diff --git a/FS25_ADSmartPickup/adChainActions.lua b/FS25_ADSmartPickup/adChainActions.lua
new file mode 100644
index 0000000..03977c7
--- /dev/null
+++ b/FS25_ADSmartPickup/adChainActions.lua
@@ -0,0 +1,65 @@
+-- AD Chain Actions (ren logik): mellemled der skal tændes/slukkes, flows der mangler eller skal stoppes.
+
+ADChainActions = {}
+
+function ADChainActions.productions(recipes, needRecipes, anyPaused)
+    local result = {enable = {}, disable = {}}
+    for _, recipe in ipairs(recipes or {}) do
+        local needed = ((needRecipes or {})[recipe.key] or 0) > 0
+        if needed and not recipe.enabled then table.insert(result.enable, recipe.key) end
+        if not needed and recipe.enabled and recipe.byChain and not anyPaused then table.insert(result.disable, recipe.key) end
+    end
+    table.sort(result.enable); table.sort(result.disable)
+    return result
+end
+
+local SUPPLIED = {production = true, husbandry = true, field = true}
+
+function ADChainActions.edges(chain)
+    local list, seen = {}, {}
+    local function walk(nodes, rootKey)
+        for _, node in ipairs(nodes or {}) do
+            local id = tostring(node.consumer) .. "|" .. tostring(node.fillType)
+            if SUPPLIED[node.source] and node.consumer ~= nil and not seen[id] then
+                seen[id] = true
+                table.insert(list, {fillType = node.fillType, consumer = node.consumer, consumerName = node.consumerName, rootKey = rootKey})
+            end
+            walk(node.children, rootKey)
+        end
+    end
+    for _, root in ipairs((chain or {}).roots or {}) do walk(root.children, root.key) end
+    return list
+end
+
+local function contains(list, value)
+    for _, item in ipairs(list or {}) do if item == value then return true end end
+    return false
+end
+
+function ADChainActions.isCovered(edge, runs)
+    for _, run in ipairs(runs or {}) do
+        if run.kind == "supply" and contains(run.targetBuildingIds, edge.consumer)
+            and (run.ingredientMode ~= "manual" or contains(run.ingredients, edge.fillType)) then
+            return true
+        end
+    end
+    return false
+end
+
+function ADChainActions.missingFlows(edges, runs)
+    local list = {}
+    for _, edge in ipairs(edges or {}) do
+        if not ADChainActions.isCovered(edge, runs) then table.insert(list, edge) end
+    end
+    return list
+end
+
+function ADChainActions.flowsToStop(runs, activeRootKeys)
+    local list = {}
+    for _, run in ipairs(runs or {}) do
+        if run.chain ~= nil and run.chain ~= "" and not run.stopped and not (activeRootKeys or {})[run.chain] then
+            table.insert(list, run)
+        end
+    end
+    return list
+end
diff --git a/FS25_ADSmartPickup/modDesc.xml b/FS25_ADSmartPickup/modDesc.xml
index 664eb7a..e6f60ba 100644
--- a/FS25_ADSmartPickup/modDesc.xml
+++ b/FS25_ADSmartPickup/modDesc.xml
@@ -57,6 +57,7 @@
         <sourceFile filename="adProfiler.lua"/>
         <sourceFile filename="adChainModel.lua"/>
         <sourceFile filename="adCropPlan.lua"/>
+        <sourceFile filename="adChainActions.lua"/>
         <sourceFile filename="adSmartPickup.lua"/>
     </extraSourceFiles>
 </modDesc>