Lifecycle

The Lifecycle of an MCP connection describes the stages from initial connection to final termination.

Stages

1. Initialization: Handshake and capability negotiation.
2. Operation: Repeated cycles of tool calls, resource reads, and notifications.
3. Shutdown: Graceful closing of the transport channel.

Managing the lifecycle correctly ensures that resources (like network connections or file handles) are properly cleaned up when the model finishes its task.

Questions & Answers

What are the three main stages of the MCP Lifecycle?

The stages are: 1. Initialization (handshake and negotiation), 2. Operation (the active phase of tool calls and resource reads), and 3. Shutdown (graceful closing of the connection).

Why is proper lifecycle management important in MCP?

Correct management ensures that system resources, such as network connections and file handles, are properly allocated during use and thoroughly cleaned up once the task is complete, preventing resource leaks.

When does the "Operation" stage of the lifecycle begin?

The Operation stage begins immediately after the successful completion of the initialization handshake, at which point the client can start making tool calls and reading resources.