diff --git a/hooks/design-toolchain-reminder.sh b/hooks/design-toolchain-reminder.sh
index b69bc9e..a43be4d 100755
--- a/hooks/design-toolchain-reminder.sh
+++ b/hooks/design-toolchain-reminder.sh
@@ -25,6 +25,12 @@ prompt="$(printf '%s' "$input" \
   2>/dev/null || true)"
 [ -z "$prompt" ] && prompt="$input"
 
+# Harness-generated turns (subagent/task notifications) are not user
+# requests — never fire on them (CLAUDE.md trigger = a design/UI *request*).
+case "$prompt" in
+  '<task-notification>'*) exit 0 ;;
+esac
+
 lc="$(printf '%s' "$prompt" | tr '[:upper:]' '[:lower:]')"
 
 # UI/design build and review signals (FR + EN). Word boundaries (\b) avoid
diff --git a/lib/tests/design-toolchain-reminder.test.sh b/lib/tests/design-toolchain-reminder.test.sh
index a7d59a1..959882f 100644
--- a/lib/tests/design-toolchain-reminder.test.sh
+++ b/lib/tests/design-toolchain-reminder.test.sh
@@ -6,7 +6,7 @@ pass=0; fail=0
 check() { if [ "$2" = "$3" ]; then pass=$((pass+1)); else fail=$((fail+1));
   printf 'FAIL %s: got[%s] want[%s]\n' "$1" "$2" "$3"; fi; }
 # fire() -> "fire" if the hook emits the reminder, else "quiet".
-fire() { if printf '{"prompt":"%s"}' "$1" | bash "$H" | grep -q "design-toolchain"; then
+fire() { if printf '{"prompt":"%s"}' "$1" | bash "$H" | grep -q 'full toolchain'; then
   echo fire; else echo quiet; fi; }
 
 # --- Dropped/neutralized tokens must be QUIET (non-UI senses) ---
@@ -19,6 +19,10 @@ check D6-frontend    "$(fire 'frontend architecture')"         quiet
 check D7-palette     "$(fire 'a palette of options')"          quiet
 check D8-dash-file   "$(fire 'ecc_dashboard.py')"              quiet
 
+# --- Harness-generated inputs must be QUIET even with UI tokens ---
+check D9-tasknotif   "$(fire '<task-notification> <task-id>x</task-id> add css header fonts')" quiet
+check D10-notif-file "$(fire '<task-notification> design-motion-principles keyframe done')"    quiet
+
 # --- Real UI signals must still FIRE ---
 check F1-button      "$(fire 'add a button')"            fire
 check F2-navbar      "$(fire 'the navbar layout')"       fire