feat: update skills to assistant-ui 0.14 and add 4 new skills

.claude-plugin/marketplace.json

@@ -6,7 +6,7 @@
   },
   "metadata": {
     "description": "Agent skills for building AI chat interfaces with assistant-ui",
-    "version": "0.0.1"
+    "version": "0.0.2"
   },
   "plugins": [
     {
@@ -22,7 +22,11 @@
         "./skills/streaming",
         "./skills/cloud",
         "./skills/thread-list",
-        "./skills/update"
+        "./skills/update",
+        "./skills/copilots",
+        "./skills/react-mcp",
+        "./skills/observability",
+        "./skills/markdown"
       ]
     }
   ]

README.md

@@ -21,6 +21,10 @@ npx skills add assistant-ui/skills
 | `/cloud` | Cloud persistence and authentication |
 | `/thread-list` | Multi-thread management |
 | `/update` | Update assistant-ui and AI SDK to latest versions |
+| `/copilots` | Ground the assistant in your app (instructions, context, visible components, interactables) |
+| `/markdown` | Markdown rendering (syntax highlighting, LaTeX, Mermaid, Streamdown) |
+| `/react-mcp` | User-managed MCP server UIs (connect, OAuth, manage) |
+| `/observability` | Backend tracing and telemetry (Langfuse, LangSmith, Helicone) |
 
 ## Usage
 
@@ -36,6 +40,10 @@ After installation, use skills in Claude Code by typing `/` followed by the skil
 /cloud           # Persistence and auth
 /thread-list     # Multi-thread management
 /update          # Update assistant-ui and AI SDK versions
+/copilots        # Ground the assistant in your app
+/markdown        # Markdown rendering and customization
+/react-mcp       # User-managed MCP servers
+/observability   # Backend tracing and telemetry
 ```
 
 ## Links

assistant-ui/.claude-plugin/plugin.json

@@ -1,7 +1,7 @@
 {
   "name": "assistant-ui",
   "description": "Skills for building AI chat interfaces with assistant-ui React library",
-  "version": "0.0.1",
+  "version": "0.0.2",
   "author": {
     "name": "assistant-ui"
   },

assistant-ui/skills/assistant-ui/SKILL.md

@@ -1,13 +1,12 @@
 ---
 name: assistant-ui
-description: Guide for assistant-ui library - AI chat UI components. Use when asking about architecture, debugging, or understanding the codebase.
-version: 0.0.1
+description: "Overview and router for assistant-ui, the React library for building AI chat interfaces from composable primitives. Use for high-level, cross-cutting, or architecture-overview questions: choosing packages, picking a runtime, or understanding the layered model (RuntimeCore, Runtime, context hooks, primitives) and message model. Covers the `@assistant-ui/react` core plus `@assistant-ui/react-ai-sdk`, `@assistant-ui/react-langgraph`, `assistant-stream`, and `assistant-cloud`; `AssistantRuntimeProvider`; the primitives `ThreadPrimitive`, `MessagePrimitive`, `ComposerPrimitive`; the hooks `useAui`, `useAuiState`, `useAuiEvent`; and runtime selection across `useChatRuntime`, `useExternalStoreRuntime`, `useLangGraphRuntime`, `useLocalRuntime`. For a specific area route to a focused sibling instead: setup, runtime, primitives, tools, streaming, cloud, thread-list, or update. Not for hands-on tasks already owned by those siblings."
 license: MIT
 ---
 
 # assistant-ui
 
-**Always consult [assistant-ui.com/llms.txt](https://assistant-ui.com/llms.txt) for latest API.**
+**Always consult [assistant-ui.com/llms.txt](https://www.assistant-ui.com/llms.txt) for the latest API.**
 
 React library for building AI chat interfaces with composable primitives.
 

assistant-ui/skills/assistant-ui/references/architecture.md

@@ -59,13 +59,10 @@ React hooks for accessing runtime:
 // Modern API (recommended)
 import { useAui, useAuiState, useAuiEvent } from "@assistant-ui/react";
 
-// Get API for imperative actions
 const api = useAui();
 
-// Subscribe to state changes
 const messages = useAuiState(s => s.thread.messages);
 
-// Listen to events
 useAuiEvent("composer.send", (e) => console.log(e));
 ```
 
@@ -126,7 +123,8 @@ interface ThreadAssistantMessage {
   id: string;
   role: "assistant";
   content: MessagePart[];
-  status: "running" | "complete" | "incomplete" | "requires-action";
+  // status is an object, not a string. Check status.type.
+  status: MessageStatus; // { type: "running" | "complete" | "incomplete" | "requires-action"; reason?: string }
   createdAt: Date;
 }
 

assistant-ui/skills/assistant-ui/references/packages.md

@@ -18,6 +18,7 @@
 | @assistant-ui/store | State management |
 | @assistant-ui/react-devtools | Developer tools |
 | @assistant-ui/react-hook-form | React Hook Form integration |
+| @assistant-ui/react-mcp | User-managed MCP server tools |
 | @assistant-ui/react-a2a | Agent-to-Agent protocol for multi-agent systems |
 | @assistant-ui/react-ag-ui | AG-UI protocol adapter for agent backends |
 | @assistant-ui/cloud-ai-sdk | AI SDK hooks for assistant-cloud persistence |
@@ -34,7 +35,6 @@
 | safe-content-frame | Sandboxed iframe content |
 | tw-shimmer | Tailwind shimmer effects |
 | tw-glass | Tailwind CSS v4 glass refraction effects |
-| mcp-app-studio | MCP app builder |
 
 ## Core Packages
 
@@ -95,6 +95,7 @@ npm install @assistant-ui/react-ai-sdk @ai-sdk/react
 - `useChatRuntime` - Main hook (recommended)
 - `useAISDKRuntime` - Lower-level hook
 - `AssistantChatTransport` - Custom transport class
+- `frontendTools` - Forward frontend-registered tools to the backend route
 
 ### @assistant-ui/react-langgraph
 
@@ -147,6 +148,6 @@ npm install @assistant-ui/react-syntax-highlighter
 
 ## Version Compatibility
 
-- `@assistant-ui/react` requires React 18+ or 19
-- `@assistant-ui/react-ai-sdk` requires AI SDK v6 (`ai@^6`)
-- Node.js >=24 recommended (monorepo requirement)
+- `@assistant-ui/react` requires React 18 or 19 (`react@^18 || ^19`)
+- `@assistant-ui/react-ai-sdk` depends on AI SDK v6 (`ai@^6`), which requires `zod@^3.25.76 || ^4.1.8`
+- Node.js >=24 is only required to build the assistant-ui monorepo itself; consuming apps follow their framework's Node requirement

assistant-ui/skills/cloud/SKILL.md

@@ -1,20 +1,21 @@
 ---
 name: cloud
-description: Guide for assistant-cloud persistence and authorization. Use when setting up thread persistence, file uploads, or authentication.
-version: 0.0.1
+description: "Sets up assistant-ui Cloud persistence and authorization with the assistant-cloud package and AssistantCloud client. Use when adding cross-session thread/message persistence, multi-device chat history, file uploads, or auth to an assistant-ui app: passing the cloud option to useChatRuntime (with AssistantChatTransport from @assistant-ui/react-ai-sdk), configuring AssistantCloud with authToken (JWT), apiKey plus userId/workspaceId (server-side), or anonymous mode, and wiring auth providers like NextAuth, Clerk, or Firebase. Covers cloud.threads.list/get/create/update/delete, cloud.threads.messages(threadId), cloud.files.generatePresignedUploadUrl, the aui/v0 message format, custom adapters (CloudMessagePersistence, createFormattedPersistence, ThreadHistoryAdapter, RemoteThreadListAdapter), auto title generation, external_id/metadata mapping, and env vars NEXT_PUBLIC_ASSISTANT_BASE_URL and ASSISTANT_API_KEY. For the thread-list sidebar UI itself use thread-list."
 license: MIT
 ---
 
 # assistant-ui Cloud
 
-**Always consult [assistant-ui.com/llms.txt](https://assistant-ui.com/llms.txt) for latest API.**
+**Always consult [assistant-ui.com/llms.txt](https://www.assistant-ui.com/llms.txt) for the latest API.**
 
 Cloud persistence for threads, messages, and files.
 
 ## References
 
 - [./references/persistence.md](./references/persistence.md) -- Thread and message persistence
 - [./references/authorization.md](./references/authorization.md) -- Authentication patterns
+- [./references/custom-persistence.md](./references/custom-persistence.md) -- Self-hosted message persistence
+- [./references/auth-integrations.md](./references/auth-integrations.md) -- better-auth and Clerk integrations
 
 ## Installation
 
@@ -78,16 +79,13 @@ const cloud = new AssistantCloud({
 ## Cloud API
 
 ```tsx
-// Thread operations
 const threads = await cloud.threads.list();
 await cloud.threads.create({ title: "New Chat" });
 await cloud.threads.update(threadId, { title: "Updated" });
 await cloud.threads.delete(threadId);
 
-// Message operations
 const messages = await cloud.threads.messages(threadId).list();
 
-// File uploads
 const { signedUrl, publicUrl } = await cloud.files.generatePresignedUploadUrl({
   filename: "document.pdf",
 });