A Copilot Studio agent must call tools exposed by an external system through an open standard. What should you design for?
Why B is the answer
Model Context Protocol extensibility
Model Context Protocol lets a Copilot Studio agent reach external tools through a standard interface.
In detail
- Model Context Protocol is the open standard for exposing tools.
- One MCP server can serve several agents.
Use case
An illustrative scenario, not a real incident.
A logistics firm already exposes tracking tools through an MCP server. A Copilot Studio agent connects to it, with no new integration.
See it in different ways
flowchart TD
A{"What must the agent reach?"} -->|"Tools with an open standard"| B["Model Context Protocol"]
A -->|"A service with a connector"| C["Connector"]
A -->|"An app with no API"| D["Computer use"]mindmap
root((Integration))
Has a connector
Connector
Open tool standard
Model Context Protocol
No API
Computer use
Azure AI services
Foundry ToolssequenceDiagram participant P0 as Copilot Studio agent participant P1 as MCP server participant P2 as External system P0->>P1: List and call tools P1->>P2: Run P2-->>P0: Result
Key point: MCP reuses a standard interface.
Why the other options are wrong
- A. Screen scraping the external system
- Screen scraping is fragile.
- C. Daily CSV uploads
- CSV uploads do not call tools.
- D. A custom fine-tuned model
- A fine-tuned model does not reach external tools.

