Class: Elelem::MCP::Client

Inherits:
Object
  • Object
show all
Defined in:
lib/elelem/mcp/client.rb

Overview

https://modelcontextprotocol.io/specification/2025-11-25/server/tools.md

Constant Summary collapse

CONFIG_PATHS = 
[
  "~/.agents/mcp.json",
  ".agents/mcp.json"
].freeze

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(configurations = CONFIG_PATHS) ⇒ Client

Returns a new instance of Client.



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# File 'lib/elelem/mcp/client.rb', line 16

def initialize(configurations = CONFIG_PATHS)
  @config = load_config(configurations)
  @servers = {}
end

Class Method Details

.memoized ⇒ Object 



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# File 'lib/elelem/mcp/client.rb', line 12

def self.memoized
  @memoized ||= new.tap { |client| at_exit { client.close } }
end

Instance Method Details

#close ⇒ Object 



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# File 'lib/elelem/mcp/client.rb', line 37

def close
  @servers.each_value(&:close)
end

#tools ⇒ Object 



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# File 'lib/elelem/mcp/client.rb', line 21

def tools
  @config.fetch("mcpServers", {}).flat_map do |name, _|
    server(name).tools.map do |tool|
      [
        "#{name}_#{tool["name"]}",
        {
          description: tool["description"],
          params: symbolize(tool.dig("inputSchema", "properties") || {}),
          required: tool.dig("inputSchema", "required") || [],
          fn: ->(a) { server(name).call(tool["name"], a) }
        }
      ]
    end
  end.to_h
end