manual_slop/conductor/tracks/pipeline_pause_resume_20260306/plan.md

Implementation Plan: Pipeline Pause/Resume (pipeline_pause_resume_20260306)

Reference: Spec | Architecture Guide

Phase 1: Pause Mechanism

Focus: Add pause event to ConductorEngine

• Task 1.1: Initialize MMA Environment

• Task 1.2: Add pause event to ConductorEngine

  • WHERE: src/multi_agent_conductor.py ConductorEngine.__init__
  • WHAT: Threading event for pause control
  • HOW:

    self._pause_event: threading.Event = threading.Event()
    

• Task 1.3: Check pause in run loop

  • WHERE: src/multi_agent_conductor.py run()
  • WHAT: Wait while paused
  • HOW:

    while True:
     if self._pause_event.is_set():
      time.sleep(0.5)
      continue
     # Normal processing...
    

Phase 2: Pause/Resume Methods

Focus: Add control methods

• Task 2.1: Add pause method

  • WHERE: src/multi_agent_conductor.py
  • HOW: self._pause_event.set()

• Task 2.2: Add resume method

  • WHERE: src/multi_agent_conductor.py
  • HOW: self._pause_event.clear()

Phase 3: UI Controls

Focus: Add pause/resume buttons

• Task 3.1: Add pause/resume button

  • WHERE: src/gui_2.py MMA dashboard
  • WHAT: Toggle button for pause state
  • HOW:

    is_paused = engine._pause_event.is_set()
    label = "Resume" if is_paused else "Pause"
    if imgui.button(label):
     if is_paused:
      engine.resume()
     else:
      engine.pause()
    

• Task 3.2: Add visual indicator

  • WHERE: src/gui_2.py
  • WHAT: Banner or color when paused
  • HOW:

    if engine._pause_event.is_set():
     imgui.text_colored(vec4(255, 200, 100, 255), "PIPELINE PAUSED")
    

Phase 4: Testing

• Task 4.1: Write unit tests
• Task 4.2: Conductor - Phase Verification