Merge pull request #4 from syui/claude/ai-memory-system-011CUps6H1mBNe6zxKdkcyUj

Fix compilation errors in Layer 4 caching

README.md

@@ -4,6 +4,8 @@ AI memory system with psychological analysis for Claude via MCP.
 
 **Current: Layers 1-4 Complete** - Memory storage, AI interpretation, personality analysis, integrated profile, and relationship inference.
 
+**Planned: Layer 5** - Knowledge sharing platform combining useful insights with author personality.
+
 ## Features
 
 ### Layer 1: Pure Memory Storage
@@ -34,6 +36,12 @@ AI memory system with psychological analysis for Claude via MCP.
 - 🎮 **Game Ready**: Foundation for companion apps, games, VTubers
 - 🔒 **Opt-in**: Enable only when needed with `--enable-layer4` flag
 
+### Layer 5: Knowledge Sharing (Planned)
+- 💡 **Information + Personality**: Share AI interactions with context
+- 🌐 **SNS for AI Era**: Useful insights combined with author's unique perspective
+- 🔒 **Privacy-First**: Share essence, not raw data
+- 📊 **Showcase**: Display how AI understands you
+
 ### General
 - 🛠️ **MCP Integration**: Works seamlessly with Claude Code
 - 🧪 **Well-tested**: Comprehensive test coverage
@@ -223,8 +231,8 @@ Multi-layer system design:
 - **Layer 3** ✅ Complete: Big Five personality analysis
 - **Layer 3.5** ✅ Complete: Integrated profile (unified summary)
 - **Layer 4** ✅ Complete: Relationship inference (optional, `--enable-layer4`)
-- **Layer 4+** 🔵 Future: Extended game/companion features
+- **Layer 4+** 🔵 Planned: Extended game/companion features
-- **Layer 5** 🔵 Future: Distribution and sharing
+- **Layer 5** 🔵 Planned: Knowledge sharing (information + personality)
 
 **Design Philosophy**:
 - **"Internal complexity, external simplicity"**: Simple API, complex internals

docs/ARCHITECTURE.md

@@ -12,8 +12,8 @@ aigptは、独立したレイヤーを積み重ねる設計です。各レイヤ
 
 ```
 ┌─────────────────────────────────────────┐
-│  Layer 5: Distribution & Sharing       │  🔵 Future
+│  Layer 5: Knowledge Sharing            │  🔵 Planned
-│  (Game streaming, public/private)      │
+│  (Information + Personality sharing)    │
 ├─────────────────────────────────────────┤
 │  Layer 4+: Extended Features          │  🔵 Planned
 │  (Advanced game/companion systems)      │
@@ -362,10 +362,16 @@ if user.extraversion < 0.5 {
 
 ### Design Philosophy
 
-**推測のみ、保存なし**:
+**推測ベース + 短期キャッシング**:
 - 毎回Layer 1-3.5から計算
-- キャッシュなし（シンプルさ優先）
+- 5分間の短期キャッシュで負荷軽減
-- 後でキャッシング追加可能
+- メモリ更新時にキャッシュ無効化
+
+**キャッシング戦略**:
+- SQLiteテーブル（`relationship_cache`）に保存
+- 個別エンティティ: `get_relationship(entity_id)`
+- 全体リスト: `list_relationships()`
+- メモリ作成/更新/削除時に自動クリア
 
 **独立性**:
 - Layer 1-3.5に依存
@@ -460,18 +466,104 @@ pub struct Companion {
 
 ---
 
-## Layer 5: Distribution (Future)
+## Layer 5: Knowledge Sharing (Planned)
 
-**Status**: 🔵 **Future Consideration**
+**Status**: 🔵 **Planned**
 
 ### Purpose
-ゲーム配信や共有機能。
+AIとのやり取りを「情報 + 個性」として共有する。SNSや配信のように、**有用な知見**と**作者の個性**を両立させたコンテンツプラットフォーム。
 
-### Ideas
+### Design Philosophy
-- Share memory rankings
+
-- Export as shareable format
+人々が求めるもの：
-- Public/private memory modes
+1. **情報価値**: 「このプロンプトでこんな結果が得られた」「この問題をAIでこう解決した」
-- Integration with streaming platforms
+2. **個性・共感**: 「この人はこういう人だ」という親近感、信頼
+
+SNSや配信と同じく、**情報のみは無機質**、**個性のみは空虚**。両方を組み合わせることで価値が生まれる。
+
+### Data Model
+
+```rust
+pub struct SharedInteraction {
+    pub id: String,
+
+    // 情報価値
+    pub problem: String,          // 何を解決しようとしたか
+    pub approach: String,         // AIとどうやり取りしたか
+    pub result: String,           // 何を得たか
+    pub usefulness_score: f32,    // 有用性 (0.0-1.0, priority_score由来)
+    pub tags: Vec<String>,        // 検索用タグ
+
+    // 個性
+    pub author_profile: ShareableProfile,  // 作者の本質
+    pub why_this_matters: String,          // なぜこの人がこれに取り組んだか
+
+    // メタデータ
+    pub views: u32,
+    pub useful_count: u32,        // 「役に立った」カウント
+    pub created_at: DateTime<Utc>,
+}
+
+pub struct ShareableProfile {
+    // ユーザーの本質（Layer 3.5から抽出）
+    pub personality_essence: Vec<TraitScore>,  // Top 3 traits
+    pub core_interests: Vec<String>,           // 5個
+    pub core_values: Vec<String>,              // 5個
+
+    // AIの解釈
+    pub ai_perspective: String,   // AIがこのユーザーをどう理解しているか
+    pub confidence: f32,          // データ品質 (0.0-1.0)
+
+    // 関係性スタイル（Layer 4から推測、匿名化）
+    pub relationship_style: String,  // 例: "深く狭い繋がりを好む"
+}
+```
+
+### Privacy Design
+
+**共有するもの:**
+- ✅ 本質（Layer 3.5の統合プロファイル）
+- ✅ パターン（関係性スタイル、思考パターン）
+- ✅ 有用な知見（問題解決のアプローチ）
+
+**共有しないもの:**
+- ❌ 生の会話内容（Layer 1-2）
+- ❌ 個人を特定できる情報
+- ❌ メモリID、タイムスタンプ等の生データ
+
+### Use Cases
+
+**1. AI時代のGitHub Gist**
+- 有用なプロンプトとその結果を共有
+- 作者の個性とアプローチが見える
+- 「この人の考え方が参考になる」
+
+**2. 知見のSNS**
+- 情報を発信しながら、個性も伝わる
+- フォロー、「役に立った」機能
+- 関心領域でフィルタリング
+
+**3. AIペルソナのショーケース**
+- 「AIは私をこう理解している」を共有
+- 性格分析の精度を比較
+- コミュニティでの自己表現
+
+### Implementation Ideas
+
+```rust
+// Layer 5のMCPツール
+- create_shareable_interaction() - 知見を共有形式で作成
+- get_shareable_profile()        - 共有可能なプロファイルを生成
+- export_interaction()           - JSON/Markdown形式でエクスポート
+- anonymize_data()               - プライバシー保護処理
+```
+
+### Future Platforms
+
+- Web UI: 知見を閲覧・検索・共有
+- API: 外部サービスと連携
+- RSS/Atom: フィード配信
+- Markdown Export: ブログ投稿用
 
 ---
 

src/core/error.rs

@@ -19,6 +19,9 @@ pub enum MemoryError {
 
     #[error("Configuration error: {0}")]
     Config(String),
+
+    #[error("Parse error: {0}")]
+    Parse(String),
 }
 
 pub type Result<T> = std::result::Result<T, MemoryError>;

src/core/mod.rs

@@ -9,5 +9,5 @@ pub use analysis::UserAnalysis;
 pub use error::{MemoryError, Result};
 pub use memory::Memory;
 pub use profile::{UserProfile, TraitScore};
-pub use relationship::{RelationshipInference, infer_all_relationships};
+pub use relationship::{RelationshipInference, infer_all_relationships, get_relationship};
 pub use store::MemoryStore;

src/core/relationship.rs

@@ -184,6 +184,11 @@ impl RelationshipInference {
 pub fn infer_all_relationships(
     store: &MemoryStore,
 ) -> Result<Vec<RelationshipInference>> {
+    // Check cache first
+    if let Some(cached) = store.get_cached_all_relationships()? {
+        return Ok(cached);
+    }
+
     // Get all memories
     let memories = store.list()?;
 
@@ -219,9 +224,41 @@ pub fn infer_all_relationships(
             .unwrap_or(std::cmp::Ordering::Equal)
     });
 
+    // Cache the result
+    store.save_all_relationships_cache(&relationships)?;
+
     Ok(relationships)
 }
 
+/// Get relationship inference for a specific entity (with caching)
+pub fn get_relationship(
+    store: &MemoryStore,
+    entity_id: &str,
+) -> Result<RelationshipInference> {
+    // Check cache first
+    if let Some(cached) = store.get_cached_relationship(entity_id)? {
+        return Ok(cached);
+    }
+
+    // Get all memories
+    let memories = store.list()?;
+
+    // Get user profile
+    let user_profile = store.get_profile()?;
+
+    // Infer relationship
+    let relationship = RelationshipInference::infer(
+        entity_id.to_string(),
+        &memories,
+        &user_profile,
+    );
+
+    // Cache it
+    store.save_relationship_cache(entity_id, &relationship)?;
+
+    Ok(relationship)
+}
+
 #[cfg(test)]
 mod tests {
     use super::*;

src/core/store.rs

@@ -102,6 +102,17 @@ impl MemoryStore {
             [],
         )?;
 
+        // Create relationship_cache table (Layer 4 - relationship inference cache)
+        // entity_id = "" for all_relationships cache
+        conn.execute(
+            "CREATE TABLE IF NOT EXISTS relationship_cache (
+                entity_id TEXT PRIMARY KEY,
+                data TEXT NOT NULL,
+                cached_at TEXT NOT NULL
+            )",
+            [],
+        )?;
+
         Ok(Self { conn })
     }
 
@@ -137,6 +148,10 @@ impl MemoryStore {
                 memory.updated_at.to_rfc3339(),
             ],
         )?;
+
+        // Clear relationship cache since memory data changed
+        self.clear_relationship_cache()?;
+
         Ok(())
     }
 
@@ -204,6 +219,9 @@ impl MemoryStore {
             return Err(MemoryError::NotFound(memory.id.clone()));
         }
 
+        // Clear relationship cache since memory data changed
+        self.clear_relationship_cache()?;
+
         Ok(())
     }
 
@@ -217,6 +235,9 @@ impl MemoryStore {
             return Err(MemoryError::NotFound(id.to_string()));
         }
 
+        // Clear relationship cache since memory data changed
+        self.clear_relationship_cache()?;
+
         Ok(())
     }
 
@@ -464,6 +485,123 @@ impl MemoryStore {
 
         Ok(profile)
     }
+
+    // ========== Layer 4: Relationship Cache Methods ==========
+
+    /// Cache duration in minutes
+    const RELATIONSHIP_CACHE_DURATION_MINUTES: i64 = 5;
+
+    /// Save relationship inference to cache
+    pub fn save_relationship_cache(
+        &self,
+        entity_id: &str,
+        relationship: &super::relationship::RelationshipInference,
+    ) -> Result<()> {
+        let data = serde_json::to_string(relationship)?;
+        let cached_at = Utc::now().to_rfc3339();
+
+        self.conn.execute(
+            "INSERT OR REPLACE INTO relationship_cache (entity_id, data, cached_at) VALUES (?1, ?2, ?3)",
+            params![entity_id, data, cached_at],
+        )?;
+
+        Ok(())
+    }
+
+    /// Get cached relationship inference
+    pub fn get_cached_relationship(
+        &self,
+        entity_id: &str,
+    ) -> Result<Option<super::relationship::RelationshipInference>> {
+        let mut stmt = self
+            .conn
+            .prepare("SELECT data, cached_at FROM relationship_cache WHERE entity_id = ?1")?;
+
+        let result = stmt.query_row([entity_id], |row| {
+            let data: String = row.get(0)?;
+            let cached_at: String = row.get(1)?;
+            Ok((data, cached_at))
+        });
+
+        match result {
+            Ok((data, cached_at_str)) => {
+                // Check if cache is still valid (within 5 minutes)
+                let cached_at = DateTime::parse_from_rfc3339(&cached_at_str)
+                    .map_err(|e| MemoryError::Parse(e.to_string()))?
+                    .with_timezone(&Utc);
+
+                let age_minutes = (Utc::now() - cached_at).num_seconds() / 60;
+
+                if age_minutes < Self::RELATIONSHIP_CACHE_DURATION_MINUTES {
+                    let relationship: super::relationship::RelationshipInference =
+                        serde_json::from_str(&data)?;
+                    Ok(Some(relationship))
+                } else {
+                    // Cache expired
+                    Ok(None)
+                }
+            }
+            Err(rusqlite::Error::QueryReturnedNoRows) => Ok(None),
+            Err(e) => Err(e.into()),
+        }
+    }
+
+    /// Save all relationships list to cache (use empty string as entity_id)
+    pub fn save_all_relationships_cache(
+        &self,
+        relationships: &[super::relationship::RelationshipInference],
+    ) -> Result<()> {
+        let data = serde_json::to_string(relationships)?;
+        let cached_at = Utc::now().to_rfc3339();
+
+        self.conn.execute(
+            "INSERT OR REPLACE INTO relationship_cache (entity_id, data, cached_at) VALUES ('', ?1, ?2)",
+            params![data, cached_at],
+        )?;
+
+        Ok(())
+    }
+
+    /// Get cached all relationships list
+    pub fn get_cached_all_relationships(
+        &self,
+    ) -> Result<Option<Vec<super::relationship::RelationshipInference>>> {
+        let mut stmt = self
+            .conn
+            .prepare("SELECT data, cached_at FROM relationship_cache WHERE entity_id = ''")?;
+
+        let result = stmt.query_row([], |row| {
+            let data: String = row.get(0)?;
+            let cached_at: String = row.get(1)?;
+            Ok((data, cached_at))
+        });
+
+        match result {
+            Ok((data, cached_at_str)) => {
+                let cached_at = DateTime::parse_from_rfc3339(&cached_at_str)
+                    .map_err(|e| MemoryError::Parse(e.to_string()))?
+                    .with_timezone(&Utc);
+
+                let age_minutes = (Utc::now() - cached_at).num_seconds() / 60;
+
+                if age_minutes < Self::RELATIONSHIP_CACHE_DURATION_MINUTES {
+                    let relationships: Vec<super::relationship::RelationshipInference> =
+                        serde_json::from_str(&data)?;
+                    Ok(Some(relationships))
+                } else {
+                    Ok(None)
+                }
+            }
+            Err(rusqlite::Error::QueryReturnedNoRows) => Ok(None),
+            Err(e) => Err(e.into()),
+        }
+    }
+
+    /// Clear all relationship caches (call when memories are modified)
+    pub fn clear_relationship_cache(&self) -> Result<()> {
+        self.conn.execute("DELETE FROM relationship_cache", [])?;
+        Ok(())
+    }
 }
 
 #[cfg(test)]

src/mcp/base.rs

@@ -2,7 +2,7 @@ use anyhow::Result;
 use serde_json::{json, Value};
 use std::io::{self, BufRead, Write};
 
-use crate::core::{Memory, MemoryStore, UserAnalysis, RelationshipInference, infer_all_relationships};
+use crate::core::{Memory, MemoryStore, UserAnalysis, infer_all_relationships, get_relationship};
 
 pub struct BaseMCPServer {
     store: MemoryStore,
@@ -581,31 +581,9 @@ impl BaseMCPServer {
             });
         }
 
-        // Get memories and user profile
+        // Get relationship (with caching)
-        let memories = match self.store.list() {
+        match get_relationship(&self.store, entity_id) {
-            Ok(m) => m,
+            Ok(relationship) => json!({
-            Err(e) => return json!({
-                "success": false,
-                "error": format!("Failed to get memories: {}", e)
-            }),
-        };
-
-        let user_profile = match self.store.get_profile() {
-            Ok(p) => p,
-            Err(e) => return json!({
-                "success": false,
-                "error": format!("Failed to get profile: {}", e)
-            }),
-        };
-
-        // Infer relationship
-        let relationship = RelationshipInference::infer(
-            entity_id.to_string(),
-            &memories,
-            &user_profile,
-        );
-
-        json!({
                 "success": true,
                 "relationship": {
                     "entity_id": relationship.entity_id,
@@ -617,7 +595,12 @@ impl BaseMCPServer {
                     "confidence": relationship.confidence,
                     "inferred_at": relationship.inferred_at
                 }
-        })
+            }),
+            Err(e) => json!({
+                "success": false,
+                "error": format!("Failed to get relationship: {}", e)
+            }),
+        }
     }
 
     fn tool_list_relationships(&self, arguments: &Value) -> Value {