diff --git a/scripts/validate_architecture.py b/scripts/validate_architecture.py
index 956251be..d85b8945 100755
--- a/scripts/validate_architecture.py
+++ b/scripts/validate_architecture.py
@@ -12,10 +12,21 @@ This script checks that the codebase follows key architectural decisions:
 - API endpoint patterns
 
 Usage:
-    python scripts/validate_architecture.py              # Check all files
-    python scripts/validate_architecture.py --fix        # Auto-fix where possible
-    python scripts/validate_architecture.py --verbose    # Detailed output
-    python scripts/validate_architecture.py app/api/     # Check specific directory
+    python scripts/validate_architecture.py                           # Check all files in current directory
+    python scripts/validate_architecture.py -d app/api/               # Check specific directory
+    python scripts/validate_architecture.py -f app/api/v1/vendors.py  # Check single file
+    python scripts/validate_architecture.py -o company                # Check all company-related files
+    python scripts/validate_architecture.py -o vendor --verbose       # Check vendor files with details
+    python scripts/validate_architecture.py --json                    # JSON output
+
+Options:
+    -f, --file PATH       Validate a single file (.py, .js, or .html)
+    -d, --folder PATH     Validate all files in a directory (recursive)
+    -o, --object NAME     Validate all files related to an entity (e.g., company, vendor, order)
+    -c, --config PATH     Path to architecture rules config
+    -v, --verbose         Show detailed output including context
+    --errors-only         Only show errors, suppress warnings
+    --json                Output results as JSON
 """
 
 import argparse
@@ -52,6 +63,35 @@ class Violation:
     suggestion: str = ""
 
 
+@dataclass
+class FileResult:
+    """Results for a single file validation"""
+
+    file_path: Path
+    errors: int = 0
+    warnings: int = 0
+
+    @property
+    def passed(self) -> bool:
+        return self.errors == 0
+
+    @property
+    def status(self) -> str:
+        if self.errors > 0:
+            return "FAILED"
+        elif self.warnings > 0:
+            return "PASSED*"
+        return "PASSED"
+
+    @property
+    def status_icon(self) -> str:
+        if self.errors > 0:
+            return "❌"
+        elif self.warnings > 0:
+            return "⚠️"
+        return "✅"
+
+
 @dataclass
 class ValidationResult:
     """Results of architecture validation"""
@@ -59,6 +99,7 @@ class ValidationResult:
     violations: list[Violation] = field(default_factory=list)
     files_checked: int = 0
     rules_applied: int = 0
+    file_results: list[FileResult] = field(default_factory=list)
 
     def has_errors(self) -> bool:
         """Check if there are any error-level violations"""
@@ -93,7 +134,7 @@ class ArchitectureValidator:
         return config
 
     def validate_all(self, target_path: Path = None) -> ValidationResult:
-        """Validate all files or specific path"""
+        """Validate all files in a directory"""
         print("\n🔍 Starting architecture validation...\n")
 
         target = target_path or self.project_root
@@ -118,6 +159,245 @@ class ArchitectureValidator:
 
         return self.result
 
+    def validate_file(
+        self, file_path: Path, quiet: bool = False
+    ) -> ValidationResult:
+        """Validate a single file"""
+        if not file_path.exists():
+            if not quiet:
+                print(f"❌ File not found: {file_path}")
+            return self.result
+
+        if not file_path.is_file():
+            if not quiet:
+                print(f"❌ Not a file: {file_path}")
+            return self.result
+
+        if not quiet:
+            print(f"\n🔍 Validating single file: {file_path}\n")
+
+        # Resolve file path to absolute
+        file_path = file_path.resolve()
+        file_path_str = str(file_path)
+
+        if self._should_ignore_file(file_path):
+            if not quiet:
+                print("⏭️  File is in ignore list, skipping")
+            return self.result
+
+        self.result.files_checked += 1
+
+        # Track violations before this file
+        violations_before = len(self.result.violations)
+
+        content = file_path.read_text()
+        lines = content.split("\n")
+
+        # Determine file type and run appropriate validators
+        if file_path.suffix == ".py":
+            self._validate_python_file(file_path, content, lines, file_path_str)
+        elif file_path.suffix == ".js":
+            self._validate_js_file(file_path, content, lines)
+        elif file_path.suffix == ".html":
+            self._validate_html_file(file_path, content, lines)
+        else:
+            if not quiet:
+                print(f"⚠️  Unsupported file type: {file_path.suffix}")
+
+        # Calculate violations for this file
+        file_violations = self.result.violations[violations_before:]
+        errors = sum(1 for v in file_violations if v.severity == Severity.ERROR)
+        warnings = sum(1 for v in file_violations if v.severity == Severity.WARNING)
+
+        # Track file result
+        self.result.file_results.append(
+            FileResult(file_path=file_path, errors=errors, warnings=warnings)
+        )
+
+        return self.result
+
+    def validate_object(self, object_name: str) -> ValidationResult:
+        """Validate all files related to an entity (e.g., company, vendor, order)"""
+        print(f"\n🔍 Searching for '{object_name}'-related files...\n")
+
+        # Generate name variants (singular/plural forms)
+        name = object_name.lower()
+        variants = {name}
+
+        # Handle common plural patterns
+        if name.endswith("ies"):
+            # companies -> company
+            variants.add(name[:-3] + "y")
+        elif name.endswith("s"):
+            # vendors -> vendor
+            variants.add(name[:-1])
+        else:
+            # company -> companies, vendor -> vendors
+            if name.endswith("y"):
+                variants.add(name[:-1] + "ies")
+            variants.add(name + "s")
+
+        # Search patterns for different file types
+        patterns = []
+        for variant in variants:
+            patterns.extend([
+                f"app/api/**/*{variant}*.py",
+                f"app/services/*{variant}*.py",
+                f"app/exceptions/*{variant}*.py",
+                f"models/database/*{variant}*.py",
+                f"models/schema/*{variant}*.py",
+                f"static/admin/js/*{variant}*.js",
+                f"app/templates/admin/*{variant}*.html",
+            ])
+
+        # Find all matching files
+        found_files: set[Path] = set()
+        for pattern in patterns:
+            matches = list(self.project_root.glob(pattern))
+            for match in matches:
+                if match.is_file() and not self._should_ignore_file(match):
+                    found_files.add(match)
+
+        if not found_files:
+            print(f"❌ No files found matching '{object_name}'")
+            return self.result
+
+        # Sort files by type for better readability
+        sorted_files = sorted(found_files, key=lambda p: (p.suffix, str(p)))
+
+        print(f"📁 Found {len(sorted_files)} files:\n")
+        for f in sorted_files:
+            rel_path = f.relative_to(self.project_root)
+            print(f"   • {rel_path}")
+
+        print("\n" + "-" * 60 + "\n")
+
+        # Validate each file
+        for file_path in sorted_files:
+            rel_path = file_path.relative_to(self.project_root)
+            print(f"📄 {rel_path}")
+            self.validate_file(file_path, quiet=True)
+
+        return self.result
+
+    def _validate_python_file(
+        self, file_path: Path, content: str, lines: list[str], file_path_str: str
+    ):
+        """Validate a single Python file based on its location"""
+        # API endpoints
+        if "/app/api/" in file_path_str or "\\app\\api\\" in file_path_str:
+            print("📡 Validating as API endpoint...")
+            self._check_pydantic_usage(file_path, content, lines)
+            self._check_no_business_logic_in_endpoints(file_path, content, lines)
+            self._check_endpoint_exception_handling(file_path, content, lines)
+            self._check_endpoint_authentication(file_path, content, lines)
+
+        # Service layer
+        elif "/app/services/" in file_path_str or "\\app\\services\\" in file_path_str:
+            print("🔧 Validating as service layer...")
+            self._check_no_http_exception_in_services(file_path, content, lines)
+            self._check_service_exceptions(file_path, content, lines)
+            self._check_db_session_parameter(file_path, content, lines)
+
+        # Models
+        elif "/app/models/" in file_path_str or "\\app\\models\\" in file_path_str:
+            print("📦 Validating as model...")
+            for i, line in enumerate(lines, 1):
+                if re.search(r"class.*\(Base.*,.*BaseModel.*\)", line):
+                    self._add_violation(
+                        rule_id="MDL-002",
+                        rule_name="Separate SQLAlchemy and Pydantic models",
+                        severity=Severity.ERROR,
+                        file_path=file_path,
+                        line_number=i,
+                        message="Model mixes SQLAlchemy Base and Pydantic BaseModel",
+                        context=line.strip(),
+                        suggestion="Keep SQLAlchemy models and Pydantic models separate",
+                    )
+
+        # Generic Python file - check exception handling
+        print("⚠️  Validating exception handling...")
+        for i, line in enumerate(lines, 1):
+            if re.match(r"\s*except\s*:", line):
+                self._add_violation(
+                    rule_id="EXC-002",
+                    rule_name="No bare except clauses",
+                    severity=Severity.ERROR,
+                    file_path=file_path,
+                    line_number=i,
+                    message="Bare except clause catches all exceptions including system exits",
+                    context=line.strip(),
+                    suggestion="Specify exception type: except ValueError: or except Exception:",
+                )
+
+    def _validate_js_file(self, file_path: Path, content: str, lines: list[str]):
+        """Validate a single JavaScript file"""
+        print("🟨 Validating JavaScript...")
+
+        # JS-001: Check for window.apiClient
+        for i, line in enumerate(lines, 1):
+            if "window.apiClient" in line:
+                before_occurrence = line[: line.find("window.apiClient")]
+                if "//" not in before_occurrence:
+                    self._add_violation(
+                        rule_id="JS-001",
+                        rule_name="Use apiClient directly",
+                        severity=Severity.WARNING,
+                        file_path=file_path,
+                        line_number=i,
+                        message="Use apiClient directly instead of window.apiClient",
+                        context=line.strip(),
+                        suggestion="Replace window.apiClient with apiClient",
+                    )
+
+        # JS-002: Check for console usage
+        for i, line in enumerate(lines, 1):
+            if re.search(r"console\.(log|warn|error)", line):
+                if "//" in line or "✅" in line or "eslint-disable" in line:
+                    continue
+                self._add_violation(
+                    rule_id="JS-002",
+                    rule_name="Use centralized logger",
+                    severity=Severity.WARNING,
+                    file_path=file_path,
+                    line_number=i,
+                    message="Use centralized logger instead of console",
+                    context=line.strip()[:80],
+                    suggestion="Use window.LogConfig.createLogger('moduleName')",
+                )
+
+    def _validate_html_file(self, file_path: Path, content: str, lines: list[str]):
+        """Validate a single HTML template file"""
+        print("📄 Validating template...")
+
+        # Skip base template and partials
+        if "base.html" in file_path.name or "partials" in str(file_path):
+            print("⏭️  Skipping base/partial template")
+            return
+
+        # Only check admin templates
+        file_path_str = str(file_path)
+        if "/admin/" not in file_path_str and "\\admin\\" not in file_path_str:
+            print("⏭️  Not an admin template, skipping extends check")
+            return
+
+        # TPL-001: Check for extends
+        has_extends = any(
+            "{% extends" in line and "admin/base.html" in line for line in lines
+        )
+
+        if not has_extends:
+            self._add_violation(
+                rule_id="TPL-001",
+                rule_name="Templates must extend base",
+                severity=Severity.ERROR,
+                file_path=file_path,
+                line_number=1,
+                message="Admin template does not extend admin/base.html",
+                context=file_path.name,
+                suggestion="Add {% extends 'admin/base.html' %} at the top",
+            )
+
     def _validate_api_endpoints(self, target_path: Path):
         """Validate API endpoint rules (API-001, API-002, API-003, API-004)"""
         print("📡 Validating API endpoints...")
@@ -215,53 +495,40 @@ class ArchitectureValidator:
     def _check_endpoint_exception_handling(
         self, file_path: Path, content: str, lines: list[str]
     ):
-        """API-003: Check proper exception handling in endpoints"""
+        """API-003: Check that endpoints do NOT raise HTTPException directly.
+
+        The architecture uses a global exception handler that catches domain
+        exceptions (WizamartException subclasses) and converts them to HTTP
+        responses. Endpoints should let exceptions bubble up, not catch and
+        convert them manually.
+        """
         rule = self._get_rule("API-003")
         if not rule:
             return
 
-        # Parse file to check for try/except in route handlers
-        try:
-            tree = ast.parse(content)
-        except SyntaxError:
+        # Skip exception handler file - it's allowed to use HTTPException
+        if "exceptions/handler.py" in str(file_path):
             return
 
-        for node in ast.walk(tree):
-            if isinstance(node, ast.FunctionDef):
-                # Check if it's a route handler
-                has_router_decorator = any(
-                    isinstance(d, ast.Call)
-                    and isinstance(d.func, ast.Attribute)
-                    and getattr(d.func.value, "id", None) == "router"
-                    for d in node.decorator_list
+        for i, line in enumerate(lines, 1):
+            # Check for raise HTTPException
+            if "raise HTTPException" in line:
+                # Skip if it's a comment
+                stripped = line.strip()
+                if stripped.startswith("#"):
+                    continue
+
+                self._add_violation(
+                    rule_id="API-003",
+                    rule_name=rule["name"],
+                    severity=Severity.ERROR,
+                    file_path=file_path,
+                    line_number=i,
+                    message="Endpoint raises HTTPException directly",
+                    context=line.strip()[:80],
+                    suggestion="Use domain exceptions (e.g., VendorNotFoundException) and let global handler convert",
                 )
 
-                if has_router_decorator:
-                    # Check if function body has try/except
-                    has_try_except = any(
-                        isinstance(child, ast.Try) for child in ast.walk(node)
-                    )
-
-                    # Check if function calls service methods
-                    has_service_call = any(
-                        isinstance(child, ast.Call)
-                        and isinstance(child.func, ast.Attribute)
-                        and "service" in getattr(child.func.value, "id", "").lower()
-                        for child in ast.walk(node)
-                    )
-
-                    if has_service_call and not has_try_except:
-                        self._add_violation(
-                            rule_id="API-003",
-                            rule_name=rule["name"],
-                            severity=Severity.WARNING,
-                            file_path=file_path,
-                            line_number=node.lineno,
-                            message=f"Endpoint '{node.name}' calls service but lacks exception handling",
-                            context=f"def {node.name}(...)",
-                            suggestion="Wrap service calls in try/except and convert to HTTPException",
-                        )
-
     def _check_endpoint_authentication(
         self, file_path: Path, content: str, lines: list[str]
     ):
@@ -603,6 +870,10 @@ class ArchitectureValidator:
         print(f"Files checked: {self.result.files_checked}")
         print(f"Total violations: {len(self.result.violations)}\n")
 
+        # Print file summary table if we have file results
+        if self.result.file_results:
+            self._print_summary_table()
+
         # Group by severity
         errors = [v for v in self.result.violations if v.severity == Severity.ERROR]
         warnings = [v for v in self.result.violations if v.severity == Severity.WARNING]
@@ -633,6 +904,58 @@ class ArchitectureValidator:
         print("=" * 80)
         return 0
 
+    def _print_summary_table(self):
+        """Print a summary table of file results"""
+        print("📋 FILE SUMMARY:")
+        print("-" * 80)
+
+        # Calculate column widths
+        max_path_len = max(
+            len(
+                str(
+                    fr.file_path.relative_to(self.project_root)
+                    if self.project_root in fr.file_path.parents
+                    else fr.file_path
+                )
+            )
+            for fr in self.result.file_results
+        )
+        max_path_len = min(max_path_len, 55)  # Cap at 55 chars
+
+        # Print header
+        print(f"  {'File':<{max_path_len}}  {'Status':<8}  {'Errors':<7}  {'Warnings':<8}")
+        print(f"  {'-' * max_path_len}  {'-' * 8}  {'-' * 7}  {'-' * 8}")
+
+        # Print each file
+        for fr in self.result.file_results:
+            rel_path = (
+                fr.file_path.relative_to(self.project_root)
+                if self.project_root in fr.file_path.parents
+                else fr.file_path
+            )
+            path_str = str(rel_path)
+            if len(path_str) > max_path_len:
+                path_str = "..." + path_str[-(max_path_len - 3) :]
+
+            print(
+                f"  {path_str:<{max_path_len}}  "
+                f"{fr.status_icon} {fr.status:<5}  "
+                f"{fr.errors:<7}  "
+                f"{fr.warnings:<8}"
+            )
+
+        print("-" * 80)
+
+        # Print totals
+        total_errors = sum(fr.errors for fr in self.result.file_results)
+        total_warnings = sum(fr.warnings for fr in self.result.file_results)
+        passed = sum(1 for fr in self.result.file_results if fr.passed)
+        failed = len(self.result.file_results) - passed
+
+        print(f"\n  Total: {len(self.result.file_results)} files | "
+              f"✅ {passed} passed | ❌ {failed} failed | "
+              f"{total_errors} errors | {total_warnings} warnings\n")
+
     def print_json(self) -> int:
         """Print validation results as JSON"""
         import json
@@ -700,12 +1023,31 @@ def main():
         epilog=__doc__,
     )
 
-    parser.add_argument(
-        "path",
-        nargs="?",
+    # Target options (mutually exclusive)
+    target_group = parser.add_mutually_exclusive_group()
+
+    target_group.add_argument(
+        "-f",
+        "--file",
         type=Path,
-        default=Path.cwd(),
-        help="Path to validate (default: current directory)",
+        metavar="PATH",
+        help="Validate a single file (.py, .js, or .html)",
+    )
+
+    target_group.add_argument(
+        "-d",
+        "--folder",
+        type=Path,
+        metavar="PATH",
+        help="Validate all files in a directory (recursive)",
+    )
+
+    target_group.add_argument(
+        "-o",
+        "--object",
+        type=str,
+        metavar="NAME",
+        help="Validate all files related to an entity (e.g., company, vendor, order)",
     )
 
     parser.add_argument(
@@ -738,8 +1080,22 @@ def main():
     # Create validator
     validator = ArchitectureValidator(args.config, verbose=args.verbose)
 
-    # Run validation
-    result = validator.validate_all(args.path)
+    # Determine validation mode
+    if args.file:
+        # Validate single file
+        result = validator.validate_file(args.file)
+    elif args.folder:
+        # Validate directory
+        if not args.folder.is_dir():
+            print(f"❌ Not a directory: {args.folder}")
+            sys.exit(1)
+        result = validator.validate_all(args.folder)
+    elif args.object:
+        # Validate all files related to an entity
+        result = validator.validate_object(args.object)
+    else:
+        # Default: validate current directory
+        result = validator.validate_all(Path.cwd())
 
     # Output results
     if args.json: