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diff --git a/scripts/.claude/ct-remove-mock-tidal.yaml b/scripts/.claude/ct-remove-mock-tidal.yaml
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+name: "Remove MockTidalCurrentGenerator"
+description: "LocationService generates random fake tidal current arrows near a hardcoded Solent coordinate (50.8, -1.3) every 60 seconds regardless of boat position. Remove the mock generator; leave the layer empty until a real tidal API is integrated."
+agent:
+  model: "sonnet"
+  working_dir: "/workspace/nav"
+  instructions: |
+    Context
+    -------
+    In LocationService.onCreate() there is a coroutine loop:
+        (android-app/app/src/main/kotlin/org/terst/nav/LocationService.kt, lines ~113-119)
+
+        serviceScope.launch {
+            while (true) {
+                val currents = MockTidalCurrentGenerator.generateMockCurrents()
+                _tidalCurrentState.update { it.copy(currents = currents) }
+                kotlinx.coroutines.delay(60000)
+            }
+        }
+
+    MockTidalCurrentGenerator.generateMockCurrents() produces 10 TidalCurrent objects with:
+        - Random speedKnots (0–5 kn)
+        - Random directionDegrees (0–360°)
+        - Positions scattered within 0.05° of lat=50.8, lon=-1.3 (Solent, UK)
+    regardless of actual boat position.
+        (android-app/app/src/main/kotlin/org/terst/nav/MockTidalCurrentGenerator.kt)
+
+    TidalCurrentState has an isVisible flag (defaults false) and a currents list.
+    MapHandler.updateTidalCurrents() respects isVisible — when false it clears the layer.
+
+    Goal
+    ----
+    1. Remove the mock generator loop from LocationService.onCreate()
+    2. Delete MockTidalCurrentGenerator.kt
+    3. Ensure _tidalCurrentState starts with isVisible=false and empty currents (the default)
+    4. Remove the import of MockTidalCurrentGenerator from LocationService
+
+    Do NOT remove TidalCurrentState, _tidalCurrentState, or the tidalCurrentState public flow —
+    those are needed when a real tidal API is added later.
+    Do NOT remove ACTION_TOGGLE_TIDAL_VISIBILITY handling in onStartCommand — keep the
+    visibility toggle working for future use.
+
+    Step 1 — Remove the mock loop from LocationService
+    ---------------------------------------------------
+    In android-app/app/src/main/kotlin/org/terst/nav/LocationService.kt:
+
+    Delete the entire block (including the comment):
+        // Mock tidal current data generator
+        serviceScope.launch {
+            while (true) {
+                val currents = MockTidalCurrentGenerator.generateMockCurrents()
+                _tidalCurrentState.update { it.copy(currents = currents) }
+                kotlinx.coroutines.delay(60000) // Update every minute
+            }
+        }
+
+    Remove the import:
+        import org.terst.nav.MockTidalCurrentGenerator
+
+    Step 2 — Delete MockTidalCurrentGenerator.kt
+    ---------------------------------------------
+    Delete android-app/app/src/main/kotlin/org/terst/nav/MockTidalCurrentGenerator.kt
+
+    Step 3 — Build
+    --------------
+    cd android-app && ANDROID_HOME=/opt/android-sdk ./gradlew assembleDebug 2>&1 | tail -5
+    Confirm BUILD SUCCESSFUL with no references to MockTidalCurrentGenerator remaining.
+
+    Step 4 — Commit and push
+    ------------------------
+    git add -A
+    git commit -m "chore: remove MockTidalCurrentGenerator
+
+    The mock generator was producing 10 random tidal current arrows near a
+    hardcoded Solent coordinate (50.8, -1.3) every 60 seconds regardless of
+    boat position. Remove it entirely. The tidal overlay infrastructure
+    (TidalCurrentState, mapHandler.updateTidalCurrents) is retained for when
+    a real tidal current API is integrated."
+    git push github main && git push local main
+timeout: "15m"
+tags:
+  - "cleanup"
+  - "tidal"
+  - "mock-data"