diff --git a/internal/plugin/anime.go b/internal/plugin/anime.go
index c164087..43074a6 100644
--- a/internal/plugin/anime.go
+++ b/internal/plugin/anime.go
@@ -445,7 +445,7 @@ func (p *AnimePlugin) handleUpcoming(ctx MessageContext) error {
 // PostDailyReleases checks broadcast days and DMs watchers about anime airing today.
 // Intended to be called by the scheduler daily.
 func (p *AnimePlugin) PostDailyReleases(roomID id.RoomID) {
-	todayKey := time.Now().UTC().Format("2006-01-02")
+	todayKey := fmt.Sprintf("%s:%s", time.Now().UTC().Format("2006-01-02"), roomID)
 	if db.JobCompleted("anime_releases", todayKey) {
 		slog.Info("anime: already sent daily releases", "date", todayKey)
 		return
diff --git a/internal/plugin/birthday.go b/internal/plugin/birthday.go
index 542fcb1..d0a5b27 100644
--- a/internal/plugin/birthday.go
+++ b/internal/plugin/birthday.go
@@ -260,13 +260,10 @@ func (p *BirthdayPlugin) CheckAndPost(roomID id.RoomID) error {
 	}
 
 	for _, m := range matches {
-		// Check if already fired this year
-		var fired int
-		err := d.QueryRow(
-			`SELECT 1 FROM birthday_fired WHERE user_id = ? AND year = ?`, m.userID, year,
-		).Scan(&fired)
-		if err == nil {
-			continue // Already fired this year
+		// Check if already announced in THIS room this year
+		roomKey := fmt.Sprintf("%s:%d:%s", m.userID, year, roomID)
+		if db.JobCompleted("birthday", roomKey) {
+			continue
 		}
 
 		// Build announcement
@@ -282,6 +279,17 @@ func (p *BirthdayPlugin) CheckAndPost(roomID id.RoomID) error {
 			continue
 		}
 
+		db.MarkJobCompleted("birthday", roomKey)
+
+		// XP grant and DM only once per user per year (not per room)
+		var fired int
+		err := d.QueryRow(
+			`SELECT 1 FROM birthday_fired WHERE user_id = ? AND year = ?`, m.userID, year,
+		).Scan(&fired)
+		if err == nil {
+			continue // Already granted XP and sent DM
+		}
+
 		// Send DM to the birthday person
 		dmMsg := fmt.Sprintf("Happy Birthday! The community wishes you a wonderful day!%s You've been granted 100 bonus XP as a birthday gift!", ageStr)
 		if err := p.SendDM(id.UserID(m.userID), dmMsg); err != nil {
@@ -295,7 +303,7 @@ func (p *BirthdayPlugin) CheckAndPost(roomID id.RoomID) error {
 			p.grantBirthdayXP(id.UserID(m.userID), 100)
 		}
 
-		// Mark as fired
+		// Mark as fired (for XP/DM dedup)
 		_, err = d.Exec(
 			`INSERT INTO birthday_fired (user_id, year) VALUES (?, ?)
 			 ON CONFLICT(user_id, year) DO NOTHING`,
diff --git a/internal/plugin/concerts.go b/internal/plugin/concerts.go
index 3ce99b3..328467f 100644
--- a/internal/plugin/concerts.go
+++ b/internal/plugin/concerts.go
@@ -337,7 +337,7 @@ func (p *ConcertsPlugin) PostWeeklyDigest(roomID id.RoomID) {
 	}
 
 	year, week := time.Now().UTC().ISOWeek()
-	weekKey := fmt.Sprintf("%d-W%02d", year, week)
+	weekKey := fmt.Sprintf("%d-W%02d:%s", year, week, roomID)
 	if db.JobCompleted("concert_digest", weekKey) {
 		slog.Info("concerts: already sent digest this week", "week", weekKey)
 		return
diff --git a/internal/plugin/gaming.go b/internal/plugin/gaming.go
index da450a3..6a1c5d1 100644
--- a/internal/plugin/gaming.go
+++ b/internal/plugin/gaming.go
@@ -91,7 +91,7 @@ func (p *GamingPlugin) PostReleases(roomID id.RoomID) error {
 	// Check if already posted this week
 	now := time.Now().UTC()
 	year, week := now.ISOWeek()
-	weekKey := fmt.Sprintf("%d-W%02d", year, week)
+	weekKey := fmt.Sprintf("%d-W%02d:%s", year, week, roomID)
 	if db.JobCompleted("releases", weekKey) {
 		slog.Info("gaming: already posted releases this week", "week", weekKey)
 		return nil
diff --git a/internal/plugin/holidays.go b/internal/plugin/holidays.go
index 2619f81..d34e45c 100644
--- a/internal/plugin/holidays.go
+++ b/internal/plugin/holidays.go
@@ -203,19 +203,25 @@ func (p *HolidaysPlugin) PostHolidays(roomID id.RoomID) error {
 	today := time.Now().UTC().Format("2006-01-02")
 	d := db.Get()
 
+	// Per-room dedup
+	roomKey := fmt.Sprintf("%s:%s", today, roomID)
+	if db.JobCompleted("holidays", roomKey) {
+		slog.Info("holidays: already posted today", "date", today, "room", roomID)
+		return nil
+	}
+
 	var dataStr string
-	var posted int
 	err := d.QueryRow(
-		`SELECT data, posted FROM holidays_log WHERE date = ?`, today,
-	).Scan(&dataStr, &posted)
+		`SELECT data FROM holidays_log WHERE date = ?`, today,
+	).Scan(&dataStr)
 	if err == sql.ErrNoRows {
 		slog.Warn("holidays: no entry for today, attempting prefetch", "date", today)
 		if err := p.Prefetch(); err != nil {
 			return fmt.Errorf("holidays: prefetch failed: %w", err)
 		}
 		err = d.QueryRow(
-			`SELECT data, posted FROM holidays_log WHERE date = ?`, today,
-		).Scan(&dataStr, &posted)
+			`SELECT data FROM holidays_log WHERE date = ?`, today,
+		).Scan(&dataStr)
 		if err != nil {
 			return fmt.Errorf("holidays: still no entry after prefetch: %w", err)
 		}
@@ -223,11 +229,6 @@ func (p *HolidaysPlugin) PostHolidays(roomID id.RoomID) error {
 		return fmt.Errorf("holidays: query: %w", err)
 	}
 
-	if posted == 1 {
-		slog.Info("holidays: already posted today", "date", today)
-		return nil
-	}
-
 	var data holidaysDayData
 	if err := json.Unmarshal([]byte(dataStr), &data); err != nil {
 		return fmt.Errorf("holidays: unmarshal: %w", err)
@@ -243,10 +244,7 @@ func (p *HolidaysPlugin) PostHolidays(roomID id.RoomID) error {
 		return fmt.Errorf("holidays: send: %w", err)
 	}
 
-	_, err = d.Exec(`UPDATE holidays_log SET posted = 1 WHERE date = ?`, today)
-	if err != nil {
-		slog.Error("holidays: mark posted", "err", err)
-	}
+	db.MarkJobCompleted("holidays", roomKey)
 
 	return nil
 }
diff --git a/internal/plugin/movies.go b/internal/plugin/movies.go
index 01c588f..cee8799 100644
--- a/internal/plugin/movies.go
+++ b/internal/plugin/movies.go
@@ -558,14 +558,15 @@ func (p *MoviesPlugin) PostDailyReleases(roomID id.RoomID) {
 	}
 
 	today := time.Now().UTC().Format("2006-01-02")
-	if db.JobCompleted("movie_releases", today) {
-		slog.Info("movies: already sent daily releases", "date", today)
+	todayKey := fmt.Sprintf("%s:%s", today, roomID)
+	if db.JobCompleted("movie_releases", todayKey) {
+		slog.Info("movies: already sent daily releases", "date", todayKey)
 		return
 	}
 	success := false
 	defer func() {
 		if success {
-			db.MarkJobCompleted("movie_releases", today)
+			db.MarkJobCompleted("movie_releases", todayKey)
 		}
 	}()
 
diff --git a/internal/plugin/wotd.go b/internal/plugin/wotd.go
index bd8bbc0..2809e4e 100644
--- a/internal/plugin/wotd.go
+++ b/internal/plugin/wotd.go
@@ -148,19 +148,25 @@ func (p *WOTDPlugin) PostWOTD(roomID id.RoomID) error {
 	today := time.Now().UTC().Format("2006-01-02")
 	d := db.Get()
 
+	// Per-room dedup
+	roomKey := fmt.Sprintf("%s:%s", today, roomID)
+	if db.JobCompleted("wotd", roomKey) {
+		slog.Info("wotd: already posted today", "date", today, "room", roomID)
+		return nil
+	}
+
 	var word, definition, partOfSpeech, example string
-	var posted int
 	err := d.QueryRow(
-		`SELECT word, definition, part_of_speech, example, posted FROM wotd_log WHERE date = ?`, today,
-	).Scan(&word, &definition, &partOfSpeech, &example, &posted)
+		`SELECT word, definition, part_of_speech, example FROM wotd_log WHERE date = ?`, today,
+	).Scan(&word, &definition, &partOfSpeech, &example)
 	if err == sql.ErrNoRows {
 		slog.Warn("wotd: no entry for today, attempting prefetch", "date", today)
 		if err := p.Prefetch(); err != nil {
 			return fmt.Errorf("wotd: prefetch failed: %w", err)
 		}
 		err = d.QueryRow(
-			`SELECT word, definition, part_of_speech, example, posted FROM wotd_log WHERE date = ?`, today,
-		).Scan(&word, &definition, &partOfSpeech, &example, &posted)
+			`SELECT word, definition, part_of_speech, example FROM wotd_log WHERE date = ?`, today,
+		).Scan(&word, &definition, &partOfSpeech, &example)
 		if err != nil {
 			return fmt.Errorf("wotd: still no entry after prefetch: %w", err)
 		}
@@ -168,20 +174,12 @@ func (p *WOTDPlugin) PostWOTD(roomID id.RoomID) error {
 		return fmt.Errorf("wotd: query: %w", err)
 	}
 
-	if posted == 1 {
-		slog.Info("wotd: already posted today", "date", today)
-		return nil
-	}
-
 	msg := p.formatWOTD(word, definition, partOfSpeech, example)
 	if err := p.SendMessage(roomID, msg); err != nil {
 		return fmt.Errorf("wotd: send message: %w", err)
 	}
 
-	_, err = d.Exec(`UPDATE wotd_log SET posted = 1 WHERE date = ?`, today)
-	if err != nil {
-		slog.Error("wotd: mark posted", "err", err)
-	}
+	db.MarkJobCompleted("wotd", roomKey)
 
 	return nil
 }