manual_slop/conductor/tracks/per_ticket_model_20260306/plan.md

Implementation Plan: Per-Ticket Model Override (per_ticket_model_20260306)

Reference: Spec | Architecture Guide

Phase 1: Model Override Field

Focus: Add field to Ticket dataclass

• Task 1.1: Initialize MMA Environment

• Task 1.2: Add model_override to Ticket (245653c)

  • WHERE: src/models.py Ticket dataclass
  • WHAT: Add optional model override field
  • HOW:

    @dataclass
    class Ticket:
     # ... existing fields ...
     model_override: Optional[str] = None
    

• Task 1.3: Update serialization (245653c)

  • WHERE: src/models.py Ticket.to_dict() and from_dict()
  • WHAT: Include model_override
  • HOW: Add field to dict conversion

Phase 2: Model Dropdown UI

Focus: Add model selection to ticket display

• Task 2.1: Get available models list

  • WHERE: src/gui_2.py or from cost_tracker
  • WHAT: List of available models
  • HOW:

    AVAILABLE_MODELS = ["gemini-2.5-flash-lite", "gemini-2.5-flash", "gemini-3.1-pro-preview", "claude-3-5-sonnet", "deepseek-v3"]
    

• Task 2.2: Add dropdown to ticket UI

  • WHERE: src/gui_2.py ticket rendering
  • WHAT: Combo for model selection
  • HOW:

    current_model = ticket.model_override or "Default"
    if imgui.begin_combo("Model", current_model):
     if imgui.selectable("Default", ticket.model_override is None):
      ticket.model_override = None
     for model in AVAILABLE_MODELS:
      if imgui.selectable(model, ticket.model_override == model):
       ticket.model_override = model
     imgui.end_combo()
    

Phase 3: Visual Indicator

Focus: Show when override is active

• Task 3.1: Color-code override tickets
  • WHERE: src/gui_2.py ticket rendering
  • WHAT: Visual distinction for override
  • HOW:

    if ticket.model_override:
     imgui.text_colored(vec4(255, 200, 100, 255), f"[{ticket.model_override}]")
    

Phase 4: Execution Integration

Focus: Use override in worker execution

• Task 4.1: Check override in ConductorEngine.run()
  • WHERE: src/multi_agent_conductor.py run()
  • WHAT: Use ticket.model_override if set
  • HOW:

    if ticket.model_override:
     model_name = ticket.model_override
    else:
     # Use existing escalation logic
     models = ["gemini-2.5-flash-lite", "gemini-2.5-flash", "gemini-3.1-pro-preview"]
     model_idx = min(ticket.retry_count, len(models) - 1)
     model_name = models[model_idx]
    

Phase 5: Testing

• Task 5.1: Write unit tests
• Task 5.2: Conductor - Phase Verification