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assistant-ui/tools

注册 LLM 工具并在 assistant-ui 中渲染自定义工具调用 UI（@assistant-ui/react）。用于添加纯前端工具、渲染后端 AI SDK 工具调用、构建生成式 UI，或实现人工在环与审批流程。

tools 是什么？

该技能专注于在 assistant-ui 框架中注册 LLM 工具并渲染对应的自定义 UI。它支持两种主要工具类型：纯前端工具（通过 makeAssistantTool / useAssistantTool），用于处理浏览器操作如剪贴板、导航、localStorage、异步生成器流和 AbortSignal；以及后端 AI SDK 工具调用（通过 makeAssistantToolUI / useAssistantToolUI），用于渲染状态类型（running/complete/incomplete/requires-action）、参数、结果和工件。此外，该技能还涵盖从工具结果构建生成式 UI，以及实现人工在环和审批流程，例如使用 addResult、resume 和 respondToApproval 处理服务端 needsApproval 门控。开发者需在 AssistantRuntimeProvider 内注册工具组件，并使用区分大小写的 toolName 匹配来关联工具及其 UI。当工具 UI 未渲染、工具未被调用或结果未显示时，应优先考虑此技能。

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npx skills add https://github.com/assistant-ui/skills/tree/main/skills/tools
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tools 是做什么的？

在 assistant-ui（@assistant-ui/react）中注册 LLM 工具并渲染自定义工具调用 UI。用于添加纯前端工具（使用 makeAssistantTool / useAssistantTool，处理浏览器的剪贴板、导航、localStorage、异步生成器流、AbortSignal 等操作），渲染后端 AI SDK 的 tool() 调用（使用 makeAssistantToolUI / useAssistantToolUI，处理 status.type：running/complete/incomplete/requires-action，以及通过 ToolCallMessagePartProps 获取 args、result、artifact），从工具结果构建生成式 UI，或实现人工在环和审批流程（使用 addResult、resume 配合 context.human()、respondToApproval 处理服务端 needsApproval 门控）。涵盖在 AssistantRuntimeProvider 内注册工具组件以及用于连接工具与其 UI 的区分大小写的 toolName 匹配。当工具 UI 未渲染、工具未被调用或结果未显示时，请使用此技能。

使用场景

  • 添加纯前端工具（浏览器操作）
  • 渲染后端 AI SDK 工具调用的 UI
  • 构建生成式 UI
  • 实现人工在环和审批流程

平台支持

  • @assistant-ui/react

注意事项

  • 确保在 AssistantRuntimeProvider 内部注册工具组件
  • 使用区分大小写的 toolName 匹配工具与其 UI

Individual skills in this repo

This repo contains 7 individual skills — each has its own dedicated page.

assistant-ui/assistant-ui

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.

assistant-ui/primitives

Builds and customizes assistant-ui chat UI from composable, unstyled @assistant-ui/react primitives that follow Radix-style part composition. Use when assembling or styling a custom Thread, Composer, message rendering, action bar, or branch picker from building blocks: ThreadPrimitive (.Root, .Viewport, .Messages, .Empty, .ScrollToBottom), ComposerPrimitive (.Input, .Send, .Cancel, .Attachments), MessagePrimitive (.Parts/.Content, .Error), ActionBarPrimitive (.Copy, .Edit, .Reload, .Speak, feedback, .ExportMarkdown), BranchPickerPrimitive, AttachmentPrimitive, ThreadListPrimitive, ThreadListItemPrimitive. Covers MessagePrimitive.Parts children render functions for text, image, reasoning, and tool-call parts; conditional rendering with AuiIf (deprecated .If); and gotchas like wrapping in AssistantRuntimeProvider and adding className since primitives ship unstyled. For prebuilt drop-in UI and scaffolding use setup; for multi-thread sidebar behavior use thread-list.

assistant-ui/runtime

Guide for assistant-ui runtime system and state management. Use when working with runtimes, accessing state, or managing thread/message data.

assistant-ui/setup

Installs and configures assistant-ui in a project via the CLI, and picks the right runtime for a backend. Use for first-time install, scaffold, or config: `npx assistant-ui@latest create my-app` (templates default, minimal, cloud, cloud-clerk, langgraph, mcp), `npx assistant-ui@latest init [--yes] [--overwrite]` in an existing Next.js app, or `npx assistant-ui@latest add` registry components (markdown-text, thread-list). Also use to choose a runtime hook for a backend: useChatRuntime (AI SDK), useLangGraphRuntime, useAgUiRuntime, useA2ARuntime, useLocalRuntime (custom streaming API), or useExternalStoreRuntime (Redux/Zustand). Covers Vite/TanStack Start setup, shadcn styling, the playground --preset flag, and avoiding the deprecated @assistant-ui/styles and @assistant-ui/react-ui packages. For upgrading an existing install or post-upgrade breakage use update; for building UI from raw parts use primitives.

assistant-ui/streaming

Streaming backends and wire protocols for assistant-ui via the assistant-stream package. Use when building a custom (non-AI-SDK) streaming endpoint with createAssistantStreamResponse or createAssistantStreamController, emitting parts through appendText/appendReasoning/appendSource/appendFile/addToolCallPart and setResponse; choosing between the AI SDK Data Stream format (toUIMessageStreamResponse) and the native Assistant Transport format; encoding or decoding streams with DataStreamEncoder/DataStreamDecoder, AssistantTransportEncoder/AssistantTransportDecoder, PlainTextEncoder, or UIMessageStreamDecoder; or wiring streamed chunks into useLocalRuntime or useChatRuntime. Use specifically for debugging stream wire issues: text-delta, part-start, result events, text/event-stream content-type, SSE format, tool calls not rendering, or partial text not showing. For general non-stream debugging route to the relevant focused skill, not the parent overview.

assistant-ui/thread-list

Implements multi-thread (conversation history) management in assistant-ui apps: rendering the prebuilt `ThreadList` next to `Thread`, or building a custom sidebar with `ThreadListPrimitive` and `ThreadListItemPrimitive` (Root, New, Items, Trigger, Title, Archive, Unarchive, Delete). Covers thread CRUD through the `useAui()`/`useAuiState()` API: `switchToThread`, `switchToNewThread`, and per item `rename`, `archive`, `unarchive`, `delete`, `generateTitle`, `initialize`, plus reading `s.threads.threadIds`/`archivedThreadIds`/`mainThreadId`. Includes cloud-backed persistence via `useChatRuntime` + `AssistantCloud` and a local `useRemoteThreadListRuntime` + `InMemoryThreadListAdapter` path. Use when a user wants a thread list/sidebar, switching, searching, sorting, drag-and-drop, or renaming/archiving/deleting conversations. For single-thread state, messages, or composer use runtime; for cloud auth/persistence setup use cloud.

assistant-ui/update

Upgrades an existing assistant-ui project to current releases and executes the resulting migrations. Use when the user wants to update, upgrade, bump, or migrate @assistant-ui/react, @assistant-ui/react-ai-sdk, ai, or @ai-sdk/react, hits peer-dependency conflicts or post-upgrade type errors, or must apply renamed APIs after a version jump. Detects installed versus latest versions via npm ls / npm view, then routes through breaking-change references for each jump (AI SDK v4/v5 to v6; assistant-ui 0.8.x to 0.14.x): useAssistantApi to useAui, runtime.threadList to runtime.threads, ThreadPrimitive.ViewportSlack removal, the primitives components prop to children render functions, toDataStreamResponse to toUIMessageStreamResponse, maxSteps to stopWhen: stepCountIs(n). Runs npx assistant-ui@latest upgrade, pnpm/npm add @latest, and npx tsc --noEmit to verify. For a first-time install or fresh scaffold (not an upgrade) use setup instead.

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