diff --git a/docs b/docs
index fe29cfb..b6d08c0 160000
--- a/docs
+++ b/docs
@@ -1 +1 @@
-Subproject commit fe29cfb3cc46382c6a2803f3cc9d7c3051ab5368
+Subproject commit b6d08c0964853a795979c2a2be941254ac4ab39d
diff --git a/web/app/dashboard/ai-workflows/_components/flowgram-editor-provider.tsx b/web/app/dashboard/ai-workflows/_components/flowgram-editor-provider.tsx
index a1d0a50..70f6493 100644
--- a/web/app/dashboard/ai-workflows/_components/flowgram-editor-provider.tsx
+++ b/web/app/dashboard/ai-workflows/_components/flowgram-editor-provider.tsx
@@ -64,7 +64,7 @@ export function useFlowgramEditorProps({
         },
         canDeleteNode: (_ctx, node) => {
           const type = String(node.flowNodeType ?? "")
-          return type !== "start" && type !== "end"
+          return type !== "start"
         },
         canDeleteLine: () => !readonly,
         onContentChange: (ctx) => {
diff --git a/web/app/dashboard/ai-workflows/_components/flowgram-node-registries.tsx b/web/app/dashboard/ai-workflows/_components/flowgram-node-registries.tsx
index e4bfc2f..1a136e7 100644
--- a/web/app/dashboard/ai-workflows/_components/flowgram-node-registries.tsx
+++ b/web/app/dashboard/ai-workflows/_components/flowgram-node-registries.tsx
@@ -42,8 +42,8 @@ export function buildFlowgramNodeRegistries(nodeSpecs: AIWorkflowNodeSpec[]): Wo
       meta: {
         defaultExpanded: true,
         isStart: spec.type === "start",
-        deleteDisable: spec.type === "start" || spec.type === "end",
-        copyDisable: spec.type === "start" || spec.type === "end",
+        deleteDisable: spec.type === "start",
+        copyDisable: spec.type === "start",
         defaultPorts: defaultPortsForNodeType(spec.type),
       },
       formMeta: {
diff --git a/web/app/dashboard/ai-workflows/_components/workflow-editor.tsx b/web/app/dashboard/ai-workflows/_components/workflow-editor.tsx
index 605dd74..6f7c5f9 100644
--- a/web/app/dashboard/ai-workflows/_components/workflow-editor.tsx
+++ b/web/app/dashboard/ai-workflows/_components/workflow-editor.tsx
@@ -208,7 +208,9 @@ function WorkflowEditorInner({
 
   useEffect(() => {
     const disposable = selectService.onSelectionChanged(() => {
-      const selectedNode = selectService.selectedNodes[0]
+      const selectedNode = selectService.selectedNodes.length === 1
+        ? selectService.selectedNodes[0]
+        : null
       onSelectNode(selectedNode?.id ?? "")
     })
     return () => disposable.dispose()
diff --git a/web/app/dashboard/ai-workflows/_components/workflow-utils.test.mjs b/web/app/dashboard/ai-workflows/_components/workflow-utils.test.mjs
index 10f4847..c46b4f4 100644
--- a/web/app/dashboard/ai-workflows/_components/workflow-utils.test.mjs
+++ b/web/app/dashboard/ai-workflows/_components/workflow-utils.test.mjs
@@ -252,7 +252,7 @@ describe("workflow definition mutations", () => {
     })
   })
 
-  it("deletes normal nodes and related edges while keeping start and end protected", async () => {
+  it("deletes non-start nodes and related edges while keeping start protected", async () => {
     const { deleteWorkflowNode } = await loadModule()
     const definition = {
       schemaVersion: 2,
@@ -270,6 +270,10 @@ describe("workflow definition mutations", () => {
 
     const protectedDefinition = deleteWorkflowNode(definition, "start_1")
     assert.deepEqual(protectedDefinition, definition)
+
+    const withoutEnd = deleteWorkflowNode(definition, "end_1")
+    assert.deepEqual(withoutEnd.nodes.map((node) => node.id), ["start_1", "reply_1"])
+    assert.deepEqual(withoutEnd.edges, [workflowEdge("start_1", "reply_1")])
   })
 
   it("upserts and deletes condition branches in node config", async () => {
diff --git a/web/app/dashboard/ai-workflows/_components/workflow-utils.ts b/web/app/dashboard/ai-workflows/_components/workflow-utils.ts
index 3894e3a..7d0ffb3 100644
--- a/web/app/dashboard/ai-workflows/_components/workflow-utils.ts
+++ b/web/app/dashboard/ai-workflows/_components/workflow-utils.ts
@@ -199,7 +199,7 @@ export function deleteWorkflowNode(
   nodeId: string
 ): AIWorkflowDefinition {
   const node = definition.nodes.find((item) => item.id === nodeId)
-  if (!node || node.type === "start" || node.type === "end") {
+  if (!node || node.type === "start") {
     return definition
   }
   return {