Class: Phronomy::Agent::ExecutionCoordinator

Inherits:
Object
  • Object
show all
Defined in:
lib/phronomy/agent/execution_coordinator.rb

Defined Under Namespace

Classes: AgentTerminalCommand, PrepFailureCommand, Prepared

Instance Method Summary collapse

Constructor Details

#initialize(agent) ⇒ ExecutionCoordinator

Returns a new instance of ExecutionCoordinator.



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# File 'lib/phronomy/agent/execution_coordinator.rb', line 12

def initialize(agent)
  @agent = agent
end

Instance Method Details

#admit_execution(raw_message, thread_id:) ⇒ Object 



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# File 'lib/phronomy/agent/execution_coordinator.rb', line 254

def admit_execution(raw_message, thread_id:)
  execution = nil
  root = nil
  @agent.persistence.transaction do |tx|
    root = tx.agents.load(@agent.agent_id)
    raise Phronomy::Error, "agent is closed: #{@agent.agent_id}" if root.lifecycle_status == :closed
    input_ref = tx.contents.put_text(raw_message)
    input_record = JournalRecord.new(
      agent_id: @agent.agent_id,
      kind: :input_received,
      channel: :external,
      role: :user,
      content_ref: input_ref,
      correlation_id: thread_id,
      context_generation: root.transcript_generation,
      context_candidate: false
    )
    policy_descriptor = ContextPolicies::Default.new.descriptor
    execution = AgentExecution.start(
      agent_root: root,
      input_record: input_record,
      metadata: {
        "thread_id" => thread_id,
        "current_input_ref" => input_ref,
        "context_policy" => policy_descriptor.to_h
      }.compact
    )
    input_record = JournalRecord.from_h(
      input_record.to_h.merge("execution_id" => execution.execution_id)
    )
    execution = execution.with(
      execution_revision: 0,
      working_records: [input_record]
    )
    tx.executions.create_active(execution)
    next_root = root.with(
      agent_revision: root.agent_revision + 1,
      lifecycle_status: :active
    )
    tx.agents.save(root.agent_id, expected_revision: root.agent_revision, root: next_root)
    root = next_root
  end
  [execution, root]
end

#commit_preparation_failure(execution, error) ⇒ Object 



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# File 'lib/phronomy/agent/execution_coordinator.rb', line 299

def commit_preparation_failure(execution, error)
  translated_error = translated(error)
  root = nil
  @agent.persistence.transaction do |tx|
    current = tx.executions.load(execution.execution_id)
    root = tx.agents.load(@agent.agent_id)
    error_ref = tx.contents.put_json(
      "class" => translated_error.class.name,
      "message" => translated_error.message
    )
    audit_records = current.working_records.map do |record|
      JournalRecord.from_h(record.to_h.merge("context_candidate" => false))
    end
    terminal_status = terminal_status_for(translated_error)
    audit_records << JournalRecord.new(
      agent_id: @agent.agent_id,
      execution_id: current.execution_id,
      kind: execution_terminal_kind(terminal_status),
      channel: :audit,
      content_ref: error_ref,
      context_generation: root.transcript_generation,
      context_candidate: false
    )
    appended = tx.journals.append(
      root.agent_id,
      expected_position: root.journal_position,
      records: audit_records
    )
    failed = current.with(
      status: terminal_status,
      phase: terminal_status,
      working_records: [],
      error_ref: error_ref,
      terminal_reason: translated_error.class.name
    )
    tx.executions.save(
      current.execution_id,
      expected_revision: current.execution_revision,
      execution: failed
    )
    next_root = root.with(
      agent_revision: root.agent_revision + 1,
      journal_position: root.journal_position + appended.length,
      lifecycle_status: :idle
    )
    tx.agents.save(root.agent_id, expected_revision: root.agent_revision, root: next_root)
    root = next_root
  end
  @agent.__replace_root(root)
end

#deliver_on_event_loop(command) ⇒ Object 



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# File 'lib/phronomy/agent/execution_coordinator.rb', line 422

def deliver_on_event_loop(command)
  case command
  when PrepFailureCommand
    callback_error = @agent.send(
      :_deliver_stream_event,
      command.on_event_listener,
      StreamEvent.new(
        type: terminal_event_type(command.error),
        payload: {error: command.error}
      )
    )
    settle_after_terminal(
      command.result_task, callback_error,
      terminal_event_type(command.error), nil, command.error
    )
  when AgentTerminalCommand
    deliver_execution_terminal(command)
  else
    raise Phronomy::Error, "unknown terminal command: #{command.class}"
  end
end

#finish(activation, result_task, invocation, error) ⇒ Object 



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# File 'lib/phronomy/agent/execution_coordinator.rb', line 398

def finish(activation, result_task, invocation, error)
  runtime = Phronomy::Runtime.instance
  operation = runtime.blocking_io.submit do
    compute_terminal(activation, invocation, error)
  end
  operation.on_complete do |outcome, commit_error|
    command = AgentTerminalCommand.new(
      self, activation, result_task, outcome, commit_error
    )
    posted = runtime.event_loop.post(
      Phronomy::Event.new(
        type: :agent_terminal_ready,
        target_id: Phronomy::EventLoop::SYSTEM_CHANNEL_ID,
        payload: {command: command}
      )
    )
    settle_without_listener(activation, result_task, outcome, commit_error) unless posted
  end
rescue => caught
  fail_task(result_task, translated(caught))
end

#prepare(input, thread_id:, config:) ⇒ Object 



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# File 'lib/phronomy/agent/execution_coordinator.rb', line 161

def prepare(input, thread_id:, config:)
  raw_message = @agent.send(:extract_message, input)
  execution, active_root = admit_execution(raw_message, thread_id: thread_id)
  @agent.__replace_root(active_root)

  begin
    effective_config = thread_id ? config.merge(thread_id: thread_id) : config
    @agent.send(
      :check_cancellation!,
      effective_config,
      "invocation cancelled before input filtering"
    )
    filtered_input = @agent.send(:run_input_filters!, input)
    @agent.send(
      :check_cancellation!,
      effective_config,
      "invocation cancelled before context assembly"
    )
    filtered_message = @agent.send(:extract_message, filtered_input)
    manifest = nil
    manifest_ref = nil
    active_execution = nil

    @agent.persistence.transaction do |tx|
      root = tx.agents.load(@agent.agent_id)
      current = tx.executions.load(execution.execution_id)
      filtered_ref = tx.contents.put_text(filtered_message)
      input_record = JournalRecord.new(
        agent_id: @agent.agent_id,
        execution_id: current.execution_id,
        kind: :external_message,
        channel: :external,
        role: :user,
        content_ref: filtered_ref,
        correlation_id: thread_id,
        context_generation: root.transcript_generation,
        context_candidate: true
      )
      staged = current.with(
        execution_revision: current.execution_revision,
        working_records: current.working_records + [input_record],
        metadata: current.metadata.merge(
          "current_input_ref" => filtered_ref,
          "current_input_record_id" => input_record.record_id
        )
      )
      manifest, manifest_ref = ContextAssembler.new(
        agent: @agent,
        persistence: tx,
        policy: context_policy_for(staged)
      ).build_initial(
        input: filtered_input,
        agent_root: root,
        execution: staged,
        config: effective_config,
        patch: @agent.send(
          :run_before_llm_input_hooks,
          call_sequence: 1,
          config: effective_config
        )
      )
      active_execution = staged.with(
        status: :active,
        phase: :calling_llm,
        metadata: staged.metadata.merge(
          "base_manifest_ref" => manifest_ref,
          "manifest_ref" => manifest_ref,
          "manifest_refs" => [manifest_ref]
        )
      )
      tx.executions.save(
        current.execution_id,
        expected_revision: current.execution_revision,
        execution: active_execution
      )
    end

    projection = RubyLLMMaterializer.new(
      agent: @agent,
      persistence: @agent.persistence
    ).materialize(manifest: manifest, manifest_ref: manifest_ref)
    Prepared.new(
      execution: active_execution,
      runtime_projection: projection,
      filtered_input: filtered_input,
      config: effective_config
    )
  rescue => error
    commit_preparation_failure(execution, error)
    raise
  end
end

#prepare_next_llm_call(activation) ⇒ Object

Persists all Runtime events from the previous call, fixes the next Canonical LLM Input Manifest, and materializes the next Runtime Projection. This method is executed on the blocking adapter pool, never on EventLoop.



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# File 'lib/phronomy/agent/execution_coordinator.rb', line 111

def prepare_next_llm_call(activation)
  snapshot = activation.runtime_snapshot
  manifest = manifest_ref = updated = root = nil

  @agent.persistence.transaction do |tx|
    root = tx.agents.load(@agent.agent_id)
    current = tx.executions.load(activation.execution_id)
    encoded_records, call_records = encode_runtime_records(
      activation, tx: tx, snapshot: snapshot, context_candidate: true
    )
    staged = current.with(
      execution_revision: current.execution_revision,
      phase: :preparing_llm_call,
      working_records: current.working_records + encoded_records,
      llm_calls: current.llm_calls + call_records
    )
    invocation_config = activation.invocation&.config || {}
    patch = @agent.send(
      :run_before_llm_input_hooks,
      call_sequence: staged.llm_calls.length + 1,
      config: invocation_config
    )
    manifest, manifest_ref = ContextAssembler.new(
      agent: @agent, persistence: tx, policy: context_policy_for(staged)
    ).build_followup(
      base_manifest: activation.base_manifest,
      agent_root: root, execution: staged,
      config: invocation_config, patch: patch
    )
    refs = Array(staged.metadata["manifest_refs"]) + [manifest_ref]
    updated = staged.with(
      phase: :calling_llm,
      metadata: staged.metadata.merge(
        "manifest_ref" => manifest_ref, "manifest_refs" => refs
      )
    )
    tx.executions.save(current.execution_id,
      expected_revision: current.execution_revision, execution: updated)
  end

  activation.replace_execution(updated)
  activation.acknowledge_runtime_snapshot(snapshot)

  projection = RubyLLMMaterializer.new(
    agent: @agent, persistence: @agent.persistence
  ).materialize(manifest: manifest, manifest_ref: manifest_ref)
  activation.replace_runtime_projection(projection)
  projection
end

#register(prepared, result_task, mode:, approval_policy:, approval_listener:, on_event:) ⇒ Object 



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# File 'lib/phronomy/agent/execution_coordinator.rb', line 350

def register(prepared, result_task, mode:, approval_policy:, approval_listener:, on_event:)
  activation = AgentExecutionActivation.new(
    execution: prepared.execution,
    agent: @agent,
    runtime_projection: prepared.runtime_projection,
    coordinator: self,
    application_listener: on_event
  )
  @agent.persistence.activations.register(activation)
  runtime = Phronomy::Runtime.instance
  event_loop = runtime.event_loop
  effective_config = prepared.config.merge(
    phronomy_activation: activation,
    phronomy_runtime_projection: prepared.runtime_projection,
    phronomy_filtered_input: prepared.filtered_input,
    execution_id: prepared.execution.execution_id
  )
  session = Agent::AgentInvocationSessionBuilder.build(
    agent: @agent,
    input: prepared.filtered_input,
    config: effective_config,
    approval_policy: approval_policy,
    approval_listener: approval_listener,
    mode: mode,
    on_event: ->(event) { activation.record_event(event) },
    runtime: runtime
  )
  activation.invocation = session.context
  activation.session = session
  source_task = Phronomy::Task.deferred(name: "#{result_task.name}-source")
  source_task.on_complete do |invocation, error|
    finish(
      activation,
      result_task,
      invocation || session.context,
      error
    )
  end
  event_loop.register(session, completion: source_task)
rescue => error
  activation ||= AgentExecutionActivation.new(
    execution: prepared.execution, agent: @agent,
    runtime_projection: prepared.runtime_projection, coordinator: self,
    application_listener: on_event
  )
  finish(activation, result_task, activation.invocation, error)
end

#resume(execution_id, approval_request_id:, approved:, config: {}) ⇒ Object 



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# File 'lib/phronomy/agent/execution_coordinator.rb', line 45

def resume(
  execution_id,
  approval_request_id:,
  approved:,
  config: {}
)
  result_task = Phronomy::Task.deferred(
    name: "agent-approval-resume:#{execution_id}"
  )
  runtime = Phronomy::Runtime.instance
  preparation = runtime.blocking_io.submit do
    execution = @agent.persistence.executions.load(execution_id)
    unless execution.agent_id == @agent.agent_id && execution.status == :suspended
      raise ArgumentError,
        "execution is not a suspended execution of this agent: #{execution_id}"
    end

    activation = @agent.persistence.activations.fetch(execution_id)
    unless activation
      raise Phronomy::ExecutionRehydrationRequiredError,
        "no live activation for #{execution_id}; durable rehydration is required"
    end

    mark_resuming!(
      execution_id,
      approval_request_id: approval_request_id,
      approved: approved
    )
    activation
  end
  preparation.on_complete do |activation, error|
    if error
      fail_task(result_task, translated(error))
      next
    end

    begin
      start_resume(
        activation,
        result_task,
        approved: approved,
        config: config
      )
    rescue => start_error
      commit = runtime.blocking_io.submit do
        commit_failed(activation, activation.invocation, start_error)
      end
      commit.on_complete do |terminal, commit_error|
        if commit_error
          fail_task(result_task, commit_error)
        else
          @agent.persistence.activations.delete(execution_id)
          fail_task(result_task, terminal.fetch(:error))
        end
      end
    end
  end
  result_task
rescue => error
  fail_task(result_task, translated(error))
  result_task
end

#start(input, thread_id: nil, config: {}, mode: :invoke, approval_policy: nil, approval_listener: nil, on_event: nil) ⇒ Object 



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# File 'lib/phronomy/agent/execution_coordinator.rb', line 16

def start(
  input, thread_id: nil, config: {}, mode: :invoke,
  approval_policy: nil, approval_listener: nil, on_event: nil
)
  result_task = Phronomy::Task.deferred(name: "agent-#{@agent.agent_id}-#{mode}")
  runtime = Phronomy::Runtime.instance
  preparation = runtime.blocking_io.submit do
    prepare(input, thread_id: thread_id, config: config)
  end
  preparation.on_complete do |prepared, error|
    if error
      post_prep_failure(runtime, on_event, result_task, translated(error))
    else
      register(prepared, result_task, mode: mode,
        approval_policy: approval_policy,
        approval_listener: approval_listener,
        on_event: on_event)
    end
  end
  result_task
rescue => error
  if defined?(runtime) && runtime
    post_prep_failure(runtime, on_event, result_task, translated(error))
  else
    fail_task(result_task, translated(error))
  end
  result_task
end