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A2A引入了Agent Card概念，每个Agent发布一份结构化的能力声明文档，描述自己能处理的任务类型、输入输出格式和认证要求

3

Sources

65%

Confidence

Long-term

Relevance

6/1/2026

First Seen

Sources

AI Agent开源课程：36章从ReAct到Claude Code全栈实战指南

githubCallous-0923

Related Entities

A2Aconcept Agent Cardconcept

Related Claims

UnverifiedA2A协议基于HTTP/SSE构建，引入了Agent Card概念，每个Agent发布描述自身能力的元数据卡片80% similar UnverifiedA2A协议中每个智能体会在服务器固定路径`/.well-known/agent`发布Agent Card，包含Name、Skills、Auth等信息72% similar UnverifiedAgent Card是A2A协议中智能体的标准化名片，以JSON格式声明能力、输入输出模式、认证方式等，但不暴露内部模型和工具实现72% similar UnverifiedA2A协议通过Agent Card让每个Agent暴露能力清单，实现Agent之间零代码、零API契约的即插即用连接72% similar UnverifiedA2A协议的核心设计原则是Agent之间基于声明的能力来协作，而不是互相检查对方的内部实现71% similar

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