chore: update all changes

.env

@@ -2,3 +2,9 @@ GA_MEASUREMENT_ID=G-NZW1X7RXTD
 GA_API_SECRET=cw05MUKjSWWlZ_NMf8n0Fw
 _AUTOCOMPLETE_API=https://anything-copilot.alib.workers.dev/v1/tab/completion
 AUTOCOMPLETE_API=http://localhost:8000/v1/tab/completion
+
+# n8n Configuration
+N8N_API_URL=https://vuhoanganh1704.app.n8n.cloud
+N8N_API_KEY=bgb
+MCP_AUTH_TOKEN=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiI5MDg3MjUyMS1lMWU0LTQyOGItOGJkYi02Y2Y4MTZhM2QxYTkiLCJpc3MiOiJuOG4iLCJhdWQiOiJtY3Atc2VydmVyLWFwaSIsImp0aSI6ImUxNTRmOTU5LTdiZWItNDc0Ny1iZjQ2LTcxZDI5OGMxODNiMyIsImlhdCI6MTc3NzQ0MjQ2M30.Ll2wmRMUB0p3JtIMMSIVtrGVRvTWoNqVfWMSapC9xkA
+MCP_PORT=3006

.tmp/test-user-data-2/Default/Local Storage/leveldb/CURRENT

+MANIFEST-000001

.tmp/test-user-data-2/Default/Local Storage/leveldb/LOG

+2026/04/29-11:42:37.489 610c Creating DB D:\cnf\n8n_ai_agent\.tmp\test-user-data-2\Default\Local Storage\leveldb since it was missing.
+2026/04/29-11:42:37.512 610c Reusing MANIFEST D:\cnf\n8n_ai_agent\.tmp\test-user-data-2\Default\Local Storage\leveldb/MANIFEST-000001

.tmp/test-user-data-2/Default/Session Storage/CURRENT

+MANIFEST-000001

.tmp/test-user-data-2/Default/Session Storage/LOG

+2026/04/29-11:42:38.601 610c Creating DB D:\cnf\n8n_ai_agent\.tmp\test-user-data-2\Default\Session Storage since it was missing.
+2026/04/29-11:42:38.612 610c Reusing MANIFEST D:\cnf\n8n_ai_agent\.tmp\test-user-data-2\Default\Session Storage/MANIFEST-000001

.tmp/test-user-data-2/Default/shared_proto_db/CURRENT

+MANIFEST-000001

.tmp/test-user-data-2/Default/shared_proto_db/LOG

+2026/04/29-11:42:37.590 4894 Creating DB D:\cnf\n8n_ai_agent\.tmp\test-user-data-2\Default\shared_proto_db since it was missing.
+2026/04/29-11:42:37.602 4894 Reusing MANIFEST D:\cnf\n8n_ai_agent\.tmp\test-user-data-2\Default\shared_proto_db/MANIFEST-000001

.tmp/test-user-data-2/Default/shared_proto_db/metadata/CURRENT

+MANIFEST-000001

.tmp/test-user-data-2/Default/shared_proto_db/metadata/LOG

+2026/04/29-11:42:37.521 4894 Creating DB D:\cnf\n8n_ai_agent\.tmp\test-user-data-2\Default\shared_proto_db\metadata since it was missing.
+2026/04/29-11:42:37.535 4894 Reusing MANIFEST D:\cnf\n8n_ai_agent\.tmp\test-user-data-2\Default\shared_proto_db\metadata/MANIFEST-000001

.tmp/test-user-data/Default/Local Storage/leveldb/CURRENT

+MANIFEST-000001

.tmp/test-user-data/Default/Local Storage/leveldb/LOG

+2026/04/29-11:37:15.538 6a70 Reusing MANIFEST D:\cnf\n8n_ai_agent\.tmp\test-user-data\Default\Local Storage\leveldb/MANIFEST-000001
+2026/04/29-11:37:15.544 6a70 Recovering log #3
+2026/04/29-11:37:15.545 6a70 Reusing old log D:\cnf\n8n_ai_agent\.tmp\test-user-data\Default\Local Storage\leveldb/000003.log 

.tmp/test-user-data/Default/Local Storage/leveldb/LOG.old

+2026/04/29-11:13:37.267 66a8 Reusing MANIFEST D:\cnf\n8n_ai_agent\.tmp\test-user-data\Default\Local Storage\leveldb/MANIFEST-000001
+2026/04/29-11:13:37.273 66a8 Recovering log #3
+2026/04/29-11:13:37.275 66a8 Reusing old log D:\cnf\n8n_ai_agent\.tmp\test-user-data\Default\Local Storage\leveldb/000003.log 

.tmp/test-user-data/Default/Session Storage/CURRENT

+MANIFEST-000001

.tmp/test-user-data/Default/Session Storage/LOG

+2026/04/29-11:38:16.248 6a70 Reusing MANIFEST D:\cnf\n8n_ai_agent\.tmp\test-user-data\Default\Session Storage/MANIFEST-000001
+2026/04/29-11:38:16.248 6a70 Recovering log #3
+2026/04/29-11:38:16.249 6a70 Reusing old log D:\cnf\n8n_ai_agent\.tmp\test-user-data\Default\Session Storage/000003.log 

.tmp/test-user-data/Default/Session Storage/LOG.old

+2026/04/29-11:14:37.269 48e0 Reusing MANIFEST D:\cnf\n8n_ai_agent\.tmp\test-user-data\Default\Session Storage/MANIFEST-000001
+2026/04/29-11:14:37.270 48e0 Recovering log #3
+2026/04/29-11:14:37.271 48e0 Reusing old log D:\cnf\n8n_ai_agent\.tmp\test-user-data\Default\Session Storage/000003.log 

.tmp/test-user-data/Default/shared_proto_db/CURRENT

+MANIFEST-000001

.tmp/test-user-data/Default/shared_proto_db/LOG

+2026/04/29-11:37:15.649 3710 Reusing MANIFEST D:\cnf\n8n_ai_agent\.tmp\test-user-data\Default\shared_proto_db/MANIFEST-000001
+2026/04/29-11:37:15.649 3710 Recovering log #3
+2026/04/29-11:37:15.650 3710 Reusing old log D:\cnf\n8n_ai_agent\.tmp\test-user-data\Default\shared_proto_db/000003.log 

.tmp/test-user-data/Default/shared_proto_db/LOG.old

+2026/04/29-11:13:37.302 685c Reusing MANIFEST D:\cnf\n8n_ai_agent\.tmp\test-user-data\Default\shared_proto_db/MANIFEST-000001
+2026/04/29-11:13:37.303 685c Recovering log #3
+2026/04/29-11:13:37.303 685c Reusing old log D:\cnf\n8n_ai_agent\.tmp\test-user-data\Default\shared_proto_db/000003.log 

.tmp/test-user-data/Default/shared_proto_db/metadata/CURRENT

+MANIFEST-000001

.tmp/test-user-data/Default/shared_proto_db/metadata/LOG

+2026/04/29-11:37:15.642 3710 Reusing MANIFEST D:\cnf\n8n_ai_agent\.tmp\test-user-data\Default\shared_proto_db\metadata/MANIFEST-000001
+2026/04/29-11:37:15.643 3710 Recovering log #3
+2026/04/29-11:37:15.643 3710 Reusing old log D:\cnf\n8n_ai_agent\.tmp\test-user-data\Default\shared_proto_db\metadata/000003.log 

.tmp/test-user-data/Default/shared_proto_db/metadata/LOG.old

+2026/04/29-11:13:37.300 685c Reusing MANIFEST D:\cnf\n8n_ai_agent\.tmp\test-user-data\Default\shared_proto_db\metadata/MANIFEST-000001
+2026/04/29-11:13:37.300 685c Recovering log #3
+2026/04/29-11:13:37.300 685c Reusing old log D:\cnf\n8n_ai_agent\.tmp\test-user-data\Default\shared_proto_db\metadata/000003.log 

package-lock.json

@@ -31,6 +31,7 @@
       "devDependencies": {
         "@crxjs/vite-plugin": "^2.0.0-beta.23",
         "@intlify/unplugin-vue-i18n": "^1.5.0",
+        "@playwright/test": "^1.59.1",
         "@tsconfig/node18": "^18.2.2",
         "@types/lodash-es": "^4.17.11",
         "@types/node": "^18.18.5",
@@ -1834,6 +1835,22 @@
         "node": ">=14"
       }
     },
+    "node_modules/@playwright/test": {
+      "version": "1.59.1",
+      "resolved": "https://registry.npmjs.org/@playwright/test/-/test-1.59.1.tgz",
+      "integrity": "sha512-PG6q63nQg5c9rIi4/Z5lR5IVF7yU5MqmKaPOe0HSc0O2cX1fPi96sUQu5j7eo4gKCkB2AnNGoWt7y4/Xx3Kcqg==",
+      "dev": true,
+      "license": "Apache-2.0",
+      "dependencies": {
+        "playwright": "1.59.1"
+      },
+      "bin": {
+        "playwright": "cli.js"
+      },
+      "engines": {
+        "node": ">=18"
+      }
+    },
     "node_modules/@protobufjs/aspromise": {
       "version": "1.1.2",
       "resolved": "https://registry.npmjs.org/@protobufjs/aspromise/-/aspromise-1.1.2.tgz",
@@ -6357,6 +6374,53 @@
         "pathe": "^1.1.2"
       }
     },
+    "node_modules/playwright": {
+      "version": "1.59.1",
+      "resolved": "https://registry.npmjs.org/playwright/-/playwright-1.59.1.tgz",
+      "integrity": "sha512-C8oWjPR3F81yljW9o5OxcWzfh6avkVwDD2VYdwIGqTkl+OGFISgypqzfu7dOe4QNLL2aqcWBmI3PMtLIK233lw==",
+      "dev": true,
+      "license": "Apache-2.0",
+      "dependencies": {
+        "playwright-core": "1.59.1"
+      },
+      "bin": {
+        "playwright": "cli.js"
+      },
+      "engines": {
+        "node": ">=18"
+      },
+      "optionalDependencies": {
+        "fsevents": "2.3.2"
+      }
+    },
+    "node_modules/playwright-core": {
+      "version": "1.59.1",
+      "resolved": "https://registry.npmjs.org/playwright-core/-/playwright-core-1.59.1.tgz",
+      "integrity": "sha512-HBV/RJg81z5BiiZ9yPzIiClYV/QMsDCKUyogwH9p3MCP6IYjUFu/MActgYAvK0oWyV9NlwM3GLBjADyWgydVyg==",
+      "dev": true,
+      "license": "Apache-2.0",
+      "bin": {
+        "playwright-core": "cli.js"
+      },
+      "engines": {
+        "node": ">=18"
+      }
+    },
+    "node_modules/playwright/node_modules/fsevents": {
+      "version": "2.3.2",
+      "resolved": "https://registry.npmjs.org/fsevents/-/fsevents-2.3.2.tgz",
+      "integrity": "sha512-xiqMQR4xAeHTuB9uWm+fFRcIOgKBMiOBP+eXiyT7jsgVCq1bkVygt00oASowB7EdtpOHaaPgKt812P9ab+DDKA==",
+      "dev": true,
+      "hasInstallScript": true,
+      "license": "MIT",
+      "optional": true,
+      "os": [
+        "darwin"
+      ],
+      "engines": {
+        "node": "^8.16.0 || ^10.6.0 || >=11.0.0"
+      }
+    },
     "node_modules/postcss": {
       "version": "8.4.38",
       "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.4.38.tgz",

package.json

@@ -37,6 +37,7 @@
   "devDependencies": {
     "@crxjs/vite-plugin": "^2.0.0-beta.23",
     "@intlify/unplugin-vue-i18n": "^1.5.0",
+    "@playwright/test": "^1.59.1",
     "@tsconfig/node18": "^18.2.2",
     "@types/lodash-es": "^4.17.11",
     "@types/node": "^18.18.5",

server/system-prompt.mjs

@@ -31,29 +31,31 @@ ALWAYS explicitly configure ALL parameters that control node behavior.
 
 ## Available MCP Tools
 
+Note: Depending on the connection mode (Local Proxy or Native), tools may or may not have the \`n8n_\` prefix. Use the exact tool names provided by the MCP server.
+
 ### Workflow Management
-| Tool | Action | Method |
-|------|--------|--------|
-| n8n_list_workflows | List all workflows | GET /workflows |
-| n8n_get_workflow | Get workflow JSON (full/structure/minimal) | GET /workflows/{id} |
-| n8n_create_workflow | Create new workflow | POST /workflows |
-| n8n_update_workflow | Full workflow update (replace) | PUT /workflows/{id} |
-| n8n_delete_workflow | Delete workflow permanently | DELETE /workflows/{id} |
-| n8n_activate_workflow | Activate (start triggers) | POST /workflows/{id}/activate |
-| n8n_deactivate_workflow | Deactivate (stop triggers) | POST /workflows/{id}/deactivate |
+| Tool | Action |
+|------|--------|
+| [n8n_]list_workflows | List all workflows |
+| [n8n_]get_workflow | Get workflow JSON (full/structure/minimal) |
+| [n8n_]create_workflow | Create new workflow |
+| [n8n_]update_workflow | Full workflow update (replace) |
+| [n8n_]delete_workflow | Delete workflow permanently |
+| [n8n_]activate_workflow | Activate (start triggers) |
+| [n8n_]deactivate_workflow | Deactivate (stop triggers) |
 
 ### Execution Management
 | Tool | Action |
 |------|--------|
-| n8n_execute_workflow | Trigger workflow with input data |
-| n8n_list_executions | List recent executions (filter by workflow/status) |
-| n8n_get_execution | Get execution details with node I/O data |
+| [n8n_]execute_workflow | Trigger workflow with input data |
+| [n8n_]list_executions | List recent executions (filter by workflow/status) |
+| [n8n_]get_execution | Get execution details with node I/O data |
 
 ### System
 | Tool | Action |
 |------|--------|
-| n8n_list_credentials | List credential names/types (values never exposed) |
-| n8n_health_check | Check n8n API connectivity |
+| [n8n_]list_credentials | List credential names/types (values never exposed) |
+| [n8n_]health_check | Check n8n API connectivity |
 
 ## Workflow Modification Process
 

src/bg/index.ts

@@ -86,7 +86,7 @@ async function openPipBackground(url: string) {
       url: url,
       mode: "write-html",
     },
-  })
+  }).catch(err => console.debug("[bg] openPipBackground sendMessage failed:", err))
 }
 
 async function pipLaunch(url: string) {
@@ -98,7 +98,7 @@ async function pipLaunch(url: string) {
   chrome.tabs.sendMessage(tab.id!, {
     type: MessageType.pipLaunch,
     url: url,
-  })
+  }).catch(err => console.debug("[bg] pipLaunch sendMessage failed:", err))
 }
 
 type UpdatePipWinOption = {
@@ -136,20 +136,23 @@ async function handleInvokeRequest(
   currentSender = sender
   let res = await messageInvoke.handleReqMsg(message)
 
-  if (!sender.tab?.id) {
-    console.error("sender tab id is undefined", sender)
-  }
-
   if (res) {
-    chrome.tabs.sendMessage(sender.tab?.id!, {
+    if (sender.tab?.id) {
+      chrome.tabs.sendMessage(sender.tab.id, {
+        type: MessageType.invokeResponse,
+        ...res,
+      }).catch(err => console.debug("[bg] handleInvokeRequest sendMessage failed:", err))
+    } else {
+      chrome.runtime.sendMessage({
         type: MessageType.invokeResponse,
         ...res,
       })
     }
+  }
 }
 
 function handleMessage(message: any, sender: chrome.runtime.MessageSender, sendResponse?: (response: any) => void) {
-  console.log("[bg]: ", message.type, message, sender, Date.now())
+  console.log("[bg]: ", message?.type, message, sender, Date.now())
 
   // ── SuperAssistant MCP Bridge ──
   if (message?.type === "n8n-mcp:call-tool") {
@@ -169,6 +172,13 @@ function handleMessage(message: any, sender: chrome.runtime.MessageSender, sendR
     return true // Async response
   }
 
+  // ── MCP Connection Status ──
+  if (message?.type === "n8n-mcp:status") {
+    const status = mcpService.getStatus()
+    sendResponse?.({ connected: status === "connected", status })
+    return false
+  }
+
   // ── MCP Config Management ──
   if (message?.type === "n8n-mcp:get-config") {
     chrome.storage.local.get(["mcp_n8n_config"]).then((data) => {
@@ -176,7 +186,8 @@ function handleMessage(message: any, sender: chrome.runtime.MessageSender, sendR
       sendResponse?.({
         proxyUrl: cfg.proxyUrl || "http://localhost:3006",
         n8nApiUrl: cfg.n8nApiUrl || "",
-        n8nApiKey: cfg.n8nApiKey || ""
+        n8nApiKey: cfg.n8nApiKey || "",
+        mcpAuthToken: cfg.mcpAuthToken || ""
       })
     })
     return true
@@ -250,11 +261,12 @@ function handleMessage(message: any, sender: chrome.runtime.MessageSender, sendR
       break
     case MessageType.forwardToTab:
       chrome.tabs.sendMessage(message.tabId, message.message)
+        .catch(err => console.debug("[bg] forwardToTab sendMessage failed:", err))
       break
     case MessageType.invokeRequest:
       currentSender = sender
       messageInvoke.handleReqMsg(message, sender)
-      break
+      return true
     case MessageType.invokeResponse:
       messageInvoke.handleResMsg(message)
       break
@@ -265,6 +277,12 @@ function handleMessage(message: any, sender: chrome.runtime.MessageSender, sendR
       registerContentSidebar(sender.tab!.id!, message.info)
       break
   }
+  
+  // Call sendResponse for non-async paths to avoid port closure errors
+  if (sendResponse) {
+    sendResponse({ handled: true })
+  }
+  return false
 }
 
 async function toggleMinimize() {

src/components/WorkflowLauncher.vue

 <script setup lang="ts">
-import { ref, onMounted, computed } from "vue"
+import { ref, onMounted, computed, onUnmounted } from "vue"
+import { openSidebar, getIsEdge } from "@/utils/ext"
 
 // ─── State ──────────────────────────────────────────────────────────
 
@@ -15,6 +16,7 @@ const workflowLoaded = ref(false)
 
 // MCP connection
 const mcpConnected = ref(false)
+let statusInterval: any = null
 
 // Platform selection
 const selectedPlatform = ref<string | null>(null)
@@ -51,9 +53,9 @@ const platforms = [
 
 onMounted(async () => {
   try {
-    // 1. Check MCP connection
-    const mcpStatus = await sendMessage({ type: "n8n-mcp:status" })
-    mcpConnected.value = mcpStatus?.connected || false
+    // 1. Start status polling
+    checkMcpStatus()
+    statusInterval = setInterval(checkMcpStatus, 2000)
 
     // 2. Check active tab
     const [tab] = await chrome.tabs.query({ active: true, currentWindow: true })
@@ -67,6 +69,23 @@ onMounted(async () => {
   }
 })
 
+onUnmounted(() => {
+  if (statusInterval) clearInterval(statusInterval)
+})
+
+async function checkMcpStatus() {
+  const mcpStatus = await sendMessage({ type: "n8n-mcp:status" })
+  const newStatus = mcpStatus?.connected || false
+  
+  // If connection status just became true and we don't have workflow info, re-detect
+  if (newStatus && !mcpConnected.value && isN8nPage.value && !workflowLoaded.value) {
+    const [tab] = await chrome.tabs.query({ active: true, currentWindow: true })
+    if (tab) detectN8nWorkflow(tab)
+  }
+  
+  mcpConnected.value = newStatus
+}
+
 // ─── n8n Detection ──────────────────────────────────────────────────
 
 async function detectN8nWorkflow(tab: chrome.tabs.Tab) {
@@ -158,11 +177,13 @@ async function launchPlatform(platform: typeof platforms[0]) {
   selectedPlatform.value = platform.id
 
   try {
-    // Open new tab with the AI platform
-    const newTab = await chrome.tabs.create({ url: platform.url })
+    const isEdge = getIsEdge()
     
-    // The content script (superassistant/index.ts) on the new tab will
-    // automatically fetch context from background and inject it into chat
+    // Open AI platform in sidebar
+    await openSidebar({
+      urls: [platform.url],
+      sidePanel: !isEdge, // Use Chrome SidePanel if available, otherwise content sidebar
+    })
 
     // Close popup
     setTimeout(() => window.close(), 300)

src/pages/Popup.vue

@@ -45,24 +45,39 @@ const showSettings = ref(false)
 const mcpConfig = reactive({
   proxyUrl: "http://localhost:3006",
   n8nApiUrl: "",
-  n8nApiKey: ""
+  mcpAuthToken: ""
 })
 const isSavingConfig = ref(false)
+const saveMessage = ref("")
 
 async function saveMcpConfig() {
   isSavingConfig.value = true
+  saveMessage.value = "⏳ Đang kết nối thử..."
+  
   await chrome.runtime.sendMessage({
     type: "n8n-mcp:set-config",
     config: {
       proxyUrl: mcpConfig.proxyUrl,
       n8nApiUrl: mcpConfig.n8nApiUrl,
-      n8nApiKey: mcpConfig.n8nApiKey
+      mcpAuthToken: mcpConfig.mcpAuthToken
     }
   })
+
+  // Wait a bit for connection attempt
+  setTimeout(async () => {
+    const status = await chrome.runtime.sendMessage({ type: "n8n-mcp:status" })
+    if (status?.connected) {
+      saveMessage.value = "✅ Kết nối thành công!"
       setTimeout(() => {
         isSavingConfig.value = false
         showSettings.value = false
-  }, 500)
+        saveMessage.value = ""
+      }, 1500)
+    } else {
+      saveMessage.value = "❌ Thất bại. Kiểm tra lại Token!"
+      isSavingConfig.value = false
+    }
+  }, 3000)
 }
 
 const host = computed({
@@ -128,6 +143,7 @@ onMounted(() => {
       mcpConfig.proxyUrl = res.proxyUrl || "http://localhost:3006"
       mcpConfig.n8nApiUrl = res.n8nApiUrl || ""
       mcpConfig.n8nApiKey = res.n8nApiKey || ""
+      mcpConfig.mcpAuthToken = res.mcpAuthToken || ""
     }
   })
 
@@ -296,12 +312,12 @@ function showChatDocs() {
           />
         </div>
         <div>
-          <label class="text-xs opacity-60 mb-1 block">n8n API Key</label>
+          <label class="text-xs opacity-60 mb-1 block">MCP Auth Token (Bearer)</label>
           <input
-            v-model="mcpConfig.n8nApiKey"
+            v-model="mcpConfig.mcpAuthToken"
             type="password"
             class="w-full bg-background border border-white/10 rounded px-2 py-1 text-sm outline-none focus:border-blue-500 transition-colors"
-            placeholder="n8n_api_key_..."
+            placeholder="eyJhbGci..."
           />
         </div>
         <button
@@ -309,8 +325,11 @@ function showChatDocs() {
           :disabled="isSavingConfig"
           class="mt-1 w-full bg-blue-600 hover:bg-blue-500 disabled:opacity-50 text-white rounded py-1.5 text-sm font-medium transition-colors"
         >
-          {{ isSavingConfig ? "Saving..." : "Save Settings" }}
+          {{ isSavingConfig ? "Checking..." : "Save Settings" }}
         </button>
+        <div v-if="saveMessage" class="mt-2 text-center text-xs font-medium" :class="saveMessage.includes('✅') ? 'text-green-500' : 'text-amber-500'">
+          {{ saveMessage }}
+        </div>
       </div>
     </div>
 

src/superassistant/index.ts

@@ -63,6 +63,34 @@ async function initialize(): Promise<void> {
   logMessage(`SuperAssistant ready on ${adapter.name} ⚡`)
 }
 
+// ─── System Prompt Fallback ─────────────────────────────────────────
+
+const SYSTEM_PROMPT_FALLBACK = `You are an expert n8n workflow automation engineer with direct API access to a live n8n instance through MCP (Model Context Protocol) tools. Your role is to design, build, modify, validate, and execute n8n workflows with maximum accuracy and efficiency.
+
+## Available MCP Tools
+Note: Since you are connected directly to n8n, tools DO NOT have the 'n8n_' prefix.
+- list_workflows: List all workflows
+- get_workflow: Get workflow JSON (full/structure/minimal)
+- create_workflow: Create new workflow
+- update_workflow: Full workflow update (replace)
+- execute_workflow: Trigger workflow with input data
+- list_credentials: List credential names/types
+
+## Workflow Modification Process
+1. Read Current State (get_workflow)
+2. Understand Structure (identify nodes and connections)
+3. Plan Changes (tell user)
+4. Build & Update (update_workflow with COMPLETE JSON)
+5. Verify (get_workflow structure)
+
+## Critical Warnings
+- Use \`={{ $json.field }}\` syntax for expressions.
+- ALWAYS use the LATEST stable typeVersion for each node.
+- Connections use SOURCE NODE NAME as key.
+
+Respond in the SAME LANGUAGE as the user's message.
+`;
+
 // ─── Context Injection ──────────────────────────────────────────────
 
 /**
@@ -84,18 +112,24 @@ async function injectWorkflowContext(adapter: any): Promise<void> {
   // Store context globally for bridge to auto-attach to tool calls
   ;(window as any).__n8nWorkflowContext = ctx
 
-  // Fetch system prompt from MCP proxy
-  let systemPrompt = ""
+  // Fetch system prompt from MCP proxy (optional fallback)
+  let systemPrompt = SYSTEM_PROMPT_FALLBACK
   try {
     const mcpConfig = await sendMessage({ type: "n8n-mcp:get-config" })
     const proxyUrl = mcpConfig?.proxyUrl || "http://localhost:3006"
+    
+    // If using local proxy, try to fetch its custom prompt
+    if (proxyUrl.includes("localhost") || proxyUrl.includes("127.0.0.1")) {
       const res = await fetch(`${proxyUrl}/system-prompt`)
       if (res.ok) {
         systemPrompt = await res.text()
-      logger.info("✅ System prompt loaded from MCP proxy")
+        logger.info("✅ System prompt loaded from local proxy")
+      }
+    } else {
+      logger.info("ℹ️ Native MCP detected — using embedded system prompt")
     }
   } catch (err) {
-    logger.info("⚠️ Could not fetch system prompt — using inline fallback")
+    logger.info("⚠️ Using embedded system prompt fallback")
   }
 
   // Build the final prompt: system prompt + workflow context
@@ -108,6 +142,7 @@ async function injectWorkflowContext(adapter: any): Promise<void> {
   const inserted = await adapter.insertText(prompt)
   if (inserted) {
     logger.info("✅ Workflow context injected into chat input")
+    // Trigger auto-send if the prompt is large (optional, but better for UX)
   } else {
     logger.info("⚠️ Could not inject context — chat input not found (user may type manually)")
   }
@@ -115,33 +150,29 @@ async function injectWorkflowContext(adapter: any): Promise<void> {
 
 function buildContextPrompt(ctx: any, systemPrompt: string): string {
   const contextBlock = [
-    `I'm working on an n8n workflow.`,
+    `--- WORKFLOW CONTEXT ---`,
+    `I'm working on this n8n workflow:`,
+    `ID: ${ctx.workflowId}`,
+    `Name: ${ctx.workflowName}`,
+    `URL: ${ctx.n8nBaseUrl}/workflow/${ctx.workflowId}`,
     ``,
-    `**Workflow ID:** ${ctx.workflowId}`,
-    `**Name:** ${ctx.workflowName}`,
-    `**Instance:** ${ctx.n8nBaseUrl}`,
-    ``,
-    `**Current structure:**`,
+    `Current structure (JSON):`,
     "```json",
     ctx.workflowSummary,
     "```",
+    `-----------------------`,
     ``,
-    `Please help me modify this workflow. Use the n8n MCP tools ` +
-      `(n8n_get_workflow, n8n_update_workflow, etc.) targeting workflow ID \`${ctx.workflowId}\`.`,
+    `I want you to help me with this workflow. Please use the MCP tools available to you to read or modify it.`,
   ].join("\n")
 
-  // If system prompt available, prepend it (hidden in a system block)
-  if (systemPrompt) {
   return [
-      `<system>`,
+    `# INSTRUCTIONS`,
     systemPrompt,
-      `</system>`,
     ``,
     contextBlock,
+    ``,
+    `My request: `,
   ].join("\n")
-  }
-
-  return contextBlock
 }
 
 // ─── Helpers ────────────────────────────────────────────────────────