diff --git a/tests/vault/gear/activity-detector-test.cpp b/tests/vault/gear/activity-detector-test.cpp
index 7ee3b0ed7..0d64687cd 100644
--- a/tests/vault/gear/activity-detector-test.cpp
+++ b/tests/vault/gear/activity-detector-test.cpp
@@ -296,7 +296,7 @@ namespace test {
       
       
       /** @test inject (prepend) an ActivationTap into existing wiring
-       * @todo WIP 8/23 ✔ define 🔁 implement
+       * @todo WIP 8/23 ✔ define ✔ implement
        */
       void
       insert_ActivationTap()
@@ -337,11 +337,24 @@ namespace test {
       
       
       /** @test TODO diagnostic setup to watch Activity::GATE activation
-       * @todo WIP 7/23 ⟶ define ⟶ implement
+       * @todo WIP 7/23 🔁 define ⟶ implement
        */
       void
       watch_gate()
         {
+          ActivityDetector detector;
+          
+          Activity gate{0};
+          Activity followUp;
+          gate.next = &followUp;
+          
+          Activity* wiring = &gate;
+          detector.watchGate (wiring);
+          
+          Time tt{5,5};
+          wiring->activate(tt, detector.executionCtx);
+          
+          cout<<detector.showLog()<<endl;
         }
     };
   
diff --git a/tests/vault/gear/activity-detector.hpp b/tests/vault/gear/activity-detector.hpp
index 39915baf0..1ec565dfe 100644
--- a/tests/vault/gear/activity-detector.hpp
+++ b/tests/vault/gear/activity-detector.hpp
@@ -502,6 +502,22 @@ namespace test {
           return *wiring;
         }
       
+      Activity&
+      buildGateWatcher (Activity& gate)
+        {
+          Activity& watcher = buildActivationTap (gate);
+          insertActivationTap (gate.next, "after"+gate.showVerb()+util::showAddr(gate));
+          return watcher;
+        }
+      
+      Activity&
+      watchGate (Activity*& wiring)
+        {
+          wiring = wiring? & buildGateWatcher (*wiring)
+                         : & buildActivationProbe ("tail-"+util::showAddr(&wiring));
+          return *wiring;
+        }
+      
       
       struct FakeExecutionCtx;
       using SIG_post = activity::Proc(Time, Activity&, FakeExecutionCtx&);
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index d68475ce0..0b3d24fbf 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -82282,15 +82282,18 @@ Date:&#160;&#160;&#160;Thu Apr 20 18:53:17 2023 +0200<br/>
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1689205423173" ID="ID_935068564" MODIFIED="1689205426133" TEXT="watchGate">
-<icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#eef0c5" COLOR="#990000" CREATED="1689205423173" ID="ID_935068564" MODIFIED="1692487675023" TEXT="watchGate">
+<icon BUILTIN="pencil"/>
 <node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1692485210898" ID="ID_1284233307" MODIFIED="1692485224634" TEXT="komplexe Aufgabe">
 <icon BUILTIN="messagebox_warning"/>
 <node CREATED="1692485226036" ID="ID_1556332540" MODIFIED="1692485237497" TEXT="das Gate bietet eigentlich keine Erweiterungspunkte"/>
 <node CREATED="1692485238133" ID="ID_904790600" MODIFIED="1692485265925" TEXT="zudem m&#xfc;ssen mehrere Ein/Ausg&#xe4;nge &#xfc;berwacht werden"/>
-</node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1692485300157" ID="ID_1563739402" MODIFIED="1692485367133" TEXT="ActivityProbe vorschalten">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1692487689444" ID="ID_1980202996" MODIFIED="1692487705987" TEXT="sinnvolle IDs f&#xfc;r die Verifikation erzeugen">
 <icon BUILTIN="flag-yellow"/>
+</node>
+</node>
+<node COLOR="#338800" CREATED="1692485300157" ID="ID_1563739402" MODIFIED="1692487715332" TEXT="ActivityProbe vorschalten">
+<icon BUILTIN="button_ok"/>
 <node CREATED="1692485311859" ID="ID_1216045769" MODIFIED="1692485364424" TEXT="diese kann Aktivierung aufzeichnen">
 <icon BUILTIN="idea"/>
 </node>
@@ -82298,6 +82301,13 @@ Date:&#160;&#160;&#160;Thu Apr 20 18:53:17 2023 +0200<br/>
 <icon BUILTIN="flag-yellow"/>
 </node>
 </node>
+<node COLOR="#338800" CREATED="1692485417998" ID="ID_856616436" MODIFIED="1692487971912" TEXT="zudem Probe auf den next-Ptr legen">
+<icon BUILTIN="button_ok"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1692485434421" ID="ID_1307528934" MODIFIED="1692487980102" TEXT="passende ID hierf&#xfc;r vergeben">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node CREATED="1692485443450" ID="ID_577582748" MODIFIED="1692485453069" TEXT="damit wird &#xfc;berpr&#xfc;fbar, wenn das Gate &quot;feuert&quot;"/>
+</node>
 </node>
 </node>
 </node>