fix: CodexLens model detection, hybrid search stability, and JSON logging

- Fix model installation detection using fastembed ONNX cache names
- Add embeddings_config table for model metadata tracking
- Fix hybrid search segfault by using single-threaded GPU mode
- Suppress INFO logs in JSON mode to prevent error display
- Add model dropdown filtering to show only installed models

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

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

ccw/src/templates/dashboard-js/components/cli-status.js

@@ -98,15 +98,17 @@ async function loadCodexLensStatus() {
     }
     window.cliToolsStatus.codexlens = {
       installed: data.ready || false,
-      version: data.version || null
+      version: data.version || null,
+      installedModels: []  // Will be populated by loadSemanticStatus
     };
 
     // Update CodexLens badge
     updateCodexLensBadge();
 
-    // If CodexLens is ready, also check semantic status
+    // If CodexLens is ready, also check semantic status and models
     if (data.ready) {
       await loadSemanticStatus();
+      await loadInstalledModels();
     }
 
     return data;
@@ -132,6 +134,37 @@ async function loadSemanticStatus() {
   }
 }
 
+/**
+ * Load installed embedding models
+ */
+async function loadInstalledModels() {
+  try {
+    const response = await fetch('/api/codexlens/models');
+    if (!response.ok) throw new Error('Failed to load models');
+    const data = await response.json();
+    
+    if (data.success && data.result && data.result.models) {
+      // Filter to only installed models
+      const installedModels = data.result.models
+        .filter(m => m.installed)
+        .map(m => m.profile);
+      
+      // Update window.cliToolsStatus
+      if (window.cliToolsStatus && window.cliToolsStatus.codexlens) {
+        window.cliToolsStatus.codexlens.installedModels = installedModels;
+        window.cliToolsStatus.codexlens.allModels = data.result.models;
+      }
+      
+      console.log('[CLI Status] Installed models:', installedModels);
+      return installedModels;
+    }
+    return [];
+  } catch (err) {
+    console.error('Failed to load installed models:', err);
+    return [];
+  }
+}
+
 // ========== Badge Update ==========
 function updateCliBadge() {
   const badge = document.getElementById('badgeCliTools');

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

@@ -349,6 +349,50 @@ function getSelectedModel() {
   return select ? select.value : 'code';
 }
 
+/**
+ * Build model select options HTML, showing only installed models
+ * @returns {string} HTML string for select options
+ */
+function buildModelSelectOptions() {
+  var installedModels = window.cliToolsStatus?.codexlens?.installedModels || [];
+  var allModels = window.cliToolsStatus?.codexlens?.allModels || [];
+  
+  // Model display configuration
+  var modelConfig = {
+    'code': { label: t('index.modelCode') || 'Code (768d)', star: true },
+    'base': { label: t('index.modelBase') || 'Base (768d)', star: false },
+    'fast': { label: t('index.modelFast') || 'Fast (384d)', star: false },
+    'minilm': { label: t('index.modelMinilm') || 'MiniLM (384d)', star: false },
+    'multilingual': { label: t('index.modelMultilingual') || 'Multilingual (1024d)', warn: true },
+    'balanced': { label: t('index.modelBalanced') || 'Balanced (1024d)', warn: true }
+  };
+  
+  // If no models installed, show placeholder
+  if (installedModels.length === 0) {
+    return '<option value="" disabled selected>' + (t('index.noModelsInstalled') || 'No models installed') + '</option>';
+  }
+  
+  // Build options for installed models only
+  var options = '';
+  var firstInstalled = null;
+  
+  // Preferred order: code, fast, minilm, base, multilingual, balanced
+  var preferredOrder = ['code', 'fast', 'minilm', 'base', 'multilingual', 'balanced'];
+  
+  preferredOrder.forEach(function(profile) {
+    if (installedModels.includes(profile) && modelConfig[profile]) {
+      var config = modelConfig[profile];
+      var style = config.warn ? ' style="color: var(--muted-foreground)"' : '';
+      var suffix = config.star ? ' ⭐' : (config.warn ? ' ⚠️' : '');
+      var selected = !firstInstalled ? ' selected' : '';
+      if (!firstInstalled) firstInstalled = profile;
+      options += '<option value="' + profile + '"' + style + selected + '>' + config.label + suffix + '</option>';
+    }
+  });
+  
+  return options;
+}
+
 // ========== Tools Section (Left Column) ==========
 function renderToolsSection() {
   var container = document.getElementById('tools-section');
@@ -404,12 +448,7 @@ function renderToolsSection() {
       (codexLensStatus.ready
         ? '<span class="tool-status-text success"><i data-lucide="check-circle" class="w-3.5 h-3.5"></i> v' + (codexLensStatus.version || 'installed') + '</span>' +
           '<select id="codexlensModelSelect" class="btn-sm bg-muted border border-border rounded text-xs" onclick="event.stopPropagation()" title="' + (t('index.selectModel') || 'Select embedding model') + '">' +
-            '<option value="code">' + (t('index.modelCode') || 'Code (768d)') + ' ⭐</option>' +
+            buildModelSelectOptions() +
-            '<option value="base">' + (t('index.modelBase') || 'Base (768d)') + '</option>' +
-            '<option value="fast">' + (t('index.modelFast') || 'Fast (384d)') + '</option>' +
-            '<option value="minilm">' + (t('index.modelMinilm') || 'MiniLM (384d)') + '</option>' +
-            '<option value="multilingual" style="color: var(--muted-foreground)">' + (t('index.modelMultilingual') || 'Multilingual (1024d)') + ' ⚠️</option>' +
-            '<option value="balanced" style="color: var(--muted-foreground)">' + (t('index.modelBalanced') || 'Balanced (1024d)') + ' ⚠️</option>' +
           '</select>' +
           '<button class="btn-sm btn-primary" onclick="event.stopPropagation(); initCodexLensIndex(\'full\', getSelectedModel())" title="' + (t('index.fullDesc') || 'FTS + Semantic search (recommended)') + '"><i data-lucide="layers" class="w-3 h-3"></i> ' + (t('index.fullIndex') || '全部索引') + '</button>' +
           '<button class="btn-sm btn-outline" onclick="event.stopPropagation(); initCodexLensIndex(\'vector\', getSelectedModel())" title="' + (t('index.vectorDesc') || 'Semantic search with embeddings') + '"><i data-lucide="sparkles" class="w-3 h-3"></i> ' + (t('index.vectorIndex') || '向量索引') + '</button>' +

codex-lens/src/codex_lens.egg-info/PKG-INFO

@@ -1,6 +1,6 @@
 Metadata-Version: 2.4
 Name: codex-lens
-Version: 0.2.0
+Version: 0.1.0
 Summary: CodexLens multi-modal code analysis platform
 Author: CodexLens contributors
 License: MIT
@@ -17,18 +17,18 @@ Requires-Dist: tree-sitter-typescript>=0.23
 Requires-Dist: pathspec>=0.11
 Provides-Extra: semantic
 Requires-Dist: numpy>=1.24; extra == "semantic"
-Requires-Dist: fastembed>=0.5; extra == "semantic"
+Requires-Dist: fastembed>=0.2; extra == "semantic"
 Requires-Dist: hnswlib>=0.8.0; extra == "semantic"
 Provides-Extra: semantic-gpu
 Requires-Dist: numpy>=1.24; extra == "semantic-gpu"
-Requires-Dist: fastembed>=0.5; extra == "semantic-gpu"
+Requires-Dist: fastembed>=0.2; extra == "semantic-gpu"
 Requires-Dist: hnswlib>=0.8.0; extra == "semantic-gpu"
-Requires-Dist: onnxruntime-gpu>=1.18.0; extra == "semantic-gpu"
+Requires-Dist: onnxruntime-gpu>=1.15.0; extra == "semantic-gpu"
 Provides-Extra: semantic-directml
 Requires-Dist: numpy>=1.24; extra == "semantic-directml"
-Requires-Dist: fastembed>=0.5; extra == "semantic-directml"
+Requires-Dist: fastembed>=0.2; extra == "semantic-directml"
 Requires-Dist: hnswlib>=0.8.0; extra == "semantic-directml"
-Requires-Dist: onnxruntime-directml>=1.18.0; extra == "semantic-directml"
+Requires-Dist: onnxruntime-directml>=1.15.0; extra == "semantic-directml"
 Provides-Extra: encoding
 Requires-Dist: chardet>=5.0; extra == "encoding"
 Provides-Extra: full

codex-lens/src/codex_lens.egg-info/requires.txt

@@ -15,17 +15,17 @@ tiktoken>=0.5.0
 
 [semantic]
 numpy>=1.24
-fastembed>=0.5
+fastembed>=0.2
 hnswlib>=0.8.0
 
 [semantic-directml]
 numpy>=1.24
-fastembed>=0.5
+fastembed>=0.2
 hnswlib>=0.8.0
-onnxruntime-directml>=1.18.0
+onnxruntime-directml>=1.15.0
 
 [semantic-gpu]
 numpy>=1.24
-fastembed>=0.5
+fastembed>=0.2
 hnswlib>=0.8.0
-onnxruntime-gpu>=1.18.0
+onnxruntime-gpu>=1.15.0

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

@@ -35,8 +35,17 @@ from .output import (
 app = typer.Typer(help="CodexLens CLI — local code indexing and search.")
 
 
-def _configure_logging(verbose: bool) -> None:
+def _configure_logging(verbose: bool, json_mode: bool = False) -> None:
-    level = logging.DEBUG if verbose else logging.INFO
+    """Configure logging level.
+
+    In JSON mode, suppress INFO logs to keep stderr clean for error parsing.
+    Only WARNING and above are shown to avoid mixing logs with JSON output.
+    """
+    if json_mode and not verbose:
+        # In JSON mode, suppress INFO logs to keep stderr clean
+        level = logging.WARNING
+    else:
+        level = logging.DEBUG if verbose else logging.INFO
     logging.basicConfig(level=level, format="%(levelname)s %(message)s")
 
 
@@ -95,7 +104,7 @@ def init(
     If semantic search dependencies are installed, automatically generates embeddings
     after indexing completes. Use --no-embeddings to skip this step.
     """
-    _configure_logging(verbose)
+    _configure_logging(verbose, json_mode)
     config = Config()
     languages = _parse_languages(language)
     base_path = path.expanduser().resolve()
@@ -314,7 +323,7 @@ def search(
       # Force hybrid mode
       codexlens search "authentication" --mode hybrid
     """
-    _configure_logging(verbose)
+    _configure_logging(verbose, json_mode)
     search_path = path.expanduser().resolve()
 
     # Validate mode
@@ -487,7 +496,7 @@ def symbol(
     verbose: bool = typer.Option(False, "--verbose", "-v", help="Enable debug logging."),
 ) -> None:
     """Look up symbols by name and optional kind."""
-    _configure_logging(verbose)
+    _configure_logging(verbose, json_mode)
     search_path = path.expanduser().resolve()
 
     registry: RegistryStore | None = None
@@ -538,7 +547,7 @@ def inspect(
     verbose: bool = typer.Option(False, "--verbose", "-v", help="Enable debug logging."),
 ) -> None:
     """Analyze a single file and display symbols."""
-    _configure_logging(verbose)
+    _configure_logging(verbose, json_mode)
     config = Config()
     factory = ParserFactory(config)
 
@@ -588,7 +597,7 @@ def status(
     verbose: bool = typer.Option(False, "--verbose", "-v", help="Enable debug logging."),
 ) -> None:
     """Show index status and configuration."""
-    _configure_logging(verbose)
+    _configure_logging(verbose, json_mode)
 
     registry: RegistryStore | None = None
     try:
@@ -648,7 +657,7 @@ def status(
             # Embedding manager not available
             pass
         except Exception as e:
-            logger.debug(f"Failed to get embeddings status: {e}")
+            logging.debug(f"Failed to get embeddings status: {e}")
 
         stats = {
             "index_root": str(index_root),
@@ -737,7 +746,7 @@ def projects(
     - show <path>: Show details for a specific project
     - remove <path>: Remove a project from the registry
     """
-    _configure_logging(verbose)
+    _configure_logging(verbose, json_mode)
 
     registry: RegistryStore | None = None
     try:
@@ -892,7 +901,7 @@ def config(
     Config keys:
     - index_dir: Directory to store indexes (default: ~/.codexlens/indexes)
     """
-    _configure_logging(verbose)
+    _configure_logging(verbose, json_mode)
 
     config_file = Path.home() / ".codexlens" / "config.json"
 
@@ -1057,7 +1066,7 @@ def migrate(
     This is a safe operation that preserves all existing data.
     Progress is shown during migration.
     """
-    _configure_logging(verbose)
+    _configure_logging(verbose, json_mode)
     base_path = path.expanduser().resolve()
 
     registry: RegistryStore | None = None
@@ -1183,7 +1192,7 @@ def clean(
     With path, removes that project's indexes.
     With --all, removes all indexes (use with caution).
     """
-    _configure_logging(verbose)
+    _configure_logging(verbose, json_mode)
 
     try:
         mapper = PathMapper()
@@ -1329,7 +1338,7 @@ def semantic_list(
     Shows files that have LLM-generated summaries and keywords.
     Results are aggregated from all index databases in the project.
     """
-    _configure_logging(verbose)
+    _configure_logging(verbose, json_mode)
     base_path = path.expanduser().resolve()
 
     registry: Optional[RegistryStore] = None
@@ -1798,7 +1807,7 @@ def embeddings_generate(
         codexlens embeddings-generate ~/.codexlens/indexes/project/_index.db  # Specific index
         codexlens embeddings-generate ~/projects/my-app --model fast --force  # Regenerate with fast model
     """
-    _configure_logging(verbose)
+    _configure_logging(verbose, json_mode)
 
     from codexlens.cli.embedding_manager import generate_embeddings, generate_embeddings_recursive
 

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

@@ -279,6 +279,21 @@ def generate_embeddings(
 
     try:
         with VectorStore(index_path) as vector_store:
+            # Check model compatibility with existing embeddings
+            if not force:
+                is_compatible, warning = vector_store.check_model_compatibility(
+                    model_profile, embedder.model_name, embedder.embedding_dim
+                )
+                if not is_compatible:
+                    return {
+                        "success": False,
+                        "error": warning,
+                    }
+
+            # Set/update model configuration for this index
+            vector_store.set_model_config(
+                model_profile, embedder.model_name, embedder.embedding_dim
+            )
             # Use bulk insert mode for efficient batch ANN index building
             # This defers ANN updates until end_bulk_insert() is called
             with vector_store.bulk_insert():

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

@@ -16,9 +16,11 @@ except ImportError:
 # Model profiles with metadata
 # Note: 768d is max recommended dimension for optimal performance/quality balance
 # 1024d models are available but not recommended due to higher resource usage
+# cache_name: The actual Hugging Face repo name used by fastembed for ONNX caching
 MODEL_PROFILES = {
     "fast": {
         "model_name": "BAAI/bge-small-en-v1.5",
+        "cache_name": "qdrant/bge-small-en-v1.5-onnx-q",  # fastembed uses ONNX version
         "dimensions": 384,
         "size_mb": 80,
         "description": "Fast, lightweight, English-optimized",
@@ -27,6 +29,7 @@ MODEL_PROFILES = {
     },
     "base": {
         "model_name": "BAAI/bge-base-en-v1.5",
+        "cache_name": "qdrant/bge-base-en-v1.5-onnx-q",  # fastembed uses ONNX version
         "dimensions": 768,
         "size_mb": 220,
         "description": "General purpose, good balance of speed and quality",
@@ -35,6 +38,7 @@ MODEL_PROFILES = {
     },
     "code": {
         "model_name": "jinaai/jina-embeddings-v2-base-code",
+        "cache_name": "jinaai/jina-embeddings-v2-base-code",  # Uses original name
         "dimensions": 768,
         "size_mb": 150,
         "description": "Code-optimized, best for programming languages",
@@ -43,6 +47,7 @@ MODEL_PROFILES = {
     },
     "minilm": {
         "model_name": "sentence-transformers/all-MiniLM-L6-v2",
+        "cache_name": "qdrant/all-MiniLM-L6-v2-onnx",  # fastembed uses ONNX version
         "dimensions": 384,
         "size_mb": 90,
         "description": "Popular lightweight model, good quality",
@@ -51,6 +56,7 @@ MODEL_PROFILES = {
     },
     "multilingual": {
         "model_name": "intfloat/multilingual-e5-large",
+        "cache_name": "qdrant/multilingual-e5-large-onnx",  # fastembed uses ONNX version
         "dimensions": 1024,
         "size_mb": 1000,
         "description": "Multilingual + code support (high resource usage)",
@@ -59,6 +65,7 @@ MODEL_PROFILES = {
     },
     "balanced": {
         "model_name": "mixedbread-ai/mxbai-embed-large-v1",
+        "cache_name": "mixedbread-ai/mxbai-embed-large-v1",  # Uses original name
         "dimensions": 1024,
         "size_mb": 600,
         "description": "High accuracy, general purpose (high resource usage)",
@@ -87,6 +94,23 @@ def get_cache_dir() -> Path:
     return cache_dir
 
 
+def _get_model_cache_path(cache_dir: Path, info: Dict) -> Path:
+    """Get the actual cache path for a model.
+
+    fastembed uses ONNX versions of models with different names than the original.
+    This function returns the correct path based on the cache_name field.
+
+    Args:
+        cache_dir: The fastembed cache directory
+        info: Model profile info dictionary
+
+    Returns:
+        Path to the model cache directory
+    """
+    cache_name = info.get("cache_name", info["model_name"])
+    return cache_dir / f"models--{cache_name.replace('/', '--')}"
+
+
 def list_models() -> Dict[str, any]:
     """List available model profiles and their installation status.
 
@@ -106,13 +130,13 @@ def list_models() -> Dict[str, any]:
     for profile, info in MODEL_PROFILES.items():
         model_name = info["model_name"]
 
-        # Check if model is cached
+        # Check if model is cached using the actual cache name
         installed = False
         cache_size_mb = 0
 
         if cache_exists:
-            # Check for model directory in cache
+            # Check for model directory in cache using correct cache_name
-            model_cache_path = cache_dir / f"models--{model_name.replace('/', '--')}"
+            model_cache_path = _get_model_cache_path(cache_dir, info)
             if model_cache_path.exists():
                 installed = True
                 # Calculate cache size
@@ -166,7 +190,8 @@ def download_model(profile: str, progress_callback: Optional[callable] = None) -
             "error": f"Unknown profile: {profile}. Available: {', '.join(MODEL_PROFILES.keys())}",
         }
 
-    model_name = MODEL_PROFILES[profile]["model_name"]
+    info = MODEL_PROFILES[profile]
+    model_name = info["model_name"]
 
     try:
         # Download model by instantiating TextEmbedding
@@ -179,9 +204,9 @@ def download_model(profile: str, progress_callback: Optional[callable] = None) -
         if progress_callback:
             progress_callback(f"Model {model_name} downloaded successfully")
 
-        # Get cache info
+        # Get cache info using correct cache_name
         cache_dir = get_cache_dir()
-        model_cache_path = cache_dir / f"models--{model_name.replace('/', '--')}"
+        model_cache_path = _get_model_cache_path(cache_dir, info)
 
         cache_size = 0
         if model_cache_path.exists():
@@ -224,9 +249,10 @@ def delete_model(profile: str) -> Dict[str, any]:
             "error": f"Unknown profile: {profile}. Available: {', '.join(MODEL_PROFILES.keys())}",
         }
 
-    model_name = MODEL_PROFILES[profile]["model_name"]
+    info = MODEL_PROFILES[profile]
+    model_name = info["model_name"]
     cache_dir = get_cache_dir()
-    model_cache_path = cache_dir / f"models--{model_name.replace('/', '--')}"
+    model_cache_path = _get_model_cache_path(cache_dir, info)
 
     if not model_cache_path.exists():
         return {
@@ -281,9 +307,9 @@ def get_model_info(profile: str) -> Dict[str, any]:
     info = MODEL_PROFILES[profile]
     model_name = info["model_name"]
 
-    # Check installation status
+    # Check installation status using correct cache_name
     cache_dir = get_cache_dir()
-    model_cache_path = cache_dir / f"models--{model_name.replace('/', '--')}"
+    model_cache_path = _get_model_cache_path(cache_dir, info)
     installed = model_cache_path.exists()
 
     cache_size_mb = None

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

@@ -396,7 +396,20 @@ class ChainSearchEngine:
         all_results = []
         stats = SearchStats()
 
-        executor = self._get_executor(options.max_workers)
+        # Force single-threaded execution for vector/hybrid search to avoid GPU crashes
+        # DirectML/ONNX have threading issues when multiple threads access GPU resources
+        effective_workers = options.max_workers
+        if options.enable_vector or options.hybrid_mode:
+            effective_workers = 1
+            self.logger.debug("Using single-threaded mode for vector search (GPU safety)")
+            # Pre-load embedder to avoid initialization overhead per-search
+            try:
+                from codexlens.semantic.embedder import get_embedder
+                get_embedder(profile="code", use_gpu=True)
+            except Exception:
+                pass  # Ignore pre-load failures
+
+        executor = self._get_executor(effective_workers)
         # Submit all search tasks
         future_to_path = {
             executor.submit(

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

@@ -274,19 +274,32 @@ class HybridSearchEngine:
                 )
                 return []
 
-            # Auto-detect embedding dimension and select appropriate profile
+            # Get stored model configuration (preferred) or auto-detect from dimension
-            detected_dim = vector_store.dimension
+            model_config = vector_store.get_model_config()
-            if detected_dim is None:
+            if model_config:
-                self.logger.info("Vector store dimension unknown, using default profile")
+                profile = model_config["model_profile"]
-                profile = "code"  # Default fallback
+                self.logger.debug(
-            elif detected_dim == 384:
+                    "Using stored model config: %s (%s, %dd)",
-                profile = "fast"
+                    profile, model_config["model_name"], model_config["embedding_dim"]
-            elif detected_dim == 768:
+                )
-                profile = "code"
-            elif detected_dim == 1024:
-                profile = "multilingual"  # or balanced, both are 1024
             else:
-                profile = "code"  # Default fallback
+                # Fallback: auto-detect from embedding dimension
+                detected_dim = vector_store.dimension
+                if detected_dim is None:
+                    self.logger.info("Vector store dimension unknown, using default profile")
+                    profile = "code"  # Default fallback
+                elif detected_dim == 384:
+                    profile = "fast"
+                elif detected_dim == 768:
+                    profile = "code"
+                elif detected_dim == 1024:
+                    profile = "multilingual"  # or balanced, both are 1024
+                else:
+                    profile = "code"  # Default fallback
+                self.logger.debug(
+                    "No stored model config, auto-detected profile '%s' from dimension %s",
+                    profile, detected_dim
+                )
 
             # Use cached embedder (singleton) for performance
             embedder = get_embedder(profile=profile)

codex-lens/src/codexlens/semantic/vector_store.py

@@ -116,6 +116,17 @@ class VectorStore:
                 CREATE INDEX IF NOT EXISTS idx_chunks_file
                 ON semantic_chunks(file_path)
             """)
+            # Model configuration table - tracks which model generated the embeddings
+            conn.execute("""
+                CREATE TABLE IF NOT EXISTS embeddings_config (
+                    id INTEGER PRIMARY KEY CHECK (id = 1),
+                    model_profile TEXT NOT NULL,
+                    model_name TEXT NOT NULL,
+                    embedding_dim INTEGER NOT NULL,
+                    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+                    updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
+                )
+            """)
             conn.commit()
 
     def _init_ann_index(self) -> None:
@@ -932,6 +943,92 @@ class VectorStore:
             return self._ann_index.count()
         return 0
 
+    def get_model_config(self) -> Optional[Dict[str, Any]]:
+        """Get the model configuration used for embeddings in this store.
+
+        Returns:
+            Dictionary with model_profile, model_name, embedding_dim, or None if not set.
+        """
+        with sqlite3.connect(self.db_path) as conn:
+            row = conn.execute(
+                "SELECT model_profile, model_name, embedding_dim, created_at, updated_at "
+                "FROM embeddings_config WHERE id = 1"
+            ).fetchone()
+            if row:
+                return {
+                    "model_profile": row[0],
+                    "model_name": row[1],
+                    "embedding_dim": row[2],
+                    "created_at": row[3],
+                    "updated_at": row[4],
+                }
+        return None
+
+    def set_model_config(
+        self, model_profile: str, model_name: str, embedding_dim: int
+    ) -> None:
+        """Set the model configuration for embeddings in this store.
+
+        This should be called when generating new embeddings. If a different
+        model was previously used, this will update the configuration.
+
+        Args:
+            model_profile: Model profile name (fast, code, minilm, etc.)
+            model_name: Full model name (e.g., jinaai/jina-embeddings-v2-base-code)
+            embedding_dim: Embedding dimension (e.g., 768)
+        """
+        with sqlite3.connect(self.db_path) as conn:
+            conn.execute(
+                """
+                INSERT INTO embeddings_config (id, model_profile, model_name, embedding_dim)
+                VALUES (1, ?, ?, ?)
+                ON CONFLICT(id) DO UPDATE SET
+                    model_profile = excluded.model_profile,
+                    model_name = excluded.model_name,
+                    embedding_dim = excluded.embedding_dim,
+                    updated_at = CURRENT_TIMESTAMP
+                """,
+                (model_profile, model_name, embedding_dim)
+            )
+            conn.commit()
+
+    def check_model_compatibility(
+        self, model_profile: str, model_name: str, embedding_dim: int
+    ) -> Tuple[bool, Optional[str]]:
+        """Check if the given model is compatible with existing embeddings.
+
+        Args:
+            model_profile: Model profile to check
+            model_name: Model name to check
+            embedding_dim: Embedding dimension to check
+
+        Returns:
+            Tuple of (is_compatible, warning_message).
+            is_compatible is True if no existing config or configs match.
+            warning_message is a user-friendly message if incompatible.
+        """
+        existing = self.get_model_config()
+        if existing is None:
+            return True, None
+
+        # Check dimension first (most critical)
+        if existing["embedding_dim"] != embedding_dim:
+            return False, (
+                f"Dimension mismatch: existing embeddings use {existing['embedding_dim']}d "
+                f"({existing['model_profile']}), but requested model uses {embedding_dim}d "
+                f"({model_profile}). Use --force to regenerate all embeddings."
+            )
+
+        # Check model (different models with same dimension may have different semantic spaces)
+        if existing["model_profile"] != model_profile:
+            return False, (
+                f"Model mismatch: existing embeddings use '{existing['model_profile']}' "
+                f"({existing['model_name']}), but requested '{model_profile}' "
+                f"({model_name}). Use --force to regenerate all embeddings."
+            )
+
+        return True, None
+
     def close(self) -> None:
         """Close the vector store and release resources.
 

package.json

@@ -1,6 +1,6 @@
 {
   "name": "claude-code-workflow",
-  "version": "6.2.6",
+  "version": "6.2.7",
   "description": "JSON-driven multi-agent development framework with intelligent CLI orchestration (Gemini/Qwen/Codex), context-first architecture, and automated workflow execution",
   "type": "module",
   "main": "ccw/src/index.js",