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A2A Protocol in Copilot Studio

🤝 A2A & Multi-Agent⏱ 15 min⭐ 900 BASE XP

Multi-Agent Orchestration

As of 2026, Copilot Studio supports multi-agent systems where specialized agents collaborate using the Agent-to-Agent (A2A) protocol. Agents can now communicate with, delegate tasks to, and share work with other first-, second-, and third-party agents.

A2A Integration

ConceptDescription
Agent CardsMetadata describing an agent's capabilities, skills, and endpoints
Task DelegationAgent A asks Agent B to handle a sub-task, receives results back
Cross-Vendor AgentsCopilot Studio agents can collaborate with agents built in LangGraph, CrewAI, or custom frameworks

Expanded Model Choice

To optimize for cost, speed, and reasoning quality, Copilot Studio now allows selecting from:

  • GPT-4.1 / GPT-5 series for general-purpose tasks
  • Anthropic Claude Sonnet / Opus for complex reasoning
  • Custom/fine-tuned models for domain-specific tasks

Validation & Testing

Enterprise agent deployments require rigorous testing:

  • Evaluation Test Sets: Predefined Q&A pairs with expected outputs to measure accuracy
  • Automated Evaluation API: Programmatic testing of agent responses against golden benchmarks
  • Multi-Turn Simulations: Automated conversations that test complex, multi-step scenarios
💡 Key Insight: The validation pipeline should run on every deployment: create test sets → run automated evaluations → pass threshold → deploy to production. This is CI/CD for agents.
SYNAPSE VERIFICATION
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What is the A2A protocol in Copilot Studio?
An encryption standard
A protocol that enables multi-agent collaboration where specialized agents can communicate, delegate tasks, and share work
A database query language
A UI framework
Watch: 139x Rust Speedup
A2A Protocol in Copilot Studio | A2A & Multi-Agent — Power Platform Academy