WIP almost done with track planning

conductor/tracks/pipeline_pause_resume_20260306/index.md

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+# Pipeline Pause/Resume
+
+**Track ID:** pipeline_pause_resume_20260306
+
+**Status:** Planned
+
+**See Also:**
+- [Spec](./spec.md)
+- [Plan](./plan.md)

conductor/tracks/pipeline_pause_resume_20260306/metadata.json

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+{
+  "id": "pipeline_pause_resume_20260306",
+  "name": "Pipeline Pause/Resume",
+  "status": "planned",
+  "created_at": "2026-03-06T00:00:00Z",
+  "updated_at": "2026-03-06T00:00:00Z",
+  "type": "feature",
+  "priority": "medium"
+}

conductor/tracks/pipeline_pause_resume_20260306/plan.md

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-# Implementation Plan: Pipeline Pause/Resume (pipeline_pause_resume)
+# Implementation Plan: Pipeline Pause/Resume (pipeline_pause_resume_20260306)
 
-## Phase 1: Research & Design
-- [ ] Task: Analyze existing backend implementation
-- [ ] Task: Design GUI/UX approach
-- [ ] Task: Conductor - User Manual Verification
+## Phase 1: Pause Mechanism
+- [ ] Task: Initialize MMA Environment
+- [ ] Task: Add pause state
+    - WHERE: src/multi_agent_conductor.py
+    - WHAT: Global pause flag
+    - HOW: threading.Event
+- [ ] Task: Implement pause
+    - WHERE: src/multi_agent_conductor.py
+    - WHAT: Stop worker spawning
+    - HOW: Check pause flag
 
-## Phase 2: Implementation
-- [ ] Task: Implement feature
-- [ ] Task: Write tests
-- [ ] Task: Conductor - User Manual Verification
+## Phase 2: Resume Mechanism
+- [ ] Task: Implement resume
+    - WHERE: src/multi_agent_conductor.py
+    - WHAT: Continue from pause
+    - HOW: Clear flag, restart workers
 
-## Phase 3: Verification
-- [ ] Task: Run test suite
-- [ ] Task: Verify coverage
-- [ ] Task: Conductor - Phase Completion Verification
+## Phase 3: UI
+- [ ] Task: Add pause button
+    - WHERE: src/gui_2.py
+    - WHAT: Toggle pause state
+    - HOW: imgui.button
+- [ ] Task: Add visual indicator
+    - WHERE: src/gui_2.py
+    - WHAT: Show paused status
+    - HOW: Banner or icon
+
+## Phase 4: Verification
+- [ ] Test pause/resume
+- [ ] Conductor - Phase Verification

conductor/tracks/pipeline_pause_resume_20260306/spec.md

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-# Track Specification: Pipeline Pause/Resume
+# Track Specification: Pipeline Pause/Resume (pipeline_pause_resume_20260306)
 
 ## Overview
-Global pause/resume for entire DAG execution pipeline.
+Add global pause/resume for entire DAG execution pipeline. Allow user to freeze all worker activity and resume later.
 
-## Current State Audit
-### Already Implemented
-- DAG engine execution
-- auto_queue mode
-
-### Gaps to Fill
-- No pause mechanism
-- No resume capability
-
-## Goals
-- Global pause button
-- Resume button
-- Frozen state visualization
+## Architectural Constraints
+- **State Preservation**: Worker state MUST be preserved across pause.
+- **Atomic Operation**: Pause/Resume MUST be atomic.
 
 ## Functional Requirements
-- Pause all workers
-- Resume from paused state
-- State persistence
+- **Pause Button**: Freeze all worker activity.
+- **Resume Button**: Continue from paused state.
+- **Visual Indicator**: Show pipeline is paused.
+- **State Display**: Show which workers are paused.
 
-## Non-Functional Requirements
-- Worker state preservation
-- Clean resume
+## Acceptance Criteria
+- [ ] Pause button freezes pipeline.
+- [ ] Resume button continues execution.
+- [ ] Visual indicator shows paused state.
+- [ ] Worker states preserved.
+- [ ] No data loss on resume.