chore(conductor): Add new track 'MMA Utilization Refinement'

conductor/tracks/mma_utilization_refinement_20260226/spec.md

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+# Specification: MMA Utilization Refinement
+
+## Overview
+Refine the Multi-Model Architecture (MMA) implementation within the Conductor framework to ensure clear role segregation, proper tool permissions, and improved observability for sub-agents.
+
+## Goals
+- Enforce Tier 1 as the track creator and Tier 2 as the track executor.
+- Restore and fix segregated skills (`mma-tier1` through `mma-tier4`).
+- Provide Tier 3 & 4 with direct file I/O tools to reduce Tier 2 context bloat.
+- Implement AST-based "Skeleton Views" for Tier 3 context injection.
+- Create a non-polluting verbose log/feed for sub-agent operations.
+- Remove "Context Amnesia" from Tier 2 while maintaining it for Tiers 3 & 4.
+
+## Functional Requirements
+1. **Skill Refinement:**
+   - Update `mma-tier1-orchestrator` to focus on `/conductor:setup` and `/conductor:newTrack`.
+   - Update `mma-tier2-tech-lead` to manage `/conductor:implement`. It must maintain persistent context for the duration of a track session (no amnesia).
+   - Update `mma-tier3-worker` and `mma-tier4-qa` to be stateless (Context Amnesia) but equipped with `read_file`, `write_file`, and codebase exploration tools.
+2. **AST Extraction (Skeleton Views):**
+   - Enhance `mcp_client.py` (or a dedicated utility) to generate Python skeletons (signatures and docstrings) using `tree-sitter`.
+   - Update `mma_exec.py` to utilize these skeletons for modules NOT being actively worked on by Tier 3.
+3. **Observability:**
+   - Ensure sub-agent reasoning and tool calls are logged to a dedicated log file (e.g., `logs/mma_subagents.log`) or separate shell to avoid polluting the main session history.
+4. **Workflow Update:**
+   - Update `conductor/workflow.md` to reflect the new tier responsibilities and tool access rules.
+
+## Acceptance Criteria
+- [ ] Tier 1 can successfully initialize a track.
+- [ ] Tier 2 can delegate a coding task to Tier 3.
+- [ ] Tier 3 receives a "Skeleton View" of relevant dependencies instead of full files.
+- [ ] Tier 3 can write files back to the project.
+- [ ] Tier 4 can analyze logs and provide summaries.
+- [ ] Sub-agent verbose output is captured in a dedicated log.
+- [ ] Tier 2 context remains focused on the high-level plan, not implementation details.