Do I need tools? Do I need MCP?
Words made simple
A few useful meanings before you read the explanation.
- MCP
- A shared protocol for connecting AI applications to tools and resources. It does not replace permission checks or application security.
- API
- A way for one piece of software to ask another for data or an action. A claims API might return the current status of a claim.
- Tenant
- A customer or organization whose data must stay separate from other customers in a shared application.
- Use narrow tools for fresh data and actions.
- MCP is useful when approved hosts need a shared discoverable integration, not merely because the model has one function call.
- Keep the existing business API behind either a direct wrapper or the MCP facade.
Authority: caller identity, tenant, permission, and approval must be established independently of model arguments. A tool should expose a business capability, not arbitrary database or network power.
Can you explain it without the notes?
Do I need tools? Do I need MCP?
Use your own words. Explain an example and one limitation before checking the explanation.
Check your explanation
Use narrow tools for fresh data and actions. MCP is useful when approved hosts need a shared discoverable integration, not merely because the model has one function call. Keep the existing business API behind either a direct wrapper or the MCP facade.
Turn this concept into a clear answer.
Practice this conceptAdapted from 13_AI.MD · “4. Do I need tools? Do I need MCP?”. Examples are study fragments; framework behavior can depend on your version.