Merge the feed topic seeds (#178)

cmd/mavend/actions_query.go

@@ -292,6 +292,14 @@ const (
 	feedReadOut    = 3
 )
 
+// feedFloor — the keyword test behind topicFeed, in the one-string shape
+// turnIsAbout takes. router.ParseFeedQuery returns the category too, which the
+// gate has no use for; the caller reads it separately.
+func feedFloor(u string) bool {
+	_, ok := router.ParseFeedQuery(u)
+	return ok
+}
+
 // queryFeeds — "что нового в лентах?", "что нового по технологиям?"
 // (Vikunja #258).
 //
@@ -299,10 +307,13 @@ const (
 // never speaks; asking is the trigger. If that ever changes, the thing that
 // changed is "Maven is not a nag", not a detail of this file.
 func (h *reactiveHandler) queryFeeds(ctx context.Context, t *queryTurn) (string, bool) {
-	q, ok := router.ParseFeedQuery(t.dec.Utterance)
+	// The seeds decide the subject; router.ParseFeedQuery is the floor behind
-	if !ok {
+	// them (V-522). The category still comes from the utterance either way,
+	// because a topic is marked by a preposition and needs no recogniser.
+	if !h.turnIsAbout(ctx, t, topicFeed, feedFloor) {
 		return "", false
 	}
+	category := router.FeedCategoryOf(t.dec.Utterance)
 	if !h.feedsOn {
 		// Claim only when nothing below can read the world. The reason this
 		// source used to claim unconditionally was that general knowledge would
@@ -327,7 +338,7 @@ func (h *reactiveHandler) queryFeeds(ctx context.Context, t *queryTurn) (string,
 	}
 	var picked []string
 	for _, n := range notes {
-		if !router.CategoryMatches(rss.NoteCategory(n.Text), q.Category) {
+		if !router.CategoryMatches(rss.NoteCategory(n.Text), category) {
 			continue
 		}
 		// The note carries title, summary, category tag and link; she reads the
@@ -339,7 +350,7 @@ func (h *reactiveHandler) queryFeeds(ctx context.Context, t *queryTurn) (string,
 		}
 	}
 	if len(picked) == 0 {
-		if q.Category != "" {
+		if category != "" {
 			return phraser.Q(phraser.QueryFeedsTopic, nil), true
 		}
 		return phraser.Q(phraser.QueryFeedsEmpty, nil), true

cmd/mavend/topics.go

@@ -9,7 +9,7 @@ import (
 )
 
 // Which subject is this question about — the weather, the house, the LAN, what
-// needs looking at, or none of them. Third of the three mechanisms replacing hand-written Russian
+// needs looking at, his feeds, or none of them. Third of the three mechanisms replacing hand-written Russian
 // patterns (Vikunja #522, owner's call 2026-08-04). internal/lexicon holds the
 // sets that can be finished and internal/morph answers the grammar questions;
 // this is for the sets that can never be finished, because "is this about the
@@ -37,6 +37,11 @@ import (
 // внимания", which is Praxis's operational state and reached the web search
 // before the source existed (Vikunja #475).
 //
+// A fifth joined on 05-08-2026: the feeds, "что нового в лентах". Its word lists
+// were the last pair of hand-written Russian stem lists in the router (V-522),
+// and they carried the same admission in their own comments — vagueNouns exists
+// because "что нового?" is a greeting that matched a feed noun.
+//
 // The regexes stay as the offline floor, unchanged, for a handler with no
 // embedder or a turn whose vector never got computed. They are allowed to remain
 // narrow now precisely because they are no longer the only answer.
@@ -52,6 +57,7 @@ const (
 	topicHome    topicLabel = "home"
 	topicNetwork topicLabel = "network"
 	topicAttend  topicLabel = "attention"
+	topicFeed    topicLabel = "feeds"
 	topicOther   topicLabel = "other"
 )
 
@@ -117,7 +123,30 @@ var topicSeedSets = map[topicLabel][]string{
 		"what needs attention",
 		"what needs looking at right now",
 	},
+	topicFeed: {
+		"что нового в лентах",
+		"какие новости",
+		"что нового по технологиям",
+		"почитай заголовки",
+		// Two seeds carrying a day word beside the headlines. Without them
+		// "какие сегодня заголовки" read as weather, because "какая сегодня
+		// погода" is the nearest thing in the whole set with "сегодня" in it.
+		"заголовки за сегодня",
+		"какие главные новости за день",
+		"покажи новости за сегодня",
+		"что пишут в новостях",
+		"что нового про политику",
+		"расскажи что нового в ленте",
+		"what is new in the feeds",
+		"any news headlines today",
+	},
 	topicOther: {
+		// The bare newness opener, which is a greeting and not a request for
+		// headlines. It sits here on purpose: it is close enough to the feed
+		// seeds that it will not clear topicMargin, and a thin call goes to
+		// ParseFeedQuery, which declines a vague noun with no topic beside it.
+		"что нового",
+		"как дела",
 		// Complaints, which are not requests to scan or to read the house.
 		// isNetworkQuery's comment names this one: a scan she runs unasked is
 		// the noisy behaviour the bounds exist to prevent.

cmd/mavend/topics_test.go

@@ -25,6 +25,7 @@ func TestTopicFloorAnswersWithoutSeeds(t *testing.T) {
 		{"что включено в доме?", topicHome, isHomeQuery, true},
 		{"какие устройства в сети?", topicNetwork, isNetworkQuery, true},
 		{"что требует внимания?", topicAttend, isAttentionQuery, true},
+		{"что нового в лентах?", topicFeed, feedFloor, true},
 		{"почему небо синее", topicWeather, isWeatherQuery, false},
 		{"я дома", topicHome, isHomeQuery, false},
 		{"интернет не работает", topicNetwork, isNetworkQuery, false},
@@ -86,6 +87,12 @@ func TestONNXTopics(t *testing.T) {
 		{"что требует моего внимания сейчас", topicAttend, isAttentionQuery},
 		{"что не так с базой данных", topicAttend, isAttentionQuery},
 		{"есть что-то срочное на сегодня", topicAttend, isAttentionQuery},
+		{"что нового в ленте за сегодня", topicFeed, feedFloor},
+		{"какие сегодня заголовки", topicFeed, feedFloor},
+		{"что нового про искусственный интеллект", topicFeed, feedFloor},
+		// The greeting. It has to lose to topicOther, or fall thin enough that
+		// ParseFeedQuery — which declines a vague noun with no topic — answers.
+		{"что нового?", topicOther, feedFloor},
 	}
 
 	h := &reactiveHandler{recall: recallWiring{embedder: emb}}

internal/router/feeds.go

@@ -5,10 +5,16 @@ import "strings"
 // Feed queries — "что нового в лентах?", "что нового по технологиям?"
 // (Vikunja #258).
 //
-// Deterministic matching, like the calendar, plan and habit matchers above it:
+// This file is the OFFLINE FLOOR as of 05-08-2026 (V-522). Whether a turn is
-// the LLM router says this is a query, and this decides whether it is a question
+// about the feeds is a question about meaning, so the frozen seeds decide it —
-// about the feeds. A model deciding that would occasionally answer "что нового?"
+// topicFeed in cmd/mavend/topics.go, through turnIsAbout. The word lists below
-// out of world knowledge, which is the one thing a feed reader exists to avoid.
+// stay because they always answer: a box with no embedder, a turn whose vector
+// never got computed, and any call that does not clear topicMargin. They are
+// allowed to stay narrow now that they are not the only answer.
+//
+// What has not changed is that no generative model decides this. One would
+// occasionally answer "что нового?" out of world knowledge, which is the one
+// thing a feed reader exists to avoid.
 
 // FeedQuery — a parsed "what's new" question. Category is the topic he named
 // ("технологии"), empty when he asked about the feeds in general.
@@ -95,6 +101,13 @@ func ParseFeedQuery(text string) (FeedQuery, bool) {
 // cannot be mistaken for anything else.
 var categoryPreps = map[string]bool{"по": true, "об": true, "про": true, "about": true, "on": true}
 
+// FeedCategoryOf reads the topic out of an utterance without deciding whether the
+// turn is a feed question at all. The seeds answer that now (topicFeed in
+// cmd/mavend/topics.go, V-522), and they answer it for phrasings the word lists
+// here never held — but a claimed turn still needs its category, and a category
+// is marked by a preposition rather than recognised.
+func FeedCategoryOf(text string) string { return feedCategory(planTokens(text)) }
+
 func feedCategory(toks []string) string {
 	for i, t := range toks {
 		if categoryPreps[t] && i+1 < len(toks) {