{
    "track_id": "mma_pipeline_fix_20260301",
    "description": "Fix Tier 3 worker responses not reaching mma_streams in GUI, fix token usage tracking stubs.",
    "type": "fix",
    "status": "new",
    "priority": "P0",
    "blocks": ["comprehensive_gui_ux_20260228", "simulation_hardening_20260301"],
    "created_at": "2026-03-01T15:45:00Z",
    "updated_at": "2026-03-01T15:45:00Z"
}