feat: Add CLAUDE.md freshness tracking and update reminders

- Add SQLite table and CRUD methods for tracking update history
- Create freshness calculation service based on git file changes
- Add API endpoints for freshness data, marking updates, and history
- Display freshness badges in file tree (green/yellow/red indicators)
- Show freshness gauge and details in metadata panel
- Auto-mark files as updated after CLI sync
- Add English and Chinese i18n translations

Freshness algorithm: 100 - min((changedFilesCount / 20) * 100, 100)

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

ccw/src/core/claude-freshness.ts

@@ -0,0 +1,319 @@
+/**
+ * CLAUDE.md Freshness Calculator
+ * Calculates freshness scores based on git changes since last update
+ */
+
+import { execSync } from 'child_process';
+import { existsSync, statSync, readdirSync } from 'fs';
+import { dirname, extname, relative, join } from 'path';
+import { getCoreMemoryStore, ClaudeUpdateRecord } from './core-memory-store.js';
+
+// Source file extensions to track (from detect-changed-modules.ts)
+const SOURCE_EXTENSIONS = [
+  '.md', '.js', '.ts', '.jsx', '.tsx',
+  '.py', '.go', '.rs', '.java', '.cpp', '.c', '.h',
+  '.sh', '.ps1', '.json', '.yaml', '.yml'
+];
+
+// Directories to exclude
+const EXCLUDE_DIRS = [
+  '.git', '__pycache__', 'node_modules', '.venv', 'venv', 'env',
+  'dist', 'build', '.cache', '.pytest_cache', '.mypy_cache',
+  'coverage', '.nyc_output', 'logs', 'tmp', 'temp', '.ccw', '.workflow'
+];
+
+export interface FreshnessResult {
+  path: string;
+  level: 'user' | 'project' | 'module';
+  relativePath: string;
+  parentDirectory?: string;
+  lastUpdated: string | null;
+  lastModified: string;
+  changedFilesCount: number;
+  freshness: number;
+  updateSource?: string;
+  needsUpdate: boolean;
+  changedFiles?: string[];
+}
+
+export interface FreshnessSummary {
+  totalFiles: number;
+  staleCount: number;
+  averageFreshness: number;
+  lastScanAt: string;
+}
+
+export interface FreshnessResponse {
+  files: FreshnessResult[];
+  summary: FreshnessSummary;
+}
+
+/**
+ * Check if git is available and we're in a repo
+ */
+function isGitRepo(basePath: string): boolean {
+  try {
+    execSync('git rev-parse --git-dir', { cwd: basePath, stdio: 'pipe' });
+    return true;
+  } catch (e) {
+    return false;
+  }
+}
+
+/**
+ * Get current git commit hash
+ */
+export function getCurrentGitCommit(basePath: string): string | null {
+  try {
+    const output = execSync('git rev-parse HEAD', {
+      cwd: basePath,
+      encoding: 'utf8',
+      stdio: ['pipe', 'pipe', 'pipe']
+    }).trim();
+    return output || null;
+  } catch (e) {
+    return null;
+  }
+}
+
+/**
+ * Get files changed since a specific date within a directory
+ */
+function getChangedFilesSince(basePath: string, modulePath: string, sinceDate: string): string[] {
+  try {
+    // Format date for git
+    const date = new Date(sinceDate);
+    const formattedDate = date.toISOString().split('T')[0];
+
+    // Get files changed since the date
+    const output = execSync(
+      `git log --name-only --since="${formattedDate}" --pretty=format: -- "${modulePath}"`,
+      {
+        cwd: basePath,
+        encoding: 'utf8',
+        stdio: ['pipe', 'pipe', 'pipe']
+      }
+    ).trim();
+
+    if (!output) return [];
+
+    // Get unique files and filter by source extensions
+    const files = [...new Set(output.split('\n').filter(f => f.trim()))];
+    return files.filter(f => {
+      const ext = extname(f).toLowerCase();
+      return SOURCE_EXTENSIONS.includes(ext);
+    });
+  } catch (e) {
+    // Fallback to mtime-based detection
+    return findFilesModifiedSince(modulePath, sinceDate);
+  }
+}
+
+/**
+ * Fallback: Find files modified since a date using mtime
+ */
+function findFilesModifiedSince(dirPath: string, sinceDate: string): string[] {
+  const results: string[] = [];
+  const cutoffTime = new Date(sinceDate).getTime();
+
+  function scan(currentPath: string): void {
+    try {
+      const entries = readdirSync(currentPath, { withFileTypes: true });
+
+      for (const entry of entries) {
+        if (entry.isDirectory()) {
+          if (EXCLUDE_DIRS.includes(entry.name)) continue;
+          scan(join(currentPath, entry.name));
+        } else if (entry.isFile()) {
+          const ext = extname(entry.name).toLowerCase();
+          if (!SOURCE_EXTENSIONS.includes(ext)) continue;
+
+          const fullPath = join(currentPath, entry.name);
+          try {
+            const stat = statSync(fullPath);
+            if (stat.mtimeMs > cutoffTime) {
+              results.push(relative(dirPath, fullPath));
+            }
+          } catch (e) {
+            // Skip files we can't stat
+          }
+        }
+      }
+    } catch (e) {
+      // Ignore permission errors
+    }
+  }
+
+  if (existsSync(dirPath)) {
+    scan(dirPath);
+  }
+  return results;
+}
+
+/**
+ * Calculate freshness for a single CLAUDE.md file
+ */
+export function calculateFreshness(
+  filePath: string,
+  fileLevel: 'user' | 'project' | 'module',
+  lastUpdateTime: string | null,
+  lastModified: string,
+  projectPath: string,
+  threshold: number = 20
+): FreshnessResult {
+  // Use lastUpdateTime from history, or fall back to file mtime
+  const effectiveUpdateTime = lastUpdateTime || lastModified;
+
+  // Calculate module path for change detection
+  let modulePath: string | null = null;
+  let changedFiles: string[] = [];
+
+  if (fileLevel === 'module') {
+    // For module-level files, scan the parent directory
+    modulePath = dirname(filePath);
+  } else if (fileLevel === 'project') {
+    // For project-level files, scan the project root
+    modulePath = projectPath;
+  }
+
+  // Only calculate changes for module/project level in git repos
+  if (modulePath && isGitRepo(projectPath)) {
+    changedFiles = getChangedFilesSince(projectPath, modulePath, effectiveUpdateTime);
+    // Exclude the CLAUDE.md file itself
+    changedFiles = changedFiles.filter(f => !f.endsWith('CLAUDE.md'));
+  }
+
+  // Calculate freshness percentage
+  const changedCount = changedFiles.length;
+  const freshness = Math.max(0, 100 - Math.floor((changedCount / threshold) * 100));
+
+  // Determine parent directory for display
+  const parentDirectory = fileLevel === 'module'
+    ? filePath.split(/[\\/]/).slice(-2, -1)[0]
+    : undefined;
+
+  return {
+    path: filePath,
+    level: fileLevel,
+    relativePath: relative(projectPath, filePath).replace(/\\/g, '/'),
+    parentDirectory,
+    lastUpdated: lastUpdateTime,
+    lastModified,
+    changedFilesCount: changedCount,
+    freshness,
+    needsUpdate: freshness < 50,
+    changedFiles: changedFiles.slice(0, 20) // Limit to first 20 for detail view
+  };
+}
+
+/**
+ * Calculate freshness for all CLAUDE.md files in a project
+ */
+export function calculateAllFreshness(
+  claudeFiles: Array<{
+    path: string;
+    level: 'user' | 'project' | 'module';
+    lastModified: string;
+  }>,
+  projectPath: string,
+  threshold: number = 20
+): FreshnessResponse {
+  // Get update records from store
+  const store = getCoreMemoryStore(projectPath);
+  const updateRecords = store.getAllClaudeUpdateRecords();
+
+  // Create a map for quick lookup
+  const updateMap = new Map<string, ClaudeUpdateRecord>();
+  for (const record of updateRecords) {
+    updateMap.set(record.file_path, record);
+  }
+
+  const results: FreshnessResult[] = [];
+
+  for (const file of claudeFiles) {
+    const updateRecord = updateMap.get(file.path);
+
+    const result = calculateFreshness(
+      file.path,
+      file.level,
+      updateRecord?.updated_at || null,
+      file.lastModified,
+      projectPath,
+      threshold
+    );
+
+    if (updateRecord) {
+      result.updateSource = updateRecord.update_source;
+    }
+
+    results.push(result);
+  }
+
+  // Calculate summary
+  const staleCount = results.filter(r => r.needsUpdate).length;
+  const totalFreshness = results.reduce((sum, r) => sum + r.freshness, 0);
+  const averageFreshness = results.length > 0 ? Math.round(totalFreshness / results.length) : 100;
+
+  return {
+    files: results,
+    summary: {
+      totalFiles: results.length,
+      staleCount,
+      averageFreshness,
+      lastScanAt: new Date().toISOString()
+    }
+  };
+}
+
+/**
+ * Mark a CLAUDE.md file as updated
+ */
+export function markFileAsUpdated(
+  filePath: string,
+  fileLevel: 'user' | 'project' | 'module',
+  updateSource: 'manual' | 'cli_sync' | 'dashboard' | 'api',
+  projectPath: string,
+  metadata?: object
+): ClaudeUpdateRecord {
+  const store = getCoreMemoryStore(projectPath);
+  const now = new Date().toISOString();
+
+  // Get current git commit
+  const gitCommit = getCurrentGitCommit(projectPath);
+
+  // Calculate changed files count before this update
+  const lastUpdate = store.getLastClaudeUpdate(filePath);
+  let filesChangedCount = 0;
+
+  if (lastUpdate && isGitRepo(projectPath)) {
+    const modulePath = fileLevel === 'module' ? dirname(filePath) : projectPath;
+    const changedFiles = getChangedFilesSince(projectPath, modulePath, lastUpdate.updated_at);
+    filesChangedCount = changedFiles.filter(f => !f.endsWith('CLAUDE.md')).length;
+  }
+
+  // Insert update record
+  const record = store.insertClaudeUpdateRecord({
+    file_path: filePath,
+    file_level: fileLevel,
+    module_path: fileLevel === 'module' ? dirname(filePath) : undefined,
+    updated_at: now,
+    update_source: updateSource,
+    git_commit_hash: gitCommit || undefined,
+    files_changed_before_update: filesChangedCount,
+    metadata: metadata ? JSON.stringify(metadata) : undefined
+  });
+
+  return record;
+}
+
+/**
+ * Get update history for a file
+ */
+export function getUpdateHistory(
+  filePath: string,
+  projectPath: string,
+  limit: number = 50
+): ClaudeUpdateRecord[] {
+  const store = getCoreMemoryStore(projectPath);
+  return store.getClaudeUpdateHistory(filePath, limit);
+}

ccw/src/core/core-memory-store.ts

@@ -71,6 +71,18 @@ export interface MemoryChunk {
   created_at: string;
 }
 
+export interface ClaudeUpdateRecord {
+  id?: number;
+  file_path: string;
+  file_level: 'user' | 'project' | 'module';
+  module_path?: string;
+  updated_at: string;
+  update_source: 'manual' | 'cli_sync' | 'dashboard' | 'api';
+  git_commit_hash?: string;
+  files_changed_before_update: number;
+  metadata?: string;
+}
+
 /**
  * Core Memory Store using SQLite
  */
@@ -176,6 +188,20 @@ export class CoreMemoryStore {
         UNIQUE(source_id, chunk_index)
       );
 
+      -- CLAUDE.md update history table
+      CREATE TABLE IF NOT EXISTS claude_update_history (
+        id INTEGER PRIMARY KEY AUTOINCREMENT,
+        file_path TEXT NOT NULL,
+        file_level TEXT NOT NULL CHECK(file_level IN ('user', 'project', 'module')),
+        module_path TEXT,
+        updated_at TEXT NOT NULL,
+        update_source TEXT NOT NULL CHECK(update_source IN ('manual', 'cli_sync', 'dashboard', 'api')),
+        git_commit_hash TEXT,
+        files_changed_before_update INTEGER DEFAULT 0,
+        metadata TEXT,
+        UNIQUE(file_path, updated_at)
+      );
+
       -- Indexes for efficient queries
       CREATE INDEX IF NOT EXISTS idx_memories_created ON memories(created_at DESC);
       CREATE INDEX IF NOT EXISTS idx_memories_updated ON memories(updated_at DESC);
@@ -186,6 +212,9 @@ export class CoreMemoryStore {
       CREATE INDEX IF NOT EXISTS idx_session_metadata_type ON session_metadata_cache(session_type);
       CREATE INDEX IF NOT EXISTS idx_memory_chunks_source ON memory_chunks(source_id, source_type);
       CREATE INDEX IF NOT EXISTS idx_memory_chunks_embedded ON memory_chunks(embedding IS NOT NULL);
+      CREATE INDEX IF NOT EXISTS idx_claude_history_path ON claude_update_history(file_path);
+      CREATE INDEX IF NOT EXISTS idx_claude_history_updated ON claude_update_history(updated_at DESC);
+      CREATE INDEX IF NOT EXISTS idx_claude_history_module ON claude_update_history(module_path);
     `);
   }
 
@@ -1078,6 +1107,128 @@ ${memory.content}
     stmt.run(sourceId);
   }
 
+  // ============================================================================
+  // CLAUDE.md Update History CRUD Operations
+  // ============================================================================
+
+  /**
+   * Insert a CLAUDE.md update record
+   */
+  insertClaudeUpdateRecord(record: Omit<ClaudeUpdateRecord, 'id'>): ClaudeUpdateRecord {
+    const stmt = this.db.prepare(`
+      INSERT INTO claude_update_history
+      (file_path, file_level, module_path, updated_at, update_source, git_commit_hash, files_changed_before_update, metadata)
+      VALUES (?, ?, ?, ?, ?, ?, ?, ?)
+    `);
+
+    const result = stmt.run(
+      record.file_path,
+      record.file_level,
+      record.module_path || null,
+      record.updated_at,
+      record.update_source,
+      record.git_commit_hash || null,
+      record.files_changed_before_update,
+      record.metadata || null
+    );
+
+    return {
+      id: result.lastInsertRowid as number,
+      ...record
+    };
+  }
+
+  /**
+   * Get the last update record for a file
+   */
+  getLastClaudeUpdate(filePath: string): ClaudeUpdateRecord | null {
+    const stmt = this.db.prepare(`
+      SELECT * FROM claude_update_history
+      WHERE file_path = ?
+      ORDER BY updated_at DESC
+      LIMIT 1
+    `);
+
+    const row = stmt.get(filePath) as any;
+    if (!row) return null;
+
+    return {
+      id: row.id,
+      file_path: row.file_path,
+      file_level: row.file_level,
+      module_path: row.module_path,
+      updated_at: row.updated_at,
+      update_source: row.update_source,
+      git_commit_hash: row.git_commit_hash,
+      files_changed_before_update: row.files_changed_before_update,
+      metadata: row.metadata
+    };
+  }
+
+  /**
+   * Get update history for a file
+   */
+  getClaudeUpdateHistory(filePath: string, limit: number = 50): ClaudeUpdateRecord[] {
+    const stmt = this.db.prepare(`
+      SELECT * FROM claude_update_history
+      WHERE file_path = ?
+      ORDER BY updated_at DESC
+      LIMIT ?
+    `);
+
+    const rows = stmt.all(filePath, limit) as any[];
+    return rows.map(row => ({
+      id: row.id,
+      file_path: row.file_path,
+      file_level: row.file_level,
+      module_path: row.module_path,
+      updated_at: row.updated_at,
+      update_source: row.update_source,
+      git_commit_hash: row.git_commit_hash,
+      files_changed_before_update: row.files_changed_before_update,
+      metadata: row.metadata
+    }));
+  }
+
+  /**
+   * Get all CLAUDE.md update records for freshness calculation
+   */
+  getAllClaudeUpdateRecords(): ClaudeUpdateRecord[] {
+    const stmt = this.db.prepare(`
+      SELECT * FROM claude_update_history
+      WHERE id IN (
+        SELECT MAX(id) FROM claude_update_history
+        GROUP BY file_path
+      )
+      ORDER BY updated_at DESC
+    `);
+
+    const rows = stmt.all() as any[];
+    return rows.map(row => ({
+      id: row.id,
+      file_path: row.file_path,
+      file_level: row.file_level,
+      module_path: row.module_path,
+      updated_at: row.updated_at,
+      update_source: row.update_source,
+      git_commit_hash: row.git_commit_hash,
+      files_changed_before_update: row.files_changed_before_update,
+      metadata: row.metadata
+    }));
+  }
+
+  /**
+   * Delete update records for a file
+   */
+  deleteClaudeUpdateRecords(filePath: string): number {
+    const stmt = this.db.prepare(`
+      DELETE FROM claude_update_history
+      WHERE file_path = ?
+    `);
+    const result = stmt.run(filePath);
+    return result.changes;
+  }
+
   /**
    * Close database connection
    */

ccw/src/core/routes/claude-routes.ts

@@ -651,6 +651,14 @@ export async function handleClaudeRoutes(ctx: RouteContext): Promise<boolean> {
         // Write updated content
         writeFileSync(filePath, finalContent, 'utf8');
 
+        // Mark file as updated for freshness tracking
+        try {
+          const { markFileAsUpdated } = await import('../claude-freshness.js');
+          markFileAsUpdated(filePath, level, 'cli_sync', initialPath, { tool, mode });
+        } catch (e) {
+          console.error('Failed to mark file as updated:', e);
+        }
+
         // Broadcast WebSocket event
         broadcastToClients({
           type: 'CLAUDE_FILE_SYNCED',
@@ -1026,5 +1034,150 @@ export async function handleClaudeRoutes(ctx: RouteContext): Promise<boolean> {
     return true;
   }
 
+  // API: Get freshness scores for all CLAUDE.md files
+  if (pathname === '/api/memory/claude/freshness' && req.method === 'GET') {
+    try {
+      const { calculateAllFreshness } = await import('../claude-freshness.js');
+
+      const projectPathParam = url.searchParams.get('path') || initialPath;
+      const threshold = parseInt(url.searchParams.get('threshold') || '20', 10);
+
+      // Get all CLAUDE.md files
+      const filesData = scanAllClaudeFiles(projectPathParam);
+
+      // Prepare file list for freshness calculation
+      const claudeFiles: Array<{
+        path: string;
+        level: 'user' | 'project' | 'module';
+        lastModified: string;
+      }> = [];
+
+      if (filesData.user.main) {
+        claudeFiles.push({
+          path: filesData.user.main.path,
+          level: 'user',
+          lastModified: filesData.user.main.lastModified
+        });
+      }
+
+      if (filesData.project.main) {
+        claudeFiles.push({
+          path: filesData.project.main.path,
+          level: 'project',
+          lastModified: filesData.project.main.lastModified
+        });
+      }
+
+      for (const module of filesData.modules) {
+        claudeFiles.push({
+          path: module.path,
+          level: 'module',
+          lastModified: module.lastModified
+        });
+      }
+
+      // Calculate freshness
+      const freshnessData = calculateAllFreshness(claudeFiles, projectPathParam, threshold);
+
+      res.writeHead(200, { 'Content-Type': 'application/json' });
+      res.end(JSON.stringify(freshnessData));
+      return true;
+    } catch (error) {
+      console.error('Error calculating freshness:', error);
+      res.writeHead(500, { 'Content-Type': 'application/json' });
+      res.end(JSON.stringify({ error: (error as Error).message }));
+      return true;
+    }
+  }
+
+  // API: Mark a CLAUDE.md file as updated
+  if (pathname === '/api/memory/claude/mark-updated' && req.method === 'POST') {
+    handlePostRequest(req, res, async (body: any) => {
+      const { path: filePath, source, metadata } = body;
+
+      if (!filePath) {
+        return { error: 'Missing path parameter', status: 400 };
+      }
+
+      if (!source || !['manual', 'cli_sync', 'dashboard', 'api'].includes(source)) {
+        return { error: 'Invalid or missing source parameter', status: 400 };
+      }
+
+      try {
+        const { markFileAsUpdated } = await import('../claude-freshness.js');
+
+        // Determine file level
+        let level: 'user' | 'project' | 'module' = 'module';
+        if (filePath.includes(join(homedir(), '.claude'))) {
+          level = 'user';
+        } else if (filePath.includes('.claude')) {
+          level = 'project';
+        }
+
+        const record = markFileAsUpdated(filePath, level, source, initialPath, metadata);
+
+        // Broadcast update
+        broadcastToClients({
+          type: 'CLAUDE_FRESHNESS_UPDATED',
+          data: {
+            path: filePath,
+            level,
+            updatedAt: record.updated_at,
+            source
+          }
+        });
+
+        return {
+          success: true,
+          record: {
+            id: record.id,
+            updated_at: record.updated_at,
+            filesChangedBeforeUpdate: record.files_changed_before_update
+          }
+        };
+      } catch (error) {
+        console.error('Error marking file as updated:', error);
+        return { error: (error as Error).message, status: 500 };
+      }
+    });
+    return true;
+  }
+
+  // API: Get update history for a CLAUDE.md file
+  if (pathname === '/api/memory/claude/history' && req.method === 'GET') {
+    const filePath = url.searchParams.get('path');
+    const limit = parseInt(url.searchParams.get('limit') || '50', 10);
+
+    if (!filePath) {
+      res.writeHead(400, { 'Content-Type': 'application/json' });
+      res.end(JSON.stringify({ error: 'Missing path parameter' }));
+      return true;
+    }
+
+    try {
+      const { getUpdateHistory } = await import('../claude-freshness.js');
+
+      const records = getUpdateHistory(filePath, initialPath, limit);
+
+      res.writeHead(200, { 'Content-Type': 'application/json' });
+      res.end(JSON.stringify({
+        records: records.map(r => ({
+          id: r.id,
+          updated_at: r.updated_at,
+          update_source: r.update_source,
+          git_commit_hash: r.git_commit_hash,
+          files_changed_before_update: r.files_changed_before_update,
+          metadata: r.metadata ? JSON.parse(r.metadata) : undefined
+        }))
+      }));
+      return true;
+    } catch (error) {
+      console.error('Error getting update history:', error);
+      res.writeHead(500, { 'Content-Type': 'application/json' });
+      res.end(JSON.stringify({ error: (error as Error).message }));
+      return true;
+    }
+  }
+
   return false;
 }

ccw/src/mcp-server/index.ts

@@ -14,7 +14,7 @@ import { getAllToolSchemas, executeTool, executeToolWithProgress } from '../tool
 import type { ToolSchema, ToolResult } from '../types/tool.js';
 
 const SERVER_NAME = 'ccw-tools';
-const SERVER_VERSION = '6.1.4';
+const SERVER_VERSION = '6.2.0';
 
 // Default enabled tools (core set)
 const DEFAULT_TOOLS: string[] = ['write_file', 'edit_file', 'read_file', 'smart_search', 'core_memory'];

ccw/src/templates/dashboard-css/26-claude-manager.css

@@ -734,6 +734,118 @@
   border-color: hsl(0, 72%, 45%);
 }
 
+/* ========================================
+ * Freshness Tracking Styles
+ * ======================================== */
+
+/* Freshness badges in file tree */
+.freshness-badge {
+  font-size: 0.65rem;
+  padding: 1px 4px;
+  border-radius: 3px;
+  margin-left: auto;
+  font-weight: 500;
+  flex-shrink: 0;
+}
+
+.freshness-badge.good {
+  background: hsl(142, 71%, 45%, 0.15);
+  color: hsl(142, 71%, 45%);
+}
+
+.freshness-badge.warn {
+  background: hsl(38, 92%, 50%, 0.15);
+  color: hsl(38, 92%, 50%);
+}
+
+.freshness-badge.stale {
+  background: hsl(0, 72%, 51%, 0.15);
+  color: hsl(0, 72%, 51%);
+}
+
+/* File tree item freshness states */
+.file-tree-item.freshness-stale {
+  border-left: 2px solid hsl(0, 72%, 51%);
+}
+
+.file-tree-item.freshness-warn {
+  border-left: 2px solid hsl(38, 92%, 50%);
+}
+
+.file-tree-item.freshness-good {
+  border-left: 2px solid hsl(142, 71%, 45%);
+}
+
+/* Freshness section in metadata panel */
+.freshness-section {
+  padding: 1rem;
+  border: 1px solid hsl(var(--border));
+  border-radius: 0.5rem;
+  background: hsl(var(--card));
+}
+
+.freshness-section h4 {
+  display: flex;
+  align-items: center;
+  gap: 0.5rem;
+}
+
+/* Freshness gauge/progress bar */
+.freshness-gauge {
+  position: relative;
+  height: 8px;
+  background: hsl(var(--muted));
+  border-radius: 4px;
+  overflow: hidden;
+  margin: 0.75rem 0;
+}
+
+.freshness-bar {
+  height: 100%;
+  border-radius: 4px;
+  transition: width 0.3s ease;
+}
+
+.freshness-bar.good {
+  background: linear-gradient(90deg, hsl(142, 71%, 45%), hsl(142, 71%, 55%));
+}
+
+.freshness-bar.warn {
+  background: linear-gradient(90deg, hsl(38, 92%, 50%), hsl(45, 92%, 50%));
+}
+
+.freshness-bar.stale {
+  background: linear-gradient(90deg, hsl(0, 72%, 51%), hsl(15, 72%, 51%));
+}
+
+/* Freshness value display */
+.freshness-value-display {
+  text-align: center;
+  font-size: 1.5rem;
+  font-weight: 700;
+  color: hsl(var(--foreground));
+  margin-bottom: 0.75rem;
+}
+
+/* Update reminder warning */
+.update-reminder {
+  display: flex;
+  align-items: center;
+  gap: 0.5rem;
+  padding: 0.75rem;
+  background: hsl(38, 92%, 50%, 0.1);
+  border: 1px solid hsl(38, 92%, 50%, 0.3);
+  border-radius: 0.375rem;
+  color: hsl(38, 92%, 40%);
+  font-size: 0.8rem;
+  margin: 0.75rem 0;
+}
+
+.update-reminder i {
+  flex-shrink: 0;
+  color: hsl(38, 92%, 50%);
+}
+
 /* ========================================
  * Responsive Design
  * ======================================== */

ccw/src/templates/dashboard-js/i18n.js

@@ -1087,6 +1087,15 @@ const i18n = {
     'claudeManager.unsavedChanges': 'You have unsaved changes. Discard them?',
     'claudeManager.saved': 'File saved successfully',
     'claudeManager.saveError': 'Failed to save file',
+    'claudeManager.freshness': 'Freshness',
+    'claudeManager.lastContentUpdate': 'Last Content Update',
+    'claudeManager.changedFiles': 'Changed Files',
+    'claudeManager.filesSinceUpdate': 'files since update',
+    'claudeManager.updateReminder': 'This file may need updating',
+    'claudeManager.markAsUpdated': 'Mark as Updated',
+    'claudeManager.markedAsUpdated': 'Marked as updated successfully',
+    'claudeManager.markUpdateError': 'Failed to mark as updated',
+    'claudeManager.never': 'Never tracked',
 
     // Graph Explorer
     'nav.graphExplorer': 'Graph',
@@ -2377,6 +2386,15 @@ const i18n = {
     'claudeManager.unsavedChanges': '您有未保存的更改。是否放弃？',
     'claudeManager.saved': '文件保存成功',
     'claudeManager.saveError': '文件保存失败',
+    'claudeManager.freshness': '新鲜度',
+    'claudeManager.lastContentUpdate': '上次内容更新',
+    'claudeManager.changedFiles': '变动文件',
+    'claudeManager.filesSinceUpdate': '个文件自上次更新后变动',
+    'claudeManager.updateReminder': '此文件可能需要更新',
+    'claudeManager.markAsUpdated': '标记为已更新',
+    'claudeManager.markedAsUpdated': '已成功标记为已更新',
+    'claudeManager.markUpdateError': '标记更新失败',
+    'claudeManager.never': '从未追踪',
 
     // Graph Explorer
     'nav.graphExplorer': '图谱',

ccw/src/templates/dashboard-js/views/claude-manager.js

@@ -17,6 +17,8 @@ var fileTreeExpanded = {
   modules: {}
 };
 var searchQuery = '';
+var freshnessData = {}; // { [filePath]: FreshnessResult }
+var freshnessSummary = null;
 
 // ========== Main Render Function ==========
 async function renderClaudeManager() {
@@ -37,6 +39,7 @@ async function renderClaudeManager() {
 
   // Load data
   await loadClaudeFiles();
+  await loadFreshnessData();
 
   // Render layout
   container.innerHTML = '<div class="claude-manager-view">' +
@@ -85,10 +88,60 @@ async function loadClaudeFiles() {
 
 async function refreshClaudeFiles() {
   await loadClaudeFiles();
+  await loadFreshnessData();
   await renderClaudeManager();
   addGlobalNotification('success', t('claudeManager.refreshed'), null, 'CLAUDE.md');
 }
 
+// ========== Freshness Data Loading ==========
+async function loadFreshnessData() {
+  try {
+    var res = await fetch('/api/memory/claude/freshness?path=' + encodeURIComponent(projectPath || ''));
+    if (!res.ok) throw new Error('Failed to load freshness data');
+    var data = await res.json();
+
+    // Build lookup map
+    freshnessData = {};
+    if (data.files) {
+      data.files.forEach(function(f) {
+        freshnessData[f.path] = f;
+      });
+    }
+    freshnessSummary = data.summary || null;
+  } catch (error) {
+    console.error('Error loading freshness data:', error);
+    freshnessData = {};
+    freshnessSummary = null;
+  }
+}
+
+async function markFileAsUpdated() {
+  if (!selectedFile) return;
+
+  try {
+    var res = await fetch('/api/memory/claude/mark-updated', {
+      method: 'POST',
+      headers: { 'Content-Type': 'application/json' },
+      body: JSON.stringify({
+        path: selectedFile.path,
+        source: 'dashboard'
+      })
+    });
+
+    if (!res.ok) throw new Error('Failed to mark file as updated');
+
+    addGlobalNotification('success', t('claudeManager.markedAsUpdated') || 'Marked as updated', null, 'CLAUDE.md');
+
+    // Reload freshness data
+    await loadFreshnessData();
+    renderFileTree();
+    renderFileMetadata();
+  } catch (error) {
+    console.error('Error marking file as updated:', error);
+    addGlobalNotification('error', t('claudeManager.markUpdateError') || 'Failed to mark as updated', null, 'CLAUDE.md');
+  }
+}
+
 // ========== File Tree Rendering ==========
 function renderFileTree() {
   var container = document.getElementById('claude-file-tree');
@@ -183,11 +236,30 @@ function renderFileTreeItem(file, indentLevel) {
   var indentPx = indentLevel * 1.5;
   var safeId = file.id.replace(/'/g, "&apos;");
 
-  return '<div class="file-tree-item' + (isSelected ? ' selected' : '') + '" ' +
+  // Get freshness data for this file
+  var fd = freshnessData[file.path];
+  var freshnessClass = '';
+  var freshnessBadge = '';
+
+  if (fd) {
+    if (fd.freshness >= 75) {
+      freshnessClass = ' freshness-good';
+      freshnessBadge = '<span class="freshness-badge good">' + fd.freshness + '%</span>';
+    } else if (fd.freshness >= 50) {
+      freshnessClass = ' freshness-warn';
+      freshnessBadge = '<span class="freshness-badge warn">' + fd.freshness + '%</span>';
+    } else {
+      freshnessClass = ' freshness-stale';
+      freshnessBadge = '<span class="freshness-badge stale">' + fd.freshness + '%</span>';
+    }
+  }
+
+  return '<div class="file-tree-item' + freshnessClass + (isSelected ? ' selected' : '') + '" ' +
     'onclick="selectClaudeFile(\'' + safeId + '\')" ' +
     'style="padding-left: ' + indentPx + 'rem;">' +
     '<i data-lucide="file-text" class="w-4 h-4"></i>' +
     '<span class="file-name">' + escapeHtml(file.name) + '</span>' +
+    freshnessBadge +
     (file.parentDirectory ? '<span class="file-path-hint">' + escapeHtml(file.parentDirectory) + '</span>' : '') +
     '</div>';
 }
@@ -446,6 +518,38 @@ function renderFileMetadata() {
       '</div>';
   }
 
+  // Freshness section
+  var fd = freshnessData[selectedFile.path];
+  if (fd) {
+    var freshnessBarClass = fd.freshness >= 75 ? 'good' : fd.freshness >= 50 ? 'warn' : 'stale';
+    html += '<div class="metadata-section freshness-section">' +
+      '<h4><i data-lucide="activity" class="w-4 h-4"></i> ' + (t('claudeManager.freshness') || 'Freshness') + '</h4>' +
+      '<div class="freshness-gauge">' +
+      '<div class="freshness-bar ' + freshnessBarClass + '" style="width: ' + fd.freshness + '%"></div>' +
+      '</div>' +
+      '<div class="freshness-value-display">' + fd.freshness + '%</div>' +
+      '<div class="metadata-item">' +
+      '<span class="label">' + (t('claudeManager.lastContentUpdate') || 'Last Content Update') + '</span>' +
+      '<span class="value">' + (fd.lastUpdated ? formatDate(fd.lastUpdated) : (t('claudeManager.never') || 'Never tracked')) + '</span>' +
+      '</div>' +
+      '<div class="metadata-item">' +
+      '<span class="label">' + (t('claudeManager.changedFiles') || 'Changed Files') + '</span>' +
+      '<span class="value">' + fd.changedFilesCount + ' ' + (t('claudeManager.filesSinceUpdate') || 'files since update') + '</span>' +
+      '</div>';
+
+    if (fd.needsUpdate) {
+      html += '<div class="update-reminder">' +
+        '<i data-lucide="alert-triangle" class="w-4 h-4"></i>' +
+        '<span>' + (t('claudeManager.updateReminder') || 'This file may need updating') + '</span>' +
+        '</div>';
+    }
+
+    html += '<button class="btn btn-sm btn-secondary full-width" onclick="markFileAsUpdated()">' +
+      '<i data-lucide="check-circle" class="w-4 h-4"></i> ' + (t('claudeManager.markAsUpdated') || 'Mark as Updated') +
+      '</button>' +
+      '</div>';
+  }
+
   html += '<div class="metadata-section">' +
     '<h4>' + t('claudeManager.actions') + '</h4>';
 
@@ -536,10 +640,12 @@ async function syncFileWithCLI() {
     var result = await response.json();
 
     if (result.success) {
-      // Reload file content
+      // Reload file content and freshness data
       var fileData = await loadFileContent(selectedFile.path);
       if (fileData) {
         selectedFile = fileData;
+        await loadFreshnessData();
+        renderFileTree();
         renderFileViewer();
         renderFileMetadata();
       }

ccw/src/tools/codex-lens.ts

@@ -51,6 +51,7 @@ const ParamsSchema = z.object({
   format: z.enum(['json', 'text', 'pretty']).default('json'),
   languages: z.array(z.string()).optional(),
   limit: z.number().default(20),
+  enrich: z.boolean().default(false),
   // Additional fields for internal functions
   file: z.string().optional(),
   key: z.string().optional(),
@@ -516,7 +517,7 @@ async function initIndex(params: Params): Promise<ExecuteResult> {
  * @returns Execution result
  */
 async function searchCode(params: Params): Promise<ExecuteResult> {
-  const { query, path = '.', limit = 20, mode = 'auto' } = params;
+  const { query, path = '.', limit = 20, mode = 'auto', enrich = false } = params;
 
   if (!query) {
     return { success: false, error: 'Query is required for search action' };
@@ -537,6 +538,10 @@ async function searchCode(params: Params): Promise<ExecuteResult> {
   const cliMode = modeMap[mode] || 'auto';
   const args = ['search', query, '--limit', limit.toString(), '--mode', cliMode, '--json'];
 
+  if (enrich) {
+    args.push('--enrich');
+  }
+
   const result = await executeCodexLens(args, { cwd: path });
 
   if (result.success && result.output) {
@@ -557,7 +562,7 @@ async function searchCode(params: Params): Promise<ExecuteResult> {
  * @returns Execution result
  */
 async function searchFiles(params: Params): Promise<ExecuteResult> {
-  const { query, path = '.', limit = 20, mode = 'auto' } = params;
+  const { query, path = '.', limit = 20, mode = 'auto', enrich = false } = params;
 
   if (!query) {
     return { success: false, error: 'Query is required for search_files action' };
@@ -578,6 +583,10 @@ async function searchFiles(params: Params): Promise<ExecuteResult> {
   const cliMode = modeMap[mode] || 'auto';
   const args = ['search', query, '--files-only', '--limit', limit.toString(), '--mode', cliMode, '--json'];
 
+  if (enrich) {
+    args.push('--enrich');
+  }
+
   const result = await executeCodexLens(args, { cwd: path });
 
   if (result.success && result.output) {
@@ -764,6 +773,9 @@ Usage:
   codex_lens(action="search", query="func", mode="hybrid")  # Force hybrid search
   codex_lens(action="search_files", query="x")  # Search, return paths only
 
+Graph Enrichment:
+  codex_lens(action="search", query="func", enrich=true)  # Enrich results with code relationships
+
 Search Modes:
   - auto: Auto-detect (hybrid if embeddings exist, exact otherwise) [default]
   - exact/text: Exact FTS for code identifiers
@@ -820,6 +832,11 @@ Note: For advanced operations (config, status, clean), use CLI directly: codexle
         description: 'Maximum number of search results (for search and search_files actions)',
         default: 20,
       },
+      enrich: {
+        type: 'boolean',
+        description: 'Enrich search results with code graph relationships (calls, imports)',
+        default: false,
+      },
     },
     required: ['action'],
   },

ccw/src/tools/smart-search.ts

@@ -36,6 +36,7 @@ const ParamsSchema = z.object({
   includeHidden: z.boolean().default(false),
   languages: z.array(z.string()).optional(),
   limit: z.number().default(10),
+  enrich: z.boolean().default(false),
 });
 
 type Params = z.infer<typeof ParamsSchema>;
@@ -59,11 +60,21 @@ interface ExactMatch {
   content: string;
 }
 
+interface RelationshipInfo {
+  type: string;           // 'calls', 'imports', 'called_by', 'imported_by'
+  direction: 'outgoing' | 'incoming';
+  target?: string;        // Target symbol name (for outgoing)
+  source?: string;        // Source symbol name (for incoming)
+  file: string;           // File path
+  line?: number;          // Line number
+}
+
 interface SemanticMatch {
   file: string;
   score: number;
   content: string;
   symbol: string | null;
+  relationships?: RelationshipInfo[];
 }
 
 interface GraphMatch {
@@ -635,7 +646,7 @@ async function executeRipgrepMode(params: Params): Promise<SearchResult> {
  * Requires index
  */
 async function executeCodexLensExactMode(params: Params): Promise<SearchResult> {
-  const { query, path = '.', maxResults = 10 } = params;
+  const { query, path = '.', maxResults = 10, enrich = false } = params;
 
   if (!query) {
     return {
@@ -657,6 +668,9 @@ async function executeCodexLensExactMode(params: Params): Promise<SearchResult>
   const indexStatus = await checkIndexStatus(path);
 
   const args = ['search', query, '--limit', maxResults.toString(), '--mode', 'exact', '--json'];
+  if (enrich) {
+    args.push('--enrich');
+  }
   const result = await executeCodexLens(args, { cwd: path });
 
   if (!result.success) {
@@ -707,7 +721,7 @@ async function executeCodexLensExactMode(params: Params): Promise<SearchResult>
  * Requires index with embeddings
  */
 async function executeHybridMode(params: Params): Promise<SearchResult> {
-  const { query, path = '.', maxResults = 10 } = params;
+  const { query, path = '.', maxResults = 10, enrich = false } = params;
 
   if (!query) {
     return {
@@ -729,6 +743,9 @@ async function executeHybridMode(params: Params): Promise<SearchResult> {
   const indexStatus = await checkIndexStatus(path);
 
   const args = ['search', query, '--limit', maxResults.toString(), '--mode', 'hybrid', '--json'];
+  if (enrich) {
+    args.push('--enrich');
+  }
   const result = await executeCodexLens(args, { cwd: path });
 
   if (!result.success) {
@@ -958,6 +975,9 @@ export const schema: ToolSchema = {
   smart_search(action="init")                       # Create FTS index for current directory
   smart_search(action="status")                     # Check index and embedding status
 
+**Graph Enrichment:**
+  smart_search(query="func", enrich=true)           # Enrich results with code relationships (calls, imports, called_by, imported_by)
+
 **Modes:** auto (intelligent routing), hybrid (semantic, needs index), exact (FTS), ripgrep (fast, no index), priority (fallback: hybrid→exact→ripgrep)`,
   inputSchema: {
     type: 'object',
@@ -1021,6 +1041,11 @@ export const schema: ToolSchema = {
         items: { type: 'string' },
         description: 'Languages to index (for init action). Example: ["javascript", "typescript"]',
       },
+      enrich: {
+        type: 'boolean',
+        description: 'Enrich search results with code graph relationships (calls, imports, called_by, imported_by).',
+        default: false,
+      },
     },
     required: [],
   },

ccw/tests/smart-search-enrich.test.js

@@ -0,0 +1,257 @@
+/**
+ * Tests for smart_search with enrich parameter
+ *
+ * Tests the following:
+ * - enrich parameter is passed to codex-lens
+ * - relationship data is parsed from response
+ * - SemanticMatch interface with relationships field
+ */
+
+import { describe, it, before, mock } from 'node:test';
+import assert from 'node:assert';
+import { dirname, join } from 'path';
+import { fileURLToPath } from 'url';
+
+const __filename = fileURLToPath(import.meta.url);
+const __dirname = dirname(__filename);
+
+// Import the smart-search module (exports schema, not smartSearchTool)
+const smartSearchPath = new URL('../dist/tools/smart-search.js', import.meta.url).href;
+
+describe('Smart Search Enrich Parameter', async () => {
+  let smartSearchModule;
+
+  before(async () => {
+    try {
+      smartSearchModule = await import(smartSearchPath);
+    } catch (err) {
+      console.log('Note: smart-search module import skipped:', err.message);
+    }
+  });
+
+  describe('Parameter Schema', () => {
+    it('should have enrich parameter in schema', async () => {
+      if (!smartSearchModule) {
+        console.log('Skipping: smart-search module not available');
+        return;
+      }
+
+      const { schema } = smartSearchModule;
+      assert.ok(schema, 'Should export schema');
+      // Schema uses inputSchema (MCP standard), not parameters
+      const params = schema.inputSchema || schema.parameters;
+      assert.ok(params, 'Should have inputSchema or parameters');
+
+      const props = params.properties;
+      assert.ok(props.enrich, 'Should have enrich parameter');
+      assert.strictEqual(props.enrich.type, 'boolean', 'enrich should be boolean');
+      assert.strictEqual(props.enrich.default, false, 'enrich should default to false');
+    });
+
+    it('should describe enrich parameter purpose', async () => {
+      if (!smartSearchModule) {
+        console.log('Skipping: smart-search module not available');
+        return;
+      }
+
+      const { schema } = smartSearchModule;
+      const params = schema.inputSchema || schema.parameters;
+      const enrichDesc = params.properties.enrich?.description || '';
+
+      // Description should mention relationships or graph
+      const mentionsRelationships = enrichDesc.toLowerCase().includes('relationship') ||
+                                    enrichDesc.toLowerCase().includes('graph') ||
+                                    enrichDesc.toLowerCase().includes('enrich');
+      assert.ok(mentionsRelationships, 'enrich description should mention relationships/graph');
+    });
+  });
+
+  describe('SemanticMatch Interface', () => {
+    it('should handle results with relationships field', async () => {
+      if (!smartSearchModule) {
+        console.log('Skipping: smart-search module not available');
+        return;
+      }
+
+      // Create a mock result with relationships
+      const mockResult = {
+        file: 'test.py',
+        score: 0.95,
+        content: 'def main(): pass',
+        symbol: 'main',
+        relationships: [
+          {
+            type: 'calls',
+            direction: 'outgoing',
+            target: 'helper',
+            file: 'test.py',
+            line: 5
+          },
+          {
+            type: 'called_by',
+            direction: 'incoming',
+            source: 'entrypoint',
+            file: 'app.py',
+            line: 10
+          }
+        ]
+      };
+
+      // Verify structure
+      assert.ok(Array.isArray(mockResult.relationships), 'relationships should be array');
+      assert.strictEqual(mockResult.relationships.length, 2, 'should have 2 relationships');
+
+      const outgoing = mockResult.relationships[0];
+      assert.strictEqual(outgoing.type, 'calls');
+      assert.strictEqual(outgoing.direction, 'outgoing');
+      assert.ok(outgoing.target, 'outgoing should have target');
+
+      const incoming = mockResult.relationships[1];
+      assert.strictEqual(incoming.type, 'called_by');
+      assert.strictEqual(incoming.direction, 'incoming');
+      assert.ok(incoming.source, 'incoming should have source');
+    });
+  });
+
+  describe('RelationshipInfo Structure', () => {
+    it('should validate relationship info structure', () => {
+      // Test the expected structure of RelationshipInfo
+      const validRelationship = {
+        type: 'calls',
+        direction: 'outgoing',
+        target: 'some_function',
+        file: 'module.py',
+        line: 42
+      };
+
+      assert.ok(['calls', 'imports', 'extends', 'called_by', 'imported_by', 'extended_by']
+        .includes(validRelationship.type), 'type should be valid relationship type');
+      assert.ok(['outgoing', 'incoming'].includes(validRelationship.direction),
+        'direction should be outgoing or incoming');
+      assert.ok(typeof validRelationship.file === 'string', 'file should be string');
+    });
+
+    it('should allow optional line number', () => {
+      const withLine = {
+        type: 'calls',
+        direction: 'outgoing',
+        target: 'func',
+        file: 'test.py',
+        line: 10
+      };
+
+      const withoutLine = {
+        type: 'imports',
+        direction: 'outgoing',
+        target: 'os',
+        file: 'test.py'
+        // line is optional
+      };
+
+      assert.strictEqual(withLine.line, 10);
+      assert.strictEqual(withoutLine.line, undefined);
+    });
+  });
+});
+
+describe('Smart Search Tool Definition', async () => {
+  let smartSearchModule;
+
+  before(async () => {
+    try {
+      smartSearchModule = await import(smartSearchPath);
+    } catch (err) {
+      console.log('Note: smart-search module not available');
+    }
+  });
+
+  it('should have correct tool name', () => {
+    if (!smartSearchModule) {
+      console.log('Skipping: smart-search module not available');
+      return;
+    }
+
+    assert.strictEqual(smartSearchModule.schema.name, 'smart_search');
+  });
+
+  it('should have all required parameters', () => {
+    if (!smartSearchModule) {
+      console.log('Skipping: smart-search module not available');
+      return;
+    }
+
+    const params = smartSearchModule.schema.inputSchema || smartSearchModule.schema.parameters;
+    const props = params.properties;
+
+    // Core parameters
+    assert.ok(props.action, 'Should have action parameter');
+    assert.ok(props.query, 'Should have query parameter');
+    assert.ok(props.path, 'Should have path parameter');
+
+    // Search parameters
+    assert.ok(props.mode, 'Should have mode parameter');
+    assert.ok(props.maxResults || props.limit, 'Should have maxResults/limit parameter');
+
+    // New enrich parameter
+    assert.ok(props.enrich, 'Should have enrich parameter');
+  });
+
+  it('should support search modes', () => {
+    if (!smartSearchModule) {
+      console.log('Skipping: smart-search module not available');
+      return;
+    }
+
+    const params = smartSearchModule.schema.inputSchema || smartSearchModule.schema.parameters;
+    const modeEnum = params.properties.mode?.enum;
+
+    assert.ok(modeEnum, 'Should have mode enum');
+    assert.ok(modeEnum.includes('auto'), 'Should support auto mode');
+    assert.ok(modeEnum.includes('hybrid'), 'Should support hybrid mode');
+    assert.ok(modeEnum.includes('exact'), 'Should support exact mode');
+  });
+});
+
+describe('Enrich Flag Integration', async () => {
+  let codexLensModule;
+
+  before(async () => {
+    try {
+      const codexLensPath = new URL('../dist/tools/codex-lens.js', import.meta.url).href;
+      codexLensModule = await import(codexLensPath);
+    } catch (err) {
+      console.log('Note: codex-lens module not available');
+    }
+  });
+
+  it('codex-lens should support enrich parameter', () => {
+    if (!codexLensModule) {
+      console.log('Skipping: codex-lens module not available');
+      return;
+    }
+
+    // Use schema export (primary) or codexLensTool (backward-compatible)
+    const toolDef = codexLensModule.schema || codexLensModule.codexLensTool;
+    assert.ok(toolDef, 'Should have schema or codexLensTool export');
+
+    // Schema uses inputSchema (MCP standard), codexLensTool uses parameters
+    const params = toolDef.inputSchema || toolDef.parameters;
+    const props = params.properties;
+    assert.ok(props.enrich, 'should have enrich parameter');
+    assert.strictEqual(props.enrich.type, 'boolean', 'enrich should be boolean');
+  });
+
+  it('should pass enrich flag to command line', async () => {
+    if (!codexLensModule) {
+      console.log('Skipping: codex-lens module not available');
+      return;
+    }
+
+    // Check if executeCodexLens function is exported
+    const { executeCodexLens } = codexLensModule;
+    if (executeCodexLens) {
+      // The function should be available for passing enrich parameter
+      assert.ok(typeof executeCodexLens === 'function', 'executeCodexLens should be a function');
+    }
+  });
+});

codex-lens/src/codexlens/cli/commands.py

@@ -268,6 +268,7 @@ def search(
     files_only: bool = typer.Option(False, "--files-only", "-f", help="Return only file paths without content snippets."),
     mode: str = typer.Option("auto", "--mode", "-m", help="Search mode: auto, exact, fuzzy, hybrid, vector, pure-vector."),
     weights: Optional[str] = typer.Option(None, "--weights", help="Custom RRF weights as 'exact,fuzzy,vector' (e.g., '0.5,0.3,0.2')."),
+    enrich: bool = typer.Option(False, "--enrich", help="Enrich results with code graph relationships (calls, imports)."),
     json_mode: bool = typer.Option(False, "--json", help="Output JSON response."),
     verbose: bool = typer.Option(False, "--verbose", "-v", help="Enable debug logging."),
 ) -> None:
@@ -411,19 +412,42 @@ def search(
                     console.print(fp)
         else:
             result = engine.search(query, search_path, options)
+            results_list = [
+                {
+                    "path": r.path,
+                    "score": r.score,
+                    "excerpt": r.excerpt,
+                    "source": getattr(r, "search_source", None),
+                    "symbol": getattr(r, "symbol", None),
+                }
+                for r in result.results
+            ]
+
+            # Enrich results with relationship data if requested
+            enriched = False
+            if enrich:
+                try:
+                    from codexlens.search.enrichment import RelationshipEnricher
+
+                    # Find index path for the search path
+                    project_record = registry.find_by_source_path(str(search_path))
+                    if project_record:
+                        index_path = Path(project_record["index_root"]) / "_index.db"
+                        if index_path.exists():
+                            with RelationshipEnricher(index_path) as enricher:
+                                results_list = enricher.enrich(results_list, limit=limit)
+                            enriched = True
+                except Exception as e:
+                    # Enrichment failure should not break search
+                    if verbose:
+                        console.print(f"[yellow]Warning: Enrichment failed: {e}[/yellow]")
+
             payload = {
                 "query": query,
                 "mode": actual_mode,
-                "count": len(result.results),
-                "results": [
-                    {
-                        "path": r.path,
-                        "score": r.score,
-                        "excerpt": r.excerpt,
-                        "source": getattr(r, "search_source", None),
-                    }
-                    for r in result.results
-                ],
+                "count": len(results_list),
+                "enriched": enriched,
+                "results": results_list,
                 "stats": {
                     "dirs_searched": result.stats.dirs_searched,
                     "files_matched": result.stats.files_matched,
@@ -434,7 +458,8 @@ def search(
                 print_json(success=True, result=payload)
             else:
                 render_search_results(result.results, verbose=verbose)
-                console.print(f"[dim]Mode: {actual_mode} | Searched {result.stats.dirs_searched} directories in {result.stats.time_ms:.1f}ms[/dim]")
+                enrich_status = " | [green]Enriched[/green]" if enriched else ""
+                console.print(f"[dim]Mode: {actual_mode} | Searched {result.stats.dirs_searched} directories in {result.stats.time_ms:.1f}ms{enrich_status}[/dim]")
 
     except SearchError as exc:
         if json_mode:

codex-lens/src/codexlens/indexing/README.md

@@ -0,0 +1,77 @@
+# Symbol Extraction and Indexing
+
+This module provides symbol extraction and relationship tracking for code graph enrichment.
+
+## Overview
+
+The `SymbolExtractor` class extracts code symbols (functions, classes) and their relationships (calls, imports) from source files using regex-based pattern matching.
+
+## Supported Languages
+
+- Python (.py)
+- TypeScript (.ts, .tsx)
+- JavaScript (.js, .jsx)
+
+## Database Schema
+
+### Symbols Table
+Stores code symbols with their location information:
+- `id`: Primary key
+- `qualified_name`: Fully qualified name (e.g., "module.ClassName")
+- `name`: Symbol name
+- `kind`: Symbol type (function, class)
+- `file_path`: Path to source file
+- `start_line`: Starting line number
+- `end_line`: Ending line number
+
+### Symbol Relationships Table
+Stores relationships between symbols:
+- `id`: Primary key
+- `source_symbol_id`: Foreign key to symbols table
+- `target_symbol_fqn`: Fully qualified name of target symbol
+- `relationship_type`: Type of relationship (calls, imports)
+- `file_path`: Path to source file
+- `line`: Line number where relationship occurs
+
+## Usage Example
+
+```python
+from pathlib import Path
+from codexlens.indexing.symbol_extractor import SymbolExtractor
+
+# Initialize extractor
+db_path = Path("./code_index.db")
+extractor = SymbolExtractor(db_path)
+extractor.connect()
+
+# Extract from file
+file_path = Path("src/my_module.py")
+with open(file_path) as f:
+    content = f.read()
+
+symbols, relationships = extractor.extract_from_file(file_path, content)
+
+# Save to database
+name_to_id = extractor.save_symbols(symbols)
+extractor.save_relationships(relationships, name_to_id)
+
+# Clean up
+extractor.close()
+```
+
+## Pattern Matching
+
+The extractor uses regex patterns to identify:
+
+- **Functions**: Function definitions (including async, export keywords)
+- **Classes**: Class definitions (including export keyword)
+- **Imports**: Import/require statements
+- **Calls**: Function/method invocations
+
+## Future Enhancements
+
+- Tree-sitter integration for more accurate parsing
+- Support for additional languages
+- Method and variable extraction
+- Enhanced scope tracking
+- Relationship type expansion (inherits, implements, etc.)

codex-lens/src/codexlens/indexing/__init__.py

@@ -0,0 +1,4 @@
+"""Code indexing and symbol extraction."""
+from codexlens.indexing.symbol_extractor import SymbolExtractor
+
+__all__ = ["SymbolExtractor"]

codex-lens/src/codexlens/indexing/symbol_extractor.py

@@ -0,0 +1,234 @@
+"""Symbol and relationship extraction from source code."""
+import re
+import sqlite3
+from pathlib import Path
+from typing import Any, Dict, List, Optional, Tuple
+
+
+class SymbolExtractor:
+    """Extract symbols and relationships from source code using regex patterns."""
+
+    # Pattern definitions for different languages
+    PATTERNS = {
+        'python': {
+            'function': r'^(?:async\s+)?def\s+(\w+)\s*\(',
+            'class': r'^class\s+(\w+)\s*[:\(]',
+            'import': r'^(?:from\s+([\w.]+)\s+)?import\s+([\w.,\s]+)',
+            'call': r'(?<![.\w])(\w+)\s*\(',
+        },
+        'typescript': {
+            'function': r'(?:export\s+)?(?:async\s+)?function\s+(\w+)\s*[<\(]',
+            'class': r'(?:export\s+)?class\s+(\w+)',
+            'import': r"import\s+.*\s+from\s+['\"]([^'\"]+)['\"]",
+            'call': r'(?<![.\w])(\w+)\s*[<\(]',
+        },
+        'javascript': {
+            'function': r'(?:export\s+)?(?:async\s+)?function\s+(\w+)\s*\(',
+            'class': r'(?:export\s+)?class\s+(\w+)',
+            'import': r"(?:import|require)\s*\(?['\"]([^'\"]+)['\"]",
+            'call': r'(?<![.\w])(\w+)\s*\(',
+        }
+    }
+
+    LANGUAGE_MAP = {
+        '.py': 'python',
+        '.ts': 'typescript',
+        '.tsx': 'typescript',
+        '.js': 'javascript',
+        '.jsx': 'javascript',
+    }
+
+    def __init__(self, db_path: Path):
+        self.db_path = db_path
+        self.db_conn: Optional[sqlite3.Connection] = None
+
+    def connect(self) -> None:
+        """Connect to database and ensure schema exists."""
+        self.db_conn = sqlite3.connect(str(self.db_path))
+        self._ensure_tables()
+
+    def _ensure_tables(self) -> None:
+        """Create symbols and relationships tables if they don't exist."""
+        if not self.db_conn:
+            return
+        cursor = self.db_conn.cursor()
+
+        # Create symbols table with qualified_name
+        cursor.execute('''
+            CREATE TABLE IF NOT EXISTS symbols (
+                id INTEGER PRIMARY KEY AUTOINCREMENT,
+                qualified_name TEXT NOT NULL,
+                name TEXT NOT NULL,
+                kind TEXT NOT NULL,
+                file_path TEXT NOT NULL,
+                start_line INTEGER NOT NULL,
+                end_line INTEGER NOT NULL,
+                UNIQUE(file_path, name, start_line)
+            )
+        ''')
+
+        # Create relationships table with target_symbol_fqn
+        cursor.execute('''
+            CREATE TABLE IF NOT EXISTS symbol_relationships (
+                id INTEGER PRIMARY KEY AUTOINCREMENT,
+                source_symbol_id INTEGER NOT NULL,
+                target_symbol_fqn TEXT NOT NULL,
+                relationship_type TEXT NOT NULL,
+                file_path TEXT NOT NULL,
+                line INTEGER,
+                FOREIGN KEY (source_symbol_id) REFERENCES symbols(id) ON DELETE CASCADE
+            )
+        ''')
+
+        # Create performance indexes
+        cursor.execute('CREATE INDEX IF NOT EXISTS idx_symbols_name ON symbols(name)')
+        cursor.execute('CREATE INDEX IF NOT EXISTS idx_symbols_file ON symbols(file_path)')
+        cursor.execute('CREATE INDEX IF NOT EXISTS idx_rel_source ON symbol_relationships(source_symbol_id)')
+        cursor.execute('CREATE INDEX IF NOT EXISTS idx_rel_target ON symbol_relationships(target_symbol_fqn)')
+        cursor.execute('CREATE INDEX IF NOT EXISTS idx_rel_type ON symbol_relationships(relationship_type)')
+
+        self.db_conn.commit()
+
+    def extract_from_file(self, file_path: Path, content: str) -> Tuple[List[Dict], List[Dict]]:
+        """Extract symbols and relationships from file content.
+
+        Args:
+            file_path: Path to the source file
+            content: File content as string
+
+        Returns:
+            Tuple of (symbols, relationships) where:
+            - symbols: List of symbol dicts with qualified_name, name, kind, file_path, start_line, end_line
+            - relationships: List of relationship dicts with source_scope, target, type, file_path, line
+        """
+        ext = file_path.suffix.lower()
+        lang = self.LANGUAGE_MAP.get(ext)
+
+        if not lang or lang not in self.PATTERNS:
+            return [], []
+
+        patterns = self.PATTERNS[lang]
+        symbols = []
+        relationships = []
+        lines = content.split('\n')
+
+        current_scope = None
+
+        for line_num, line in enumerate(lines, 1):
+            # Extract function/class definitions
+            for kind in ['function', 'class']:
+                if kind in patterns:
+                    match = re.search(patterns[kind], line)
+                    if match:
+                        name = match.group(1)
+                        qualified_name = f"{file_path.stem}.{name}"
+                        symbols.append({
+                            'qualified_name': qualified_name,
+                            'name': name,
+                            'kind': kind,
+                            'file_path': str(file_path),
+                            'start_line': line_num,
+                            'end_line': line_num,  # Simplified - would need proper parsing for actual end
+                        })
+                        current_scope = name
+
+            # Extract imports
+            if 'import' in patterns:
+                match = re.search(patterns['import'], line)
+                if match:
+                    import_target = match.group(1) or match.group(2) if match.lastindex >= 2 else match.group(1)
+                    if import_target and current_scope:
+                        relationships.append({
+                            'source_scope': current_scope,
+                            'target': import_target.strip(),
+                            'type': 'imports',
+                            'file_path': str(file_path),
+                            'line': line_num,
+                        })
+
+            # Extract function calls (simplified)
+            if 'call' in patterns and current_scope:
+                for match in re.finditer(patterns['call'], line):
+                    call_name = match.group(1)
+                    # Skip common keywords and the current function
+                    if call_name not in ['if', 'for', 'while', 'return', 'print', 'len', 'str', 'int', 'float', 'list', 'dict', 'set', 'tuple', current_scope]:
+                        relationships.append({
+                            'source_scope': current_scope,
+                            'target': call_name,
+                            'type': 'calls',
+                            'file_path': str(file_path),
+                            'line': line_num,
+                        })
+
+        return symbols, relationships
+
+    def save_symbols(self, symbols: List[Dict]) -> Dict[str, int]:
+        """Save symbols to database and return name->id mapping.
+
+        Args:
+            symbols: List of symbol dicts with qualified_name, name, kind, file_path, start_line, end_line
+
+        Returns:
+            Dictionary mapping symbol name to database id
+        """
+        if not self.db_conn or not symbols:
+            return {}
+
+        cursor = self.db_conn.cursor()
+        name_to_id = {}
+
+        for sym in symbols:
+            try:
+                cursor.execute('''
+                    INSERT OR IGNORE INTO symbols
+                    (qualified_name, name, kind, file_path, start_line, end_line)
+                    VALUES (?, ?, ?, ?, ?, ?)
+                ''', (sym['qualified_name'], sym['name'], sym['kind'],
+                      sym['file_path'], sym['start_line'], sym['end_line']))
+
+                # Get the id
+                cursor.execute('''
+                    SELECT id FROM symbols
+                    WHERE file_path = ? AND name = ? AND start_line = ?
+                ''', (sym['file_path'], sym['name'], sym['start_line']))
+
+                row = cursor.fetchone()
+                if row:
+                    name_to_id[sym['name']] = row[0]
+            except sqlite3.Error:
+                continue
+
+        self.db_conn.commit()
+        return name_to_id
+
+    def save_relationships(self, relationships: List[Dict], name_to_id: Dict[str, int]) -> None:
+        """Save relationships to database.
+
+        Args:
+            relationships: List of relationship dicts with source_scope, target, type, file_path, line
+            name_to_id: Dictionary mapping symbol names to database ids
+        """
+        if not self.db_conn or not relationships:
+            return
+
+        cursor = self.db_conn.cursor()
+
+        for rel in relationships:
+            source_id = name_to_id.get(rel['source_scope'])
+            if source_id:
+                try:
+                    cursor.execute('''
+                        INSERT INTO symbol_relationships
+                        (source_symbol_id, target_symbol_fqn, relationship_type, file_path, line)
+                        VALUES (?, ?, ?, ?, ?)
+                    ''', (source_id, rel['target'], rel['type'], rel['file_path'], rel['line']))
+                except sqlite3.Error:
+                    continue
+
+        self.db_conn.commit()
+
+    def close(self) -> None:
+        """Close database connection."""
+        if self.db_conn:
+            self.db_conn.close()
+            self.db_conn = None

codex-lens/src/codexlens/search/enrichment.py

@@ -0,0 +1,150 @@
+# codex-lens/src/codexlens/search/enrichment.py
+"""Relationship enrichment for search results."""
+import sqlite3
+from pathlib import Path
+from typing import List, Dict, Any, Optional
+
+
+class RelationshipEnricher:
+    """Enriches search results with code graph relationships."""
+
+    def __init__(self, index_path: Path):
+        """Initialize with path to index database.
+
+        Args:
+            index_path: Path to _index.db SQLite database
+        """
+        self.index_path = index_path
+        self.db_conn: Optional[sqlite3.Connection] = None
+        self._connect()
+
+    def _connect(self) -> None:
+        """Establish read-only database connection."""
+        if self.index_path.exists():
+            self.db_conn = sqlite3.connect(
+                f"file:{self.index_path}?mode=ro",
+                uri=True,
+                check_same_thread=False
+            )
+            self.db_conn.row_factory = sqlite3.Row
+
+    def enrich(self, results: List[Dict[str, Any]], limit: int = 10) -> List[Dict[str, Any]]:
+        """Add relationship data to search results.
+
+        Args:
+            results: List of search result dictionaries
+            limit: Maximum number of results to enrich
+
+        Returns:
+            Results with relationships field added
+        """
+        if not self.db_conn:
+            return results
+
+        for result in results[:limit]:
+            file_path = result.get('file') or result.get('path')
+            symbol_name = result.get('symbol')
+            result['relationships'] = self._find_relationships(file_path, symbol_name)
+        return results
+
+    def _find_relationships(self, file_path: Optional[str], symbol_name: Optional[str]) -> List[Dict[str, Any]]:
+        """Query relationships for a symbol.
+
+        Args:
+            file_path: Path to file containing the symbol
+            symbol_name: Name of the symbol
+
+        Returns:
+            List of relationship dictionaries with type, direction, target/source, file, line
+        """
+        if not self.db_conn or not symbol_name:
+            return []
+
+        relationships = []
+        cursor = self.db_conn.cursor()
+
+        try:
+            # Find symbol ID(s) by name and optionally file
+            if file_path:
+                cursor.execute(
+                    'SELECT id FROM symbols WHERE name = ? AND file_path = ?',
+                    (symbol_name, file_path)
+                )
+            else:
+                cursor.execute('SELECT id FROM symbols WHERE name = ?', (symbol_name,))
+
+            symbol_ids = [row[0] for row in cursor.fetchall()]
+
+            if not symbol_ids:
+                return []
+
+            # Query outgoing relationships (symbol is source)
+            placeholders = ','.join('?' * len(symbol_ids))
+            cursor.execute(f'''
+                SELECT sr.relationship_type, sr.target_symbol_fqn, sr.file_path, sr.line
+                FROM symbol_relationships sr
+                WHERE sr.source_symbol_id IN ({placeholders})
+            ''', symbol_ids)
+
+            for row in cursor.fetchall():
+                relationships.append({
+                    'type': row[0],
+                    'direction': 'outgoing',
+                    'target': row[1],
+                    'file': row[2],
+                    'line': row[3],
+                })
+
+            # Query incoming relationships (symbol is target)
+            # Match against symbol name or qualified name patterns
+            cursor.execute('''
+                SELECT sr.relationship_type, s.name AS source_name, sr.file_path, sr.line
+                FROM symbol_relationships sr
+                JOIN symbols s ON sr.source_symbol_id = s.id
+                WHERE sr.target_symbol_fqn = ? OR sr.target_symbol_fqn LIKE ?
+            ''', (symbol_name, f'%.{symbol_name}'))
+
+            for row in cursor.fetchall():
+                rel_type = row[0]
+                # Convert to incoming type
+                incoming_type = self._to_incoming_type(rel_type)
+                relationships.append({
+                    'type': incoming_type,
+                    'direction': 'incoming',
+                    'source': row[1],
+                    'file': row[2],
+                    'line': row[3],
+                })
+
+        except sqlite3.Error:
+            return []
+
+        return relationships
+
+    def _to_incoming_type(self, outgoing_type: str) -> str:
+        """Convert outgoing relationship type to incoming type.
+
+        Args:
+            outgoing_type: The outgoing relationship type (e.g., 'calls', 'imports')
+
+        Returns:
+            Corresponding incoming type (e.g., 'called_by', 'imported_by')
+        """
+        type_map = {
+            'calls': 'called_by',
+            'imports': 'imported_by',
+            'extends': 'extended_by',
+        }
+        return type_map.get(outgoing_type, f'{outgoing_type}_by')
+
+    def close(self) -> None:
+        """Close database connection."""
+        if self.db_conn:
+            self.db_conn.close()
+            self.db_conn = None
+
+    def __enter__(self) -> 'RelationshipEnricher':
+        return self
+
+    def __exit__(self, exc_type, exc_val, exc_tb) -> None:
+        self.close()

codex-lens/tests/test_cli_search.py

@@ -0,0 +1,122 @@
+"""Tests for CLI search command with --enrich flag."""
+
+import json
+import pytest
+from typer.testing import CliRunner
+from codexlens.cli.commands import app
+
+
+class TestCLISearchEnrich:
+    """Test CLI search command with --enrich flag integration."""
+
+    @pytest.fixture
+    def runner(self):
+        """Create CLI test runner."""
+        return CliRunner()
+
+    def test_search_with_enrich_flag_help(self, runner):
+        """Test --enrich flag is documented in help."""
+        result = runner.invoke(app, ["search", "--help"])
+        assert result.exit_code == 0
+        assert "--enrich" in result.output
+        assert "relationships" in result.output.lower() or "graph" in result.output.lower()
+
+    def test_search_with_enrich_flag_accepted(self, runner):
+        """Test --enrich flag is accepted by the CLI."""
+        result = runner.invoke(app, ["search", "test", "--enrich"])
+        # Should not show 'unknown option' error
+        assert "No such option" not in result.output
+        assert "error: unrecognized" not in result.output.lower()
+
+    def test_search_without_enrich_flag(self, runner):
+        """Test search without --enrich flag has no relationships."""
+        result = runner.invoke(app, ["search", "test", "--json"])
+        # Even without an index, JSON should be attempted
+        if result.exit_code == 0:
+            try:
+                data = json.loads(result.output)
+                # If we get results, they should not have enriched=true
+                if data.get("success") and "result" in data:
+                    assert data["result"].get("enriched", False) is False
+            except json.JSONDecodeError:
+                pass  # Not JSON output, that's fine for error cases
+
+    def test_search_enrich_json_output_structure(self, runner):
+        """Test JSON output structure includes enriched flag."""
+        result = runner.invoke(app, ["search", "test", "--json", "--enrich"])
+        # If we get valid JSON output, check structure
+        if result.exit_code == 0:
+            try:
+                data = json.loads(result.output)
+                if data.get("success") and "result" in data:
+                    # enriched field should exist
+                    assert "enriched" in data["result"]
+            except json.JSONDecodeError:
+                pass  # Not JSON output
+
+    def test_search_enrich_with_mode(self, runner):
+        """Test --enrich works with different search modes."""
+        modes = ["exact", "fuzzy", "hybrid"]
+        for mode in modes:
+            result = runner.invoke(
+                app, ["search", "test", "--mode", mode, "--enrich"]
+            )
+            # Should not show validation errors
+            assert "Invalid" not in result.output
+
+
+class TestEnrichFlagBehavior:
+    """Test behavioral aspects of --enrich flag."""
+
+    @pytest.fixture
+    def runner(self):
+        """Create CLI test runner."""
+        return CliRunner()
+
+    def test_enrich_failure_does_not_break_search(self, runner):
+        """Test that enrichment failure doesn't prevent search from returning results."""
+        # Even without proper index, search should not crash due to enrich
+        result = runner.invoke(app, ["search", "test", "--enrich", "--verbose"])
+        # Should not have unhandled exception
+        assert "Traceback" not in result.output
+
+    def test_enrich_flag_with_files_only(self, runner):
+        """Test --enrich is accepted with --files-only mode."""
+        result = runner.invoke(app, ["search", "test", "--enrich", "--files-only"])
+        # Should not show option conflict error
+        assert "conflict" not in result.output.lower()
+
+    def test_enrich_flag_with_limit(self, runner):
+        """Test --enrich works with --limit parameter."""
+        result = runner.invoke(app, ["search", "test", "--enrich", "--limit", "5"])
+        # Should not show validation error
+        assert "Invalid" not in result.output
+
+
+class TestEnrichOutputFormat:
+    """Test output format with --enrich flag."""
+
+    @pytest.fixture
+    def runner(self):
+        """Create CLI test runner."""
+        return CliRunner()
+
+    def test_enrich_verbose_shows_status(self, runner):
+        """Test verbose mode shows enrichment status."""
+        result = runner.invoke(app, ["search", "test", "--enrich", "--verbose"])
+        # Verbose mode may show enrichment info or warnings
+        # Just ensure it doesn't crash
+        assert result.exit_code in [0, 1]  # 0 = success, 1 = no index
+
+    def test_json_output_has_enriched_field(self, runner):
+        """Test JSON output always has enriched field when --enrich used."""
+        result = runner.invoke(app, ["search", "test", "--json", "--enrich"])
+        if result.exit_code == 0:
+            try:
+                data = json.loads(result.output)
+                if data.get("success"):
+                    result_data = data.get("result", {})
+                    assert "enriched" in result_data
+                    assert isinstance(result_data["enriched"], bool)
+            except json.JSONDecodeError:
+                pass

codex-lens/tests/test_enrichment.py

@@ -0,0 +1,234 @@
+"""Tests for search result enrichment with relationship data."""
+import sqlite3
+import tempfile
+import time
+from pathlib import Path
+
+import pytest
+
+from codexlens.search.enrichment import RelationshipEnricher
+
+
+@pytest.fixture
+def mock_db():
+    """Create a mock database with symbols and relationships."""
+    with tempfile.TemporaryDirectory() as tmpdir:
+        db_path = Path(tmpdir) / "_index.db"
+        conn = sqlite3.connect(str(db_path))
+        cursor = conn.cursor()
+
+        # Create schema
+        cursor.execute('''
+            CREATE TABLE symbols (
+                id INTEGER PRIMARY KEY AUTOINCREMENT,
+                qualified_name TEXT NOT NULL,
+                name TEXT NOT NULL,
+                kind TEXT NOT NULL,
+                file_path TEXT NOT NULL,
+                start_line INTEGER NOT NULL,
+                end_line INTEGER NOT NULL
+            )
+        ''')
+        cursor.execute('''
+            CREATE TABLE symbol_relationships (
+                id INTEGER PRIMARY KEY AUTOINCREMENT,
+                source_symbol_id INTEGER NOT NULL,
+                target_symbol_fqn TEXT NOT NULL,
+                relationship_type TEXT NOT NULL,
+                file_path TEXT NOT NULL,
+                line INTEGER,
+                FOREIGN KEY (source_symbol_id) REFERENCES symbols(id)
+            )
+        ''')
+
+        # Insert test data
+        cursor.execute('''
+            INSERT INTO symbols (qualified_name, name, kind, file_path, start_line, end_line)
+            VALUES ('module.main', 'main', 'function', 'module.py', 1, 10)
+        ''')
+        main_id = cursor.lastrowid
+
+        cursor.execute('''
+            INSERT INTO symbols (qualified_name, name, kind, file_path, start_line, end_line)
+            VALUES ('module.helper', 'helper', 'function', 'module.py', 12, 20)
+        ''')
+        helper_id = cursor.lastrowid
+
+        cursor.execute('''
+            INSERT INTO symbols (qualified_name, name, kind, file_path, start_line, end_line)
+            VALUES ('utils.fetch', 'fetch', 'function', 'utils.py', 1, 5)
+        ''')
+        fetch_id = cursor.lastrowid
+
+        # main calls helper
+        cursor.execute('''
+            INSERT INTO symbol_relationships (source_symbol_id, target_symbol_fqn, relationship_type, file_path, line)
+            VALUES (?, 'helper', 'calls', 'module.py', 5)
+        ''', (main_id,))
+
+        # main calls fetch
+        cursor.execute('''
+            INSERT INTO symbol_relationships (source_symbol_id, target_symbol_fqn, relationship_type, file_path, line)
+            VALUES (?, 'utils.fetch', 'calls', 'module.py', 6)
+        ''', (main_id,))
+
+        # helper imports os
+        cursor.execute('''
+            INSERT INTO symbol_relationships (source_symbol_id, target_symbol_fqn, relationship_type, file_path, line)
+            VALUES (?, 'os', 'imports', 'module.py', 13)
+        ''', (helper_id,))
+
+        conn.commit()
+        conn.close()
+
+        yield db_path
+
+
+class TestRelationshipEnricher:
+    """Test suite for RelationshipEnricher."""
+
+    def test_enrich_with_relationships(self, mock_db):
+        """Test enriching results with valid relationships."""
+        with RelationshipEnricher(mock_db) as enricher:
+            results = [
+                {"path": "module.py", "score": 0.9, "excerpt": "def main():", "symbol": "main"},
+                {"path": "module.py", "score": 0.8, "excerpt": "def helper():", "symbol": "helper"},
+            ]
+
+            enriched = enricher.enrich(results, limit=10)
+
+            # Check main's relationships
+            main_result = enriched[0]
+            assert "relationships" in main_result
+            main_rels = main_result["relationships"]
+            assert len(main_rels) >= 2
+
+            # Verify outgoing relationships
+            outgoing = [r for r in main_rels if r["direction"] == "outgoing"]
+            targets = [r["target"] for r in outgoing]
+            assert "helper" in targets or any("helper" in t for t in targets)
+
+            # Check helper's relationships
+            helper_result = enriched[1]
+            assert "relationships" in helper_result
+            helper_rels = helper_result["relationships"]
+            assert len(helper_rels) >= 1
+
+            # Verify incoming relationships (main calls helper)
+            incoming = [r for r in helper_rels if r["direction"] == "incoming"]
+            assert len(incoming) >= 1
+            assert incoming[0]["type"] == "called_by"
+
+    def test_enrich_missing_symbol(self, mock_db):
+        """Test graceful handling of missing symbols."""
+        with RelationshipEnricher(mock_db) as enricher:
+            results = [
+                {"path": "unknown.py", "score": 0.9, "excerpt": "code", "symbol": "nonexistent"},
+            ]
+
+            enriched = enricher.enrich(results, limit=10)
+
+            # Should return empty relationships, not crash
+            assert "relationships" in enriched[0]
+            assert enriched[0]["relationships"] == []
+
+    def test_enrich_no_symbol_name(self, mock_db):
+        """Test handling results without symbol names."""
+        with RelationshipEnricher(mock_db) as enricher:
+            results = [
+                {"path": "module.py", "score": 0.9, "excerpt": "code", "symbol": None},
+            ]
+
+            enriched = enricher.enrich(results, limit=10)
+
+            assert "relationships" in enriched[0]
+            assert enriched[0]["relationships"] == []
+
+    def test_enrich_performance(self, mock_db):
+        """Test that enrichment is fast (<100ms for 10 results)."""
+        with RelationshipEnricher(mock_db) as enricher:
+            results = [
+                {"path": "module.py", "score": 0.9, "excerpt": f"code{i}", "symbol": "main"}
+                for i in range(10)
+            ]
+
+            start = time.perf_counter()
+            enricher.enrich(results, limit=10)
+            elapsed_ms = (time.perf_counter() - start) * 1000
+
+            assert elapsed_ms < 100, f"Enrichment took {elapsed_ms:.1f}ms, expected < 100ms"
+
+    def test_enrich_limit(self, mock_db):
+        """Test that limit parameter is respected."""
+        with RelationshipEnricher(mock_db) as enricher:
+            results = [
+                {"path": "module.py", "score": 0.9, "symbol": "main"},
+                {"path": "module.py", "score": 0.8, "symbol": "helper"},
+                {"path": "utils.py", "score": 0.7, "symbol": "fetch"},
+            ]
+
+            # Only enrich first 2
+            enriched = enricher.enrich(results, limit=2)
+
+            assert "relationships" in enriched[0]
+            assert "relationships" in enriched[1]
+            # Third result should NOT have relationships key
+            assert "relationships" not in enriched[2]
+
+    def test_connection_failure_graceful(self):
+        """Test graceful handling when database doesn't exist."""
+        nonexistent = Path("/nonexistent/path/_index.db")
+        with RelationshipEnricher(nonexistent) as enricher:
+            results = [{"path": "test.py", "score": 0.9, "symbol": "test"}]
+            enriched = enricher.enrich(results)
+
+            # Should return original results without crashing
+            assert len(enriched) == 1
+
+    def test_incoming_type_conversion(self, mock_db):
+        """Test that relationship types are correctly converted for incoming."""
+        with RelationshipEnricher(mock_db) as enricher:
+            results = [
+                {"path": "module.py", "score": 0.9, "symbol": "helper"},
+            ]
+
+            enriched = enricher.enrich(results)
+            rels = enriched[0]["relationships"]
+
+            incoming = [r for r in rels if r["direction"] == "incoming"]
+            if incoming:
+                # calls should become called_by
+                assert incoming[0]["type"] == "called_by"
+
+    def test_context_manager(self, mock_db):
+        """Test that context manager properly opens and closes connections."""
+        enricher = RelationshipEnricher(mock_db)
+        assert enricher.db_conn is not None
+
+        enricher.close()
+        assert enricher.db_conn is None
+
+        # Using context manager
+        with RelationshipEnricher(mock_db) as e:
+            assert e.db_conn is not None
+        assert e.db_conn is None
+
+    def test_relationship_data_structure(self, mock_db):
+        """Test that relationship data has correct structure."""
+        with RelationshipEnricher(mock_db) as enricher:
+            results = [{"path": "module.py", "score": 0.9, "symbol": "main"}]
+            enriched = enricher.enrich(results)
+
+            rels = enriched[0]["relationships"]
+            for rel in rels:
+                # All relationships should have required fields
+                assert "type" in rel
+                assert "direction" in rel
+                assert "file" in rel
+                assert rel["direction"] in ["outgoing", "incoming"]
+
+                # Outgoing should have target, incoming should have source
+                if rel["direction"] == "outgoing":
+                    assert "target" in rel
+                else:
+                    assert "source" in rel

codex-lens/tests/test_symbol_extractor.py

@@ -0,0 +1,238 @@
+"""Tests for symbol extraction and relationship tracking."""
+import tempfile
+from pathlib import Path
+
+import pytest
+
+from codexlens.indexing.symbol_extractor import SymbolExtractor
+
+
+@pytest.fixture
+def extractor():
+    """Create a temporary symbol extractor for testing."""
+    with tempfile.TemporaryDirectory() as tmpdir:
+        db_path = Path(tmpdir) / "test.db"
+        ext = SymbolExtractor(db_path)
+        ext.connect()
+        yield ext
+        ext.close()
+
+
+class TestSymbolExtractor:
+    """Test suite for SymbolExtractor."""
+
+    def test_database_schema_creation(self, extractor):
+        """Test that database tables and indexes are created correctly."""
+        cursor = extractor.db_conn.cursor()
+
+        # Check symbols table exists
+        cursor.execute(
+            "SELECT name FROM sqlite_master WHERE type='table' AND name='symbols'"
+        )
+        assert cursor.fetchone() is not None
+
+        # Check symbol_relationships table exists
+        cursor.execute(
+            "SELECT name FROM sqlite_master WHERE type='table' AND name='symbol_relationships'"
+        )
+        assert cursor.fetchone() is not None
+
+        # Check indexes exist
+        cursor.execute(
+            "SELECT COUNT(*) FROM sqlite_master WHERE type='index' AND name LIKE 'idx_%'"
+        )
+        idx_count = cursor.fetchone()[0]
+        assert idx_count == 5
+
+    def test_python_function_extraction(self, extractor):
+        """Test extracting functions from Python code."""
+        code = """
+def hello():
+    pass
+
+async def world():
+    pass
+"""
+        symbols, _ = extractor.extract_from_file(Path("test.py"), code)
+
+        assert len(symbols) == 2
+        assert symbols[0]["name"] == "hello"
+        assert symbols[0]["kind"] == "function"
+        assert symbols[1]["name"] == "world"
+        assert symbols[1]["kind"] == "function"
+
+    def test_python_class_extraction(self, extractor):
+        """Test extracting classes from Python code."""
+        code = """
+class MyClass:
+    pass
+
+class AnotherClass(BaseClass):
+    pass
+"""
+        symbols, _ = extractor.extract_from_file(Path("test.py"), code)
+
+        assert len(symbols) == 2
+        assert symbols[0]["name"] == "MyClass"
+        assert symbols[0]["kind"] == "class"
+        assert symbols[1]["name"] == "AnotherClass"
+        assert symbols[1]["kind"] == "class"
+
+    def test_typescript_extraction(self, extractor):
+        """Test extracting symbols from TypeScript code."""
+        code = """
+export function calculateSum(a: number, b: number): number {
+    return a + b;
+}
+
+export class Calculator {
+    multiply(x: number, y: number) {
+        return x * y;
+    }
+}
+"""
+        symbols, _ = extractor.extract_from_file(Path("test.ts"), code)
+
+        assert len(symbols) == 2
+        assert symbols[0]["name"] == "calculateSum"
+        assert symbols[0]["kind"] == "function"
+        assert symbols[1]["name"] == "Calculator"
+        assert symbols[1]["kind"] == "class"
+
+    def test_javascript_extraction(self, extractor):
+        """Test extracting symbols from JavaScript code."""
+        code = """
+function processData(data) {
+    return data;
+}
+
+class DataProcessor {
+    transform(input) {
+        return input;
+    }
+}
+"""
+        symbols, _ = extractor.extract_from_file(Path("test.js"), code)
+
+        assert len(symbols) == 2
+        assert symbols[0]["name"] == "processData"
+        assert symbols[1]["name"] == "DataProcessor"
+
+    def test_relationship_extraction(self, extractor):
+        """Test extracting relationships between symbols."""
+        code = """
+def helper():
+    pass
+
+def main():
+    helper()
+    print("done")
+"""
+        _, relationships = extractor.extract_from_file(Path("test.py"), code)
+
+        # Should find calls to helper and print
+        call_targets = [r["target"] for r in relationships if r["type"] == "calls"]
+        assert "helper" in call_targets
+
+    def test_save_and_query_symbols(self, extractor):
+        """Test saving symbols to database and querying them."""
+        code = """
+def test_func():
+    pass
+
+class TestClass:
+    pass
+"""
+        symbols, _ = extractor.extract_from_file(Path("test.py"), code)
+        name_to_id = extractor.save_symbols(symbols)
+
+        assert len(name_to_id) == 2
+        assert "test_func" in name_to_id
+        assert "TestClass" in name_to_id
+
+        # Query database
+        cursor = extractor.db_conn.cursor()
+        cursor.execute("SELECT COUNT(*) FROM symbols")
+        count = cursor.fetchone()[0]
+        assert count == 2
+
+    def test_save_relationships(self, extractor):
+        """Test saving relationships to database."""
+        code = """
+def caller():
+    callee()
+
+def callee():
+    pass
+"""
+        symbols, relationships = extractor.extract_from_file(Path("test.py"), code)
+        name_to_id = extractor.save_symbols(symbols)
+        extractor.save_relationships(relationships, name_to_id)
+
+        # Query database
+        cursor = extractor.db_conn.cursor()
+        cursor.execute("SELECT COUNT(*) FROM symbol_relationships")
+        count = cursor.fetchone()[0]
+        assert count > 0
+
+    def test_qualified_name_generation(self, extractor):
+        """Test that qualified names are generated correctly."""
+        code = """
+class MyClass:
+    pass
+"""
+        symbols, _ = extractor.extract_from_file(Path("module.py"), code)
+
+        assert symbols[0]["qualified_name"] == "module.MyClass"
+
+    def test_unsupported_language(self, extractor):
+        """Test that unsupported languages return empty results."""
+        code = "some random code"
+        symbols, relationships = extractor.extract_from_file(Path("test.txt"), code)
+
+        assert len(symbols) == 0
+        assert len(relationships) == 0
+
+    def test_empty_file(self, extractor):
+        """Test handling empty files."""
+        symbols, relationships = extractor.extract_from_file(Path("test.py"), "")
+
+        assert len(symbols) == 0
+        assert len(relationships) == 0
+
+    def test_complete_workflow(self, extractor):
+        """Test complete workflow: extract, save, and verify."""
+        code = """
+class UserService:
+    def get_user(self, user_id):
+        return fetch_user(user_id)
+
+def main():
+    service = UserService()
+    service.get_user(1)
+"""
+        file_path = Path("service.py")
+        symbols, relationships = extractor.extract_from_file(file_path, code)
+
+        # Save to database
+        name_to_id = extractor.save_symbols(symbols)
+        extractor.save_relationships(relationships, name_to_id)
+
+        # Verify symbols
+        cursor = extractor.db_conn.cursor()
+        cursor.execute("SELECT name, kind FROM symbols ORDER BY start_line")
+        db_symbols = cursor.fetchall()
+        assert len(db_symbols) == 2
+        assert db_symbols[0][0] == "UserService"
+        assert db_symbols[1][0] == "main"
+
+        # Verify relationships
+        cursor.execute(
+            """
+            SELECT s.name, r.target_symbol_fqn, r.relationship_type
+            FROM symbol_relationships r
+            JOIN symbols s ON r.source_symbol_id = s.id
+            """
+        )
+        db_rels = cursor.fetchall()
+        assert len(db_rels) > 0