vectors, disagreeing about the answer.

## The change

Tools carry spoken aliases as config data, in `deploy/mavend.json`. They are not a Russian
stem pattern in code, which CLAUDE.md forbids. They are not on the tool row either. An
ad-hoc tool enabled through `/tools` has no aliases and needs none.

Aliases and names compete in one table, longest phrase first, so "перезагрузи контейнер"
beats "перезагрузи" and "docker-restart" is not shadowed by "restart". Matching is on exact
leading tokens rather than lemmas. `перезагрузи роутер` is a command and `перезагрузил
роутер` is a fact, and a lemma cannot tell the two apart. That is the trap
`cmd/mavend/quiet_toggle.go` documents for `говори`.

The seven duplicates are gone, and `как дела у сервера` stays in `query.txt` only. It left
`system.txt` because system cannot answer it: `replySystem`'s
память/загрузк/аптайм arm returns "системная статистика пока не подключена." and always
did. That arm is a stub, not a mode, so the mode inventory now lists the shape as
`act.tool.hoststats`.

## Result

**69/91, 75.8% full, unchanged.** Clarify counts unchanged at 0 false and 8 missed.

Nothing moved, and that is the honest number. The fixture holds no host-stat case and no
Russian act that reaches a tool, so it cannot see either fix. The new coverage is
`TestActMatcherAliases`, which asserts the twelve utterances above plus the two refusals.

## What this does not fix

Argument quality. `статус sshd` reaches `systemctl status sshd`, but `логи nginx` reaches
`journalctl -n 50 -u nginx` only because the tool's argv prefix ends in `-u`. An alias whose
remainder is a Russian noun ("перезагрузи роутер") hands `systemctl restart роутер` a target
that does not exist. Free text still reaches an argv, which is the resolution rule the
ecosystem contract states for Hexis and not yet true here.

The fixture cannot measure any of this. That is the observability gap V-629 is for.
