# Implementation Plan: MMA Multi-Worker Visualization (mma_multiworker_viz_20260306)

> **Reference:** [Spec](./spec.md) | [Architecture Guide](../../../docs/guide_architecture.md)

## Phase 1: Stream Structure Enhancement
Focus: Extend existing mma_streams for per-worker tracking

- [x] Task 1.1: Initialize MMA Environment (skipped - already in context)
- [x] Task 1.2: Review existing mma_streams structure - Already exists: Dict[str, str]

## Phase 2: Worker Status Tracking
Focus: Track worker status separately

- [x] Task 2.1: Add worker status dict - Added _worker_status dict to app_controller.py
- [x] Task 2.2: Update status on worker events - Status updates to "completed" when streaming ends

## Phase 3: Multi-Pane Display
Focus: Display all active streams

- [x] Task 3.1: Iterate all Tier 3 streams - Shows all workers with status indicators (color-coded)

## Phase 4: Stream Pruning
Focus: Limit memory per stream

- [x] Task 4.1: Prune stream on append - MAX_STREAM_SIZE = 10KB, prunes oldest when exceeded

## Phase 5: Testing
- [x] Task 5.1: Write unit tests - Tests pass (hooks, api_hook_client, mma_dashboard_streams)
- [ ] Task 5.2: Conductor - Phase Verification
