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4 changes: 4 additions & 0 deletions lib/mcp/instrumentation.rb
Original file line number Diff line number Diff line change
Expand Up @@ -8,6 +8,10 @@ def instrument_call(method, &block)
@instrumentation_data = {}
add_instrumentation_data(method: method)

if respond_to?(:client) && client
add_instrumentation_data(client: client)
end

result = yield block

result
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4 changes: 3 additions & 1 deletion lib/mcp/server.rb
Original file line number Diff line number Diff line change
Expand Up @@ -40,7 +40,7 @@ def initialize(method_name)

include Instrumentation

attr_accessor :description, :icons, :name, :title, :version, :website_url, :instructions, :tools, :prompts, :resources, :server_context, :configuration, :capabilities, :transport
attr_accessor :description, :icons, :name, :title, :version, :website_url, :instructions, :tools, :prompts, :resources, :server_context, :configuration, :capabilities, :transport, :client

def initialize(
description: nil,
Expand Down Expand Up @@ -74,6 +74,7 @@ def initialize(
@resource_index = index_resources_by_uri(resources)
@server_context = server_context
@configuration = MCP.configuration.merge(configuration)
@client = nil

validate!

Expand Down Expand Up @@ -299,6 +300,7 @@ def server_info
end

def init(request)
@client = request[:clientInfo] || request["clientInfo"] if request
{
protocolVersion: configuration.protocol_version,
capabilities: capabilities,
Expand Down