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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
| Concept | Description |
|---|---|
| Agent Cards | Metadata describing an agent's capabilities, skills, and endpoints |
| Task Delegation | Agent A asks Agent B to handle a sub-task, receives results back |
| Cross-Vendor Agents | Copilot 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-4o / GPT-4o / OpenAI o1 for general-purpose and deep analytical tasks
- Anthropic Claude 3.7 Sonnet / Claude 3.5 Sonnet for complex reasoning and deep-context analysis
- Mistral Large / Medium as third-party model options
- 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