来源: a2a-registry/browse Agent Card: https://llm-orchestration-traced-agent.getvda.ai/.well-known/agent-card.json A2A: https://llm-orchestration-traced-agent.getvda.ai/a2a/ LLM Orchestration Traced Agent: composes cryptography + langchain-core + mcp + opentelemetry-api + opentelemetry-sdk + python-jose — crypto, orchestration, agent-protocol, observability, jwt via A2A + MCP.