Record

initialize-request

========================================================================= Request/Response Types: Initialize

Initialize request parameters

Sent by client to begin an MCP session.

Spec: https://spec.modelcontextprotocol.io/specification/2025-06-18/schema#initializerequest

record initialize-request {
  capabilities: client-capabilities,
  client-info: implementation,
  protocol-version: protocol-version,
}

Fields

NameTypeDescription
capabilitiesclient-capabilities

Client capabilities

client-infoimplementation

Client implementation info

protocol-versionprotocol-version

Protocol version client supports

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