fix: improve create_new_diagram tool description to prevent misuse and bump to v0.2.0

components/chat/ChatLobby.tsx

@@ -107,8 +107,8 @@ export function ChatLobby({
     currentInput = "",
     dict,
 }: ChatLobbyProps) {
-    const [templatesExpanded, setTemplatesExpanded] = useState(false)
+    const [templatesExpanded, setTemplatesExpanded] = useState(true)
-    const [examplesExpanded, setExamplesExpanded] = useState(false)
+    const [examplesExpanded, setExamplesExpanded] = useState(true)
     const [panelVisibility, setPanelVisibility] = useState(getPanelVisibility)
     const [deleteDialogOpen, setDeleteDialogOpen] = useState(false)
     const [sessionToDelete, setSessionToDelete] = useState<string | null>(null)
@@ -125,19 +125,25 @@ export function ChatLobby({
     const hasHistory = sessions.length > 0
 
     if (!hasHistory) {
-        if (panelVisibility.myTemplates) {
+        if (!panelVisibility.myTemplates && !panelVisibility.quickExamples) {
-            return (
+            return null
-                <TemplatePanel
-                    setInput={setInput}
-                    onSendTemplate={onSendTemplate}
-                    currentInput={currentInput}
-                />
-            )
         }
-        if (panelVisibility.quickExamples) {
+        return (
-            return <ExamplePanel setInput={setInput} setFiles={setFiles} />
+            <div className="animate-fade-in">
-        }
+                {panelVisibility.myTemplates && (
-        return null
+                    <TemplatePanel
+                        setInput={setInput}
+                        onSendTemplate={onSendTemplate}
+                        currentInput={currentInput}
+                    />
+                )}
+                {panelVisibility.quickExamples && (
+                    <div className={panelVisibility.myTemplates ? "mt-6" : ""}>
+                        <ExamplePanel setInput={setInput} setFiles={setFiles} />
+                    </div>
+                )}
+            </div>
+        )
     }
 
     // Show history + collapsible examples when there are sessions

packages/mcp-server/package-lock.json

@@ -1,12 +1,12 @@
 {
     "name": "@next-ai-drawio/mcp-server",
-    "version": "0.1.17",
+    "version": "0.2.0",
     "lockfileVersion": 3,
     "requires": true,
     "packages": {
         "": {
             "name": "@next-ai-drawio/mcp-server",
-            "version": "0.1.17",
+            "version": "0.2.0",
             "license": "Apache-2.0",
             "dependencies": {
                 "@modelcontextprotocol/sdk": "^1.0.4",

packages/mcp-server/package.json

@@ -1,6 +1,6 @@
 {
     "name": "@next-ai-drawio/mcp-server",
-    "version": "0.1.19",
+    "version": "0.2.0",
     "description": "MCP server for Next AI Draw.io - AI-powered diagram generation with real-time browser preview",
     "type": "module",
     "main": "dist/index.js",

packages/mcp-server/src/index.ts

@@ -155,19 +155,22 @@ server.registerTool(
 server.registerTool(
     "create_new_diagram",
     {
-        description: `Create a NEW diagram from mxGraphModel XML. Use this when creating a diagram from scratch or replacing the current diagram entirely.
+        description: `Create a NEW diagram from mxGraphModel XML. ONLY use this when creating a diagram from scratch.
+
+⚠️ DO NOT use this tool to modify an existing diagram — it will DESTROY all existing content and user changes. Use edit_diagram instead for ANY modifications to an existing diagram.
 
 CRITICAL: You MUST provide the 'xml' argument in EVERY call. Do NOT call this tool without xml.
 
 When to use this tool:
-- Creating a new diagram from scratch
+- Creating a new diagram from scratch (no existing diagram)
-- Replacing the current diagram with a completely different one
+- The user explicitly asks to "start over" or "create a new diagram"
-- Major structural changes that require regenerating the diagram
 
-When to use edit_diagram instead:
+When to use edit_diagram instead (ALWAYS prefer edit_diagram if a diagram already exists):
-- Small modifications to existing diagram
+- ANY modifications to an existing diagram
-- Adding/removing individual elements
+- Adding/removing/moving elements
-- Changing labels, colors, or positions
+- Changing labels, colors, styles, or positions
+- Restructuring or reorganizing existing content
+- Adding new elements to an existing diagram
 
 XML FORMAT - Full mxGraphModel structure:
 <mxGraphModel>

packages/mcp-server/tsconfig.json

@@ -12,7 +12,8 @@
         "declaration": true,
         "declarationMap": true,
         "sourceMap": true,
-        "resolveJsonModule": true
+        "resolveJsonModule": true,
+        "types": ["node"]
     },
     "include": ["src/**/*"],
     "exclude": ["node_modules", "dist"]