an alarm verb reaches stage 0, and the reminder grammar reads the lexicon (V-627)

reminder_verbs held five words and none named an alarm, and ReminderGrammar
did not read the set anyway — it carried the literal напомни|remind me. So no
part of the cascade recognised разбуди, and the three alarm cases in the
fixture went to fact and act at over 0.89.

The lexicon addition alone moved nothing, measured at 66/91. Every consumer
reads the set after a reminder route already exists. Building the grammar's
alternation from the set is what scored: 66/91 to 69/91, three cases gained,
none lost, and each alarm now carries its time slot.

Longest-first ordering in the alternation is load-bearing. Go's regexp
alternation is leftmost-first, so напомнить after напомни would never match.

Found while training the V-546 intent head, where the same three cases went
to system.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_0117tgnmbgZpHVV3XSNw8Qua

docs/evals/2026-08-06-alarm-verbs-reach-stage-0.md

@@ -0,0 +1,51 @@
+# Alarm verbs reach stage 0
+
+**06-08-2026. V-627.** Measured with `TestONNXBaseline`, 91-case RU routing fixture,
+classifier plus the ONNX embedder. No LLM arm in this run.
+
+## What was wrong
+
+`lexicon.ReminderVerbs` held five words and none of them named an alarm. `ReminderGrammar`
+in `internal/router/stage0.go` did not read the set at all: it carried the literal
+`напомни|remind me`. So no part of the cascade recognised `разбуди`.
+
+Three fixture cases ride on that. Under the classifier they went to fact and act at high
+confidence, so the failure was never a near miss:
+
+- `ru-rem-005` "разбуди меня в 6:30" to fact at 0.918
+- `ru-rem-009` "разбуди меня полвосьмого" to act at 0.941
+- `en-rem-002` "wake me at 6:15" to fact at 0.899
+
+Found while training the V-546 intent head, where the same three cases went to system. The
+head reads a spoken time with no known verb in front of it as a clock question. The
+classifier was making the same mistake in its own way.
+
+## The change
+
+Four alarm imperatives and bare `wake` join `reminder_verbs`. `ReminderGrammar` builds its
+alternation from the set, longest alternative first, and eats an optional `мне`, `меня` or
+`me` before the body.
+
+Longest-first is load-bearing. Go's alternation is leftmost-first rather than longest-match,
+so `напомнить` listed after `напомни` would never match.
+
+## Result
+
+**66/91 to 69/91, 72.5% to 75.8% full.** Three cases gained, none lost.
+
+All three are the alarms above, and each now carries its time slot, which it did not before.
+Clarify counts unchanged at 0 false and 8 missed. The two remaining system failures,
+`какое число завтра` and `какой день недели послезавтра`, failed at baseline too.
+
+## What this does not fix
+
+The lexicon addition on its own moved nothing. Measured before touching the grammar:
+**66/91**, exactly the baseline. Every consumer of `reminder_verbs` reads it after a reminder
+route already exists. A verb that cannot win the route is a verb nobody asks about. The
+grammar was the whole change.
+
+Lemma matching in `isReminderVerb` now covers `разбудил` as well as `разбуди`, because one
+lemma holds both. That is the trap `cmd/mavend/quiet_toggle.go` documents for `говори`. It
+is tolerable here and not in the quiet toggle. `isReminderVerb` runs only on an utterance
+already routed to reminder, and it decides where the subject starts. A quiet match flips a
+daemon-wide setting from any channel.

internal/lexicon/lexicon_ru_v1.json

@@ -173,10 +173,11 @@
       ]
     },
     "reminder_verbs": {
-      "note": "The imperatives that mean \"remind me\", in the forms he speaks. The same kind of set as capture_verbs and decided the same way: it is her vocabulary, not a discovery about Russian (Vikunja #530).",
+      "note": "The imperatives that mean \"remind me\", in the forms he speaks. The same kind of set as capture_verbs and decided the same way: it is her vocabulary, not a discovery about Russian (Vikunja #530). The alarm verbs joined them in V-627. \"разбуди меня в 6:30\" is a reminder that fires at the hour he gets up, and the set knew no form of it, so an alarm reached IntentReminder only by resembling one to the embedder.",
       "words": [
         "напомни", "напомните", "напомнить", "напоминай",
-        "remind"
+        "разбуди", "разбудите", "разбудить", "буди",
+        "remind", "wake"
       ]
     },
     "half_hour": {

internal/router/stage0.go

@@ -2,6 +2,7 @@ package router
 
 import (
 	"regexp"
+	"sort"
 	"strings"
 	"unicode"
 
@@ -94,10 +95,41 @@ func DefaultGrammars(actMatcher ActMatcher) []Grammar {
 // stage-0 decision too (fillMatchedSlots in router.go). Before that it did not,
 // so "напомни в 11:00 позвонить маме" reached the daemon with HasTime false and
 // was asked "Когда?" about an hour he had just said.
+//
+// The verb alternation is built from lexicon.ReminderVerbs rather than written
+// out (V-627). The literal here knew "напомни" and "remind me" and nothing
+// else, so "разбуди меня в 6:30" never reached stage 0 — and it does not reach
+// IntentReminder further down either, where the classifier calls it fact at
+// 0.918. An alarm is a reminder that fires at the hour he gets up, and the
+// verb that names one is her vocabulary, so it belongs in the lexicon with the
+// rest of it.
+//
+// Longest-first ordering matters: Go's regexp alternation is leftmost-first,
+// not longest-match, so "напомнить" listed after "напомни" would never match.
+var reminderVerbPattern = regexp.MustCompile(
+	`(?i)^\s*(?:` + longestFirstAlternation(lexicon.ReminderVerbs()) +
+		`)\s*(?:мне|меня|me)?[\s,:]+(.+)$`)
+
+// longestFirstAlternation joins a word set into a regexp alternation, longest
+// alternative first, with every member escaped.
+func longestFirstAlternation(set []string) string {
+	out := make([]string, 0, len(set))
+	for _, w := range set {
+		out = append(out, regexp.QuoteMeta(w))
+	}
+	sort.Slice(out, func(i, j int) bool {
+		if len(out[i]) != len(out[j]) {
+			return len(out[i]) > len(out[j])
+		}
+		return out[i] < out[j]
+	})
+	return strings.Join(out, "|")
+}
+
 func ReminderGrammar() Grammar {
 	return Grammar{
 		Name:    "reminder-wakeword",
-		Pattern: regexp.MustCompile(`(?i)^\s*(?:напомни|remind me)[\s,:]+(.+)$`),
+		Pattern: reminderVerbPattern,
 		Build: func(m []string) (Decision, bool) {
 			rest := strings.TrimSpace(m[1])
 			if rest == "" {