pi subagents and workflow skill plus HA

pi/.pi/agent/skills/subagent-workflows/SKILL.md

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+---
+name: subagent-workflows
+description: "Reference for the subagent catalog, workflows, and model assignments. Load when working with /implement, /plan, /review, /implement-critical, or when deciding which agents to use."
+---
+
+# Subagent Catalog & Workflows
+
+## Agent Roster
+
+| Agent | Model | Role | Cost Profile |
+|-------|-------|------|-------------|
+| **router** | Qwen 122B-A10B | Evaluates task complexity, picks workflow | Cheap MoE |
+| **scout** | Qwen 122B-A10B | Fast codebase recon, structured findings | Cheap MoE |
+| **deep-scout** | Qwen 27B (dense) | Thorough architectural exploration | Moderate |
+| **planner** | Qwen Max (frontier) | Detailed implementation plans | Frontier, free via qwen.ai |
+| **plan-reviewer** | Claude Opus 4.6 | Reviews plans before implementation | $$$ but low volume |
+| **coder** | Qwen Max | Primary implementation | Frontier, free via qwen.ai |
+| **coder-parallel** | Qwen 397B-A17B | Parallel implementation tasks | Strong MoE, parallelizable |
+| **coder-claude** | Claude Sonnet 4.6 | Complex/unfamiliar implementation | $$ elite coder |
+| **reviewer** | Claude Opus 4.6 | Cross-family code review | $$$ but low volume |
+| **reviewer-quick** | Claude Haiku 4.5 | Fast cross-family sanity check | $ |
+| **fixer** | Claude Sonnet 4.6 | Applies review feedback precisely | $$ |
+
+## Workflows
+
+### `/implement <task>` — Adaptive (auto-selects pipeline)
+Router evaluates → SMALL/MEDIUM/LARGE/HUGE → runs appropriate chain.
+
+### `/plan <task>` — Plan only
+Scout → Planner (Max) → Plan Reviewer (Opus). No implementation.
+
+### `/review <files or description>` — Opus review
+Direct Opus review on changes.
+
+### `/implement-critical <task>` — Maximum quality
+Deep Scout → Planner → Opus Plan Review → Sonnet Coder → Opus Review → Fixer.
+
+## Design Principles
+
+1. **Qwen-first**: Max for planning and primary coding (free, frontier). MoE models for volume tasks.
+2. **Cross-family review**: Qwen codes → Claude reviews. Different training = different blind spots caught.
+3. **Opus for review, not implementation**: Low output tokens, maximum leverage. Finding bugs > writing code.
+4. **Sonnet 4.6 for precision edits**: Best instruction-following for applying review fixes.
+5. **Adaptive routing**: Don't run 5-agent pipeline for a one-line fix.