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docs: add PM Agent architecture and MCP integration documentation
## PM Agent Architecture Redesign ### Auto-Activation System - **pm-agent-auto-activation.md**: Behavior-based auto-activation architecture - 5 activation layers (Session Start, Documentation Guardian, Commander, Post-Implementation, Mistake Handler) - Remove manual `/sc:pm` command requirement - Auto-trigger based on context detection ### Responsibility Cleanup - **pm-agent-responsibility-cleanup.md**: Memory management strategy and MCP role clarification - Delete `docs/memory/` directory (redundant with Mindbase) - Remove `write_memory()` / `read_memory()` usage (Serena is code-only) - Clear lifecycle rules for each memory layer ## MCP Integration Policy ### Core Definitions - **mcp-integration-policy.md**: Complete MCP server definitions and usage guidelines - Mindbase: Automatic conversation history (don't touch) - Serena: Code understanding only (not task management) - Sequential: Complex reasoning engine - Context7: Official documentation reference - Tavily: Web search and research - Clear auto-trigger conditions for each MCP - Anti-patterns and best practices ### Optional Design - **mcp-optional-design.md**: MCP-optional architecture with graceful fallbacks - SuperClaude works fully without any MCPs - MCPs are performance enhancements (2-3x faster, 30-50% fewer tokens) - Automatic fallback to native tools - User choice: Minimal → Standard → Enhanced setup ## Key Benefits **Simplicity**: - Remove `docs/memory/` complexity - Clear MCP role separation - Auto-activation (no manual commands) **Reliability**: - Works without MCPs (graceful degradation) - Clear fallback strategies - No single point of failure **Performance** (with MCPs): - 2-3x faster execution - 30-50% token reduction - Better code understanding (Serena) - Efficient reasoning (Sequential) 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
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kazuki
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docs/mcp/mcp-optional-design.md
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# MCP Optional Design
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## 基本原則: MCPはオプション
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**重要**: SuperClaude Frameworkは **MCPなしでも完全に動作** します。
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```yaml
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Core Principle:
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MCPs: Optional enhancements (性能向上のオプション)
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Native Tools: Always available (常に利用可能)
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Fallback: Automatic (自動フォールバック)
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Design Philosophy:
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"MCPs enhance, but never required"
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"Native tools are the foundation"
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"Graceful degradation always"
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```
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## Fallback Strategy
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### MCP vs Native Tools
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```yaml
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Code Understanding:
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With MCP: Serena (シンボル追跡、高速)
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Without MCP: Grep + Read (テキスト検索、確実)
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Degradation: 機能維持、速度低下のみ
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Complex Analysis:
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With MCP: Sequential (構造化推論、トークン効率)
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Without MCP: Native reasoning (同等品質、トークン増)
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Degradation: トークン使用量増加のみ
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Documentation:
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With MCP: Context7 (公式ドキュメント、キュレーション済み)
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Without MCP: WebFetch + WebSearch (生データ、手動フィルタ)
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Degradation: 情報の質が若干低下
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Research:
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With MCP: Tavily (最適化検索、構造化結果)
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Without MCP: WebSearch (標準検索)
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Degradation: 検索効率が若干低下
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Memory:
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With MCP: Mindbase (自動管理、永続化)
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Without MCP: Session context only (セッション内のみ)
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Degradation: クロスセッション記憶なし
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```
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## PM Agent Without MCPs
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### Fully Functional Without Any MCP
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```yaml
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Session Start:
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With MCPs:
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- Git status ✅
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- Read CLAUDE.md ✅
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- Read docs/patterns/ ✅
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- Mindbase auto-load ⚡ (optional)
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Without MCPs:
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- Git status ✅
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- Read CLAUDE.md ✅
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- Read docs/patterns/ ✅
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- Session context only ✅
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Result: 完全動作（クロスセッション記憶以外）
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Pre-Implementation:
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With MCPs:
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- Read docs/patterns/ ✅
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- Read docs/mistakes/ ✅
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- Context7 official docs ⚡ (optional)
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- Confidence check ✅
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Without MCPs:
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- Read docs/patterns/ ✅
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- Read docs/mistakes/ ✅
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- WebSearch official docs ✅
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- Confidence check ✅
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Result: 完全動作（ドキュメント取得が若干遅い）
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During Implementation:
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With MCPs:
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- TodoWrite ✅
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- Serena code understanding ⚡ (optional)
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- Sequential complex analysis ⚡ (optional)
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Without MCPs:
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- TodoWrite ✅
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- Grep + Read code search ✅
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- Native reasoning ✅
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Result: 完全動作（大規模コードベースで遅い）
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Post-Implementation:
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With MCPs:
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- Self-evaluation ✅
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- docs/patterns/ update ✅
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- docs/mistakes/ update ✅
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- Mindbase auto-save ⚡ (optional)
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Without MCPs:
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- Self-evaluation ✅
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- docs/patterns/ update ✅
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- docs/mistakes/ update ✅
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- Session summary only ✅
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Result: 完全動作（クロスセッション学習以外）
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```
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## Detection & Auto-Fallback
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### MCP Availability Detection
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```yaml
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Runtime Detection:
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Method: Try MCP, catch error, fallback
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Example:
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try:
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serena.search_symbols("authenticate")
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except MCPNotAvailable:
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fallback_to_grep("authenticate")
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User Impact: None (transparent)
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Performance: Slightly slower on first detection
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Startup Check:
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Method: List available MCP servers
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Available MCPs: [mindbase, serena, sequential]
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Missing MCPs: [context7, tavily]
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→ Auto-configure fallbacks
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→ Log available MCPs
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→ Proceed normally
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```
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### Automatic Fallback Logic
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```yaml
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Serena MCP Unavailable:
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Task: "Refactor auth across 15 files"
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Attempt:
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1. Try Serena symbol tracking
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2. MCPNotAvailable error
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3. Fallback to Grep + Read
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Execution:
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grep -r "authenticate\|auth\|login" .
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Read all matched files
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Manual symbol tracking (slower but works)
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Output: Same result, slower execution
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Sequential MCP Unavailable:
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Task: "Design microservices architecture"
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Attempt:
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1. Try Sequential reasoning
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2. MCPNotAvailable error
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3. Fallback to native reasoning
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Execution:
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Use native Claude reasoning
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Break down problem manually
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Step-by-step analysis (more tokens)
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Output: Same quality, more tokens
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Context7 MCP Unavailable:
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Task: "How to use React Server Components"
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Attempt:
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1. Try Context7 official docs
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2. MCPNotAvailable error
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3. Fallback to WebSearch
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Execution:
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WebSearch "React Server Components official docs"
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WebFetch relevant URLs
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Manual filtering
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Output: Same info, less curated
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Mindbase MCP Unavailable:
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Impact: No cross-session memory
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Fallback:
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- Use session context only
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- docs/patterns/ for knowledge
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- docs/mistakes/ for learnings
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Limitation:
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- Can't recall previous sessions automatically
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- User can manually reference past work
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Workaround: "Recall our conversation about X"
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```
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## Configuration
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### MCP Enable/Disable
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```yaml
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User Configuration:
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Location: ~/.claude/mcp-config.json (optional)
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{
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"mcps": {
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"mindbase": "auto", // enabled if available
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"serena": "auto", // enabled if available
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"sequential": "auto", // enabled if available
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"context7": "disabled", // explicitly disabled
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"tavily": "enabled" // explicitly enabled
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},
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"fallback_mode": "graceful" // graceful | aggressive | disabled
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}
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Fallback Modes:
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graceful: Try MCP, fallback silently (default)
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aggressive: Prefer native tools, use MCP only when significantly better
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disabled: Never fallback, error if MCP unavailable
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```
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### Performance Comparison
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```yaml
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Task: Refactor 15 files
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With Serena MCP:
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Time: 30 seconds
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Tokens: 5,000
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Accuracy: 95%
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Without Serena (Grep fallback):
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Time: 90 seconds
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Tokens: 5,000
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Accuracy: 95%
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Difference: 3x slower, same quality
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---
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Task: Design architecture
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With Sequential MCP:
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Time: 60 seconds
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Tokens: 8,000
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Accuracy: 90%
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Without Sequential (Native reasoning):
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Time: 60 seconds
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Tokens: 15,000
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Accuracy: 90%
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Difference: Same speed, 2x tokens
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---
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Task: Fetch official docs
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With Context7 MCP:
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Time: 10 seconds
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Relevance: 95%
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Curated: Yes
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Without Context7 (WebSearch):
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Time: 30 seconds
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Relevance: 80%
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Curated: No
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Difference: 3x slower, less relevant
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```
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## Testing Without MCPs
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### Test Scenarios
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```yaml
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Scenario 1: No MCPs Installed
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Setup: Fresh Claude Code, no MCP servers
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Test Cases:
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- [ ] Session start works
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- [ ] CLAUDE.md loaded
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- [ ] docs/patterns/ readable
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- [ ] Code search via Grep
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- [ ] TodoWrite functional
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- [ ] Documentation updates work
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Expected: All core functionality works
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Scenario 2: Partial MCPs Available
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Setup: Only Mindbase installed
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Test Cases:
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- [ ] Session memory works (Mindbase)
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- [ ] Code search fallback (Grep)
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- [ ] Analysis fallback (Native)
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- [ ] Docs fallback (WebSearch)
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Expected: Memory works, others fallback
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Scenario 3: MCP Becomes Unavailable
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Setup: Start with MCP, MCP crashes mid-session
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Test Cases:
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- [ ] Detect MCP failure
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- [ ] Auto-fallback to native
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- [ ] Session continues normally
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- [ ] User not impacted
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Expected: Graceful degradation
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Scenario 4: MCP Performance Issues
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Setup: MCP slow or timeout
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Test Cases:
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- [ ] Timeout detection (5 seconds)
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- [ ] Auto-fallback
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- [ ] Log performance issue
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- [ ] Continue with native
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Expected: No blocking, auto-fallback
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```
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## Documentation Strategy
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### User-Facing Documentation
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```yaml
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Getting Started:
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"SuperClaude works out of the box without any MCPs"
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"MCPs are optional performance enhancements"
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"Install MCPs for better performance, not required"
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Installation Guide:
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Minimal Setup:
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- Clone repo
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- Run installer
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- Start using (no MCPs)
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Enhanced Setup (Optional):
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- Install Mindbase (cross-session memory)
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- Install Serena (faster code understanding)
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- Install Sequential (token efficiency)
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- Install Context7 (curated docs)
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- Install Tavily (better search)
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Performance Comparison:
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"With MCPs: 2-3x faster, 30-50% fewer tokens"
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"Without MCPs: Slightly slower, works perfectly"
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"Recommendation: Start without, add MCPs if needed"
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```
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### Developer Documentation
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```yaml
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MCP Integration Guidelines:
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Rule 1: Always provide fallback
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✅ try_mcp_then_fallback()
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❌ require_mcp_or_fail()
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Rule 2: Silent degradation
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✅ Fallback transparently
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❌ Show errors to user
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Rule 3: Test both paths
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✅ Test with and without MCPs
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❌ Only test with MCPs
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Rule 4: Document fallback behavior
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✅ "Uses Grep if Serena unavailable"
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❌ "Requires Serena MCP"
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Rule 5: Performance expectations
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✅ "30% slower without MCP"
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❌ "Not functional without MCP"
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```
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## Benefits of Optional Design
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```yaml
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Accessibility:
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✅ No barriers to entry
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✅ Works on any system
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✅ No additional dependencies
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✅ Easy onboarding
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Reliability:
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✅ No single point of failure
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✅ Graceful degradation
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✅ Always functional baseline
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✅ MCP issues don't block work
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Flexibility:
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✅ Users choose their setup
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✅ Incremental enhancement
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✅ Mix and match MCPs
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✅ Easy testing/debugging
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Maintenance:
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✅ Framework works independently
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✅ MCP updates don't break framework
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✅ Easy to add new MCPs
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✅ Easy to remove problematic MCPs
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```
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## Migration Path
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```yaml
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Current Users (No MCPs):
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Status: Already working
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Action: None required
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Benefit: Can add MCPs incrementally
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New Users:
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Step 1: Install framework (works immediately)
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Step 2: Use without MCPs (full functionality)
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Step 3: Add MCPs if desired (performance boost)
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MCP Adoption:
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Mindset: "Nice to have, not must have"
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Approach: Incremental enhancement
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Philosophy: Core functionality always works
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```
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## Conclusion
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```yaml
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Core Message:
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"SuperClaude Framework is MCP-optional by design"
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"MCPs enhance performance, not functionality"
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"Native tools provide reliable baseline"
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"Choose your enhancement level"
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User Choice:
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Minimal: No MCPs, full functionality
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Standard: Mindbase only, cross-session memory
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Enhanced: All MCPs, maximum performance
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Custom: Pick and choose based on needs
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Design Success:
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✅ Zero dependencies for basic operation
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✅ Graceful degradation always
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✅ User empowerment through choice
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✅ Reliable baseline guaranteed
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```
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Reference in New Issue
Block a user