Class: Kodo::Router

Inherits:
Object
  • Object
show all
Defined in:
lib/kodo/router.rb

Constant Summary collapse

TOOL_CLASSES = 
[
  Tools::GetCurrentTime,
  Tools::RememberFact,
  Tools::ForgetFact,
  Tools::RecallFacts,
  Tools::UpdateFact,
  Tools::SetReminder,
  Tools::ListReminders,
  Tools::DismissReminder,
  Tools::WebSearch,
  Tools::FetchUrl,
  Tools::StoreSecret
].freeze

Instance Method Summary collapse

Constructor Details

#initialize(memory:, audit:, prompt_assembler: nil, knowledge: nil, reminders: nil, search_provider: nil, broker: nil, on_secret_stored: nil) ⇒ Router

Returns a new instance of Router.



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# File 'lib/kodo/router.rb', line 19

def initialize(memory:, audit:, prompt_assembler: nil, knowledge: nil, reminders: nil,
               search_provider: nil, broker: nil, on_secret_stored: nil)
  @memory = memory
  @audit = audit
  @prompt_assembler = prompt_assembler || PromptAssembler.new
  @knowledge = knowledge
  @reminders = reminders
  @search_provider = search_provider
  @broker = broker
  @on_secret_stored = on_secret_stored
  @tools = build_tools
end

Instance Method Details

#reload_tools!(search_provider: nil) ⇒ Object

Rebuild the tool list (e.g. after a new secret activates a provider)



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# File 'lib/kodo/router.rb', line 33

def reload_tools!(search_provider: nil)
  @search_provider = search_provider if search_provider
  @tools = build_tools
end

#route(message, channel:) ⇒ Object

Process an incoming message and return a response message



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# File 'lib/kodo/router.rb', line 39

def route(message, channel:)
  chat_id = message.metadata[:chat_id] || message.metadata['chat_id']

  # Fresh per-turn context: nonce for content isolation, web_fetched flag
  turn_context = Web::TurnContext.new
  set_turn_context(turn_context)

  # Set channel context on SetReminder so it knows where to deliver
  set_reminder_context(channel.channel_id, chat_id)

  # Store the user's message
  @memory.append(chat_id, role: 'user', content: message.content)

  @audit.log(
    event: 'message_received',
    channel: message.channel_id,
    detail: "from:#{message.metadata[:sender_name] || 'user'} len:#{message.content.length}"
  )

  # Assemble the system prompt from layered files
  knowledge_text = @knowledge&.for_prompt
  system_prompt = @prompt_assembler.assemble(
    runtime_context: {
      model: Kodo.config.llm_model,
      channels: channel.channel_id,
      web_nonce: turn_context.nonce
    },
    knowledge: knowledge_text,
    capabilities: build_capabilities_from_tools
  )

  # Build a fresh RubyLLM chat with conversation history
  chat = LLM.chat
  chat.with_instructions(system_prompt)

  # Register tools with the LLM chat
  if @tools.any?
    reset_tool_rate_limits!
    chat.with_tools(*@tools)
  end

  history = @memory.conversation(chat_id)
  prior = history[0...-1] || []
  prior.each do |msg|
    chat.add_message(role: msg[:role], content: msg[:content])
  end

  Kodo.logger.debug("Routing to #{Kodo.config.llm_model} with #{history.length} messages")
  response = chat.ask(message.content)
  response_text = response.content

  @memory.append(chat_id, role: 'assistant', content: response_text)

  @audit.log(
    event: 'message_sent',
    channel: message.channel_id,
    detail: "len:#{response_text.length}"
  )

  Message.new(
    channel_id: message.channel_id,
    sender: :agent,
    content: response_text,
    metadata: {
      chat_id: chat_id,
      reply_to_message_id: message.metadata[:message_id]
    }
  )
end