A2UI Agent-to-User Interface AI 生成用户界面的声明式协议

✨步子哥 (steper) • 2026年01月04日 00:11
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    </style>
</head>
<body>

    <div class="poster-container">
        <!-- Decorative Background Grid -->
        <div class="grid-bg"></div>

        <!-- Header -->
        <div class="header">
            <div class="logo-area">
                <span class="badge">v0.8 PROTOCOL</span>
            </div>
            <h1>A2UI</h1>
            <h2>Agent-to-User Interface</h2>
            <p style="margin-top: 10px; font-size: 14px; opacity: 0.8;">AI 生成用户界面的声明式协议</p>
        </div>

        <!-- Key Quote -->
        <div class="quote-box">
            <p class="quote-text">
                “AI 不止能说，还能“画界面”。让 Agent 生成 JSON 描述 UI → 客户端用原生组件渲染。安全、跨框架、可组合。”
            </p>
        </div>

        <div class="content">
            <!-- Section 1: Core Concepts -->
            <div>
                <div class="section-title">🔥 四大核心设计理念</div>
                <div class="features-grid">
                    <div class="feature-card">
                        <h3>🛡️ 安全性 (Security)</h3>
                        <p>声明式 JSON 数据，非可执行代码。仅允许白名单组件，从根本上防止代码注入。</p>
                    </div>
                    <div class="feature-card">
                        <h3>🧠 LLM 友好</h3>
                        <p>扁平化组件列表，支持流式生成。Agent 可以一边“思考”一边输出界面结构。</p>
                    </div>
                    <div class="feature-card">
                        <h3>📱 跨框架 (Portable)</h3>
                        <p>同一份 JSON 可在 Flutter, React, SwiftUI 等多端渲染，保持原生体验。</p>
                    </div>
                    <div class="feature-card">
                        <h3>🔄 渐进式更新</h3>
                        <p>支持动态修改 UI 而无需全量刷新，实现高效的交互式体验。</p>
                    </div>
                </div>
            </div>

            <!-- Section 2: Architecture -->
            <div>
                <div class="section-title">⚙️ 工作原理：从 Agent 到 UI</div>
                <div class="architecture-box">
                    <div class="flow-diagram">
                        <div class="flow-step">
                            <div class="step-icon">👤</div>
                            <div class="step-title">用户</div>
                            <div class="step-desc">发送意图</div>
                        </div>
                        <div class="arrow"></div>
                        <div class="flow-step">
                            <div class="step-icon">🤖</div>
                            <div class="step-title">Agent</div>
                            <div class="step-desc">生成 A2UI JSON</div>
                        </div>
                        <div class="arrow"></div>
                        <div class="flow-step">
                            <div class="step-icon">📨</div>
                            <div class="step-title">传输</div>
                            <div class="step-desc">SSE / A2A</div>
                        </div>
                        <div class="arrow"></div>
                        <div class="flow-step">
                            <div class="step-icon">📲</div>
                            <div class="step-title">客户端</div>
                            <div class="step-desc">渲染原生组件</div>
                        </div>
                    </div>
                    <div style="margin-top: 15px; width: 100%; background: #f8f9fa; padding: 10px; border-radius: 6px; font-family: monospace; font-size: 11px; color: #5F6368; text-align: left;">
                        // Agent 发送示例：<br>
                        {<br>
                        &nbsp;&nbsp;"surfaceUpdate": {<br>
                        &nbsp;&nbsp;&nbsp;&nbsp;"component": { "Button": { ... } }<br>
                        &nbsp;&nbsp;}<br>
                        }
                    </div>
                </div>
            </div>

            <!-- Section 3: Comparison -->
            <div>
                <div class="section-title">⚖️ 方案对比与生态</div>
                <div class="comparison-container">
                    <table class="comp-table">
                        <thead>
                            <tr>
                                <th style="width: 25%">特性</th>
                                <th style="width: 25%; background-color: #E8F0FE;">A2UI (Google)</th>
                                <th style="width: 25%">MCP Apps</th>
                                <th style="width: 25%">ChatKit</th>
                            </tr>
                        </thead>
                        <tbody>
                            <tr class="highlight-row">
                                <td><strong>核心理念</strong></td>
                                <td><strong>原生优先 (Native First)</strong></td>
                                <td>Web 中心 / 资源获取</td>
                                <td>OpenAI 生态集成</td>
                            </tr>
                            <tr>
                                <td><strong>渲染方式</strong></td>
                                <td><span class="tag tag-blue">声明式 JSON</span> → 原生组件</td>
                                <td><span class="tag tag-gray">HTML/IFrame</span> 沙盒</td>
                                <td>预定义 UI 块</td>
                            </tr>
                            <tr>
                                <td><strong>安全性</strong></td>
                                <td>白名单组件库，无代码执行</td>
                                <td>Iframe 隔离</td>
                                <td>平台管控</td>
                            </tr>
                            <tr>
                                <td><strong>适用场景</strong></td>
                                <td>跨平台企业应用，多代理协作</td>
                                <td>工具快速集成，Web 插件</td>
                                <td>快速构建 OpenAI 应用</td>
                            </tr>
                        </tbody>
                    </table>
                </div>
            </div>

            <!-- Section 4: Use Cases -->
            <div style="flex: 1;">
                <div class="section-title">🧩 典型应用场景</div>
                <div class="use-cases-list">
                    <div class="use-case-item">
                        <div class="uc-icon">📊</div>
                        <div class="uc-content">
                            <h4>动态数据收集</h4>
                            <p>Agent 根据对话上下文，即时生成包含日期选择器、滑块的定制表单，而非多轮文本问答。</p>
                        </div>
                    </div>
                    <div class="use-case-item" style="border-left-color: var(--secondary-color);">
                        <div class="uc-icon">🏢</div>
                        <div class="uc-content">
                            <h4>企业级自适应工作流</h4>
                            <p>根据用户查询实时生成审批仪表板、数据可视化界面，提升办公协作效率。</p>
                        </div>
                    </div>
                    <div class="use-case-item" style="border-left-color: var(--warning-color);">
                        <div class="uc-icon">🤝</div>
                        <div class="uc-content">
                            <h4>多代理协作 (Multi-Agent)</h4>
                            <p>主代理委派任务给专业子代理（如订票助手），子代理直接返回 UI 载荷嵌入主界面。</p>
                        </div>
                    </div>
                </div>
            </div>
        </div>

        <!-- Footer -->
        <div class="footer">
            <h3>这是 Agent 的未来</h3>
            <p>当 Agent 靠界面引导、决策、执行，生成式 UI 才是真正的“第二前端”。<br>这不仅是 Web 的未来，更是 Agent 走向真实世界的关键一步。</p>
            <div class="links">
                <a href="https://a2ui.org" class="link-btn">访问 A2UI 官网</a>
                <a href="https://github.com/google/A2UI" class="link-btn">GitHub 开源</a>
            </div>
        </div>
    </div>

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A2UI Agent-to-User Interface AI 生成用户界面的声明式协议

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