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test-repo/docs/.vitepress/theme/components/appendix/ai-protocols/A2AVisualDemo.vue
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<template>
<div class="a2a-visual-demo">
<div class="section-title">A2A 是什么</div>
<div class="intro-text">
A2AAgent-to-Agent Protocol Google 2025 4 月推出的<strong>Agent 之间相互协作的通信标准</strong>它让不同厂商不同框架的 Agent 能够相互发现分配任务交换信息就像给 AI 世界装上了"对讲机"
</div>
<div class="section-title">核心概念</div>
<div class="concepts-grid">
<div class="concept">
<div class="concept-title">Agent CardAgent 名片</div>
<div class="concept-desc">每个 Agent 公开的元数据包括能力描述版本号端点地址等相当于人的"名片"</div>
</div>
<div class="concept">
<div class="concept-title">Task任务</div>
<div class="concept-desc">Agent 之间传递的工作单元可以包含多轮对话文件附件等</div>
</div>
<div class="concept">
<div class="concept-title">Message消息</div>
<div class="concept-desc">Agent 之间的通信内容支持文本文件语音等多模态</div>
</div>
<div class="concept">
<div class="concept-title">SSEServer-Sent Events</div>
<div class="concept-desc">服务器推送技术用于实时任务进度更新</div>
</div>
</div>
<div class="section-title">什么时候用 A2A</div>
<div class="use-cases">
<div class="use-case">
<div class="use-case-title">当需要多个 Agent 协作完成复杂任务时</div>
<div class="use-case-desc">一个 Agent 负责需求分析一个负责写代码一个负责测试各自发挥专长</div>
</div>
<div class="use-case">
<div class="use-case-title">当需要集成不同厂商的 Agent </div>
<div class="use-case-desc">Google AgentAnthropic AgentOpenAI Agent 需要相互协作</div>
</div>
<div class="use-case">
<div class="use-case-title">当需要任务委托和进度追踪时</div>
<div class="use-case-desc"> Agent 分配任务给专家 Agent并实时接收进度更新</div>
</div>
</div>
<div class="section-title">如何使用 A2A</div>
<div class="usage-steps">
<div class="step">
<div class="step-num">1</div>
<div class="step-content">
<div class="step-title">发布 Agent Card</div>
<div class="step-desc"> /.well-known/agent.json 路径暴露 Agent 的能力描述</div>
</div>
</div>
<div class="step">
<div class="step-num">2</div>
<div class="step-content">
<div class="step-title">发现 Agent</div>
<div class="step-desc">通过 agents/get API 获取其他 Agent 的名片了解其能力</div>
</div>
</div>
<div class="step">
<div class="step-num">3</div>
<div class="step-content">
<div class="step-title">发送任务</div>
<div class="step-desc">通过 tasks/send API 发送任务支持 SSE 接收进度更新</div>
</div>
</div>
<div class="step">
<div class="step-num">4</div>
<div class="step-content">
<div class="step-title">获取结果</div>
<div class="step-desc">任务完成后通过 tasks/get API 获取最终结果</div>
</div>
</div>
</div>
</div>
</template>
<script setup>
</script>
<style scoped>
.a2a-visual-demo {
border: 1px solid var(--vp-c-divider);
border-radius: 6px;
background: var(--vp-c-bg-soft);
padding: 1.25rem;
margin: 1rem 0;
}
.section-title {
font-weight: 600;
font-size: 1rem;
color: var(--vp-c-text-1);
margin-bottom: 0.75rem;
margin-top: 1.25rem;
}
.section-title:first-child {
margin-top: 0;
}
.intro-text {
font-size: 0.9rem;
color: var(--vp-c-text-2);
line-height: 1.6;
margin-bottom: 1rem;
}
.intro-text strong {
color: var(--vp-c-brand);
}
.concepts-grid {
display: grid;
grid-template-columns: repeat(2, 1fr);
gap: 0.6rem;
margin-bottom: 1rem;
}
.concept {
padding: 0.75rem;
background: var(--vp-c-bg);
border-radius: 6px;
}
.concept-title {
font-weight: 600;
font-size: 0.85rem;
color: var(--vp-c-text-1);
margin-bottom: 0.3rem;
}
.concept-desc {
font-size: 0.75rem;
color: var(--vp-c-text-2);
line-height: 1.4;
}
.use-cases {
display: flex;
flex-direction: column;
gap: 0.6rem;
margin-bottom: 1rem;
}
.use-case {
padding: 0.75rem;
background: var(--vp-c-bg);
border-radius: 6px;
border-left: 3px solid var(--vp-c-brand);
}
.use-case-title {
font-weight: 600;
font-size: 0.85rem;
color: var(--vp-c-text-1);
margin-bottom: 0.3rem;
}
.use-case-desc {
font-size: 0.8rem;
color: var(--vp-c-text-2);
line-height: 1.4;
}
.usage-steps {
display: flex;
flex-direction: column;
gap: 0.6rem;
}
.step {
display: flex;
align-items: flex-start;
gap: 0.75rem;
padding: 0.75rem;
background: var(--vp-c-bg);
border-radius: 6px;
}
.step-num {
display: flex;
align-items: center;
justify-content: center;
width: 1.5rem;
height: 1.5rem;
background: var(--vp-c-brand);
color: white;
border-radius: 50%;
font-size: 0.75rem;
font-weight: 600;
flex-shrink: 0;
}
.step-content {
flex: 1;
}
.step-title {
font-weight: 600;
font-size: 0.85rem;
color: var(--vp-c-text-1);
margin-bottom: 0.2rem;
}
.step-desc {
font-size: 0.8rem;
color: var(--vp-c-text-2);
line-height: 1.4;
}
@media (max-width: 640px) {
.concepts-grid {
grid-template-columns: 1fr;
}
}
</style>