diff --git a/test/infinicore/framework/__init__.py b/test/infinicore/framework/__init__.py
index 79c71b1c5..6d0936775 100644
--- a/test/infinicore/framework/__init__.py
+++ b/test/infinicore/framework/__init__.py
@@ -36,6 +36,7 @@
     "TestConfig",
     "TestResult",
     "TestRunner",
+    "TestCaseManager",
     # Core functions
     "compare_results",
     "convert_infinicore_to_torch",
diff --git a/test/infinicore/framework/runner.py b/test/infinicore/framework/runner.py
index c0de4a7f9..b7550a8a1 100644
--- a/test/infinicore/framework/runner.py
+++ b/test/infinicore/framework/runner.py
@@ -9,13 +9,13 @@
 class GenericTestRunner:
     """Generic test runner that handles the common execution flow"""
 
-    def __init__(self, operator_test_class):
+    def __init__(self, operator_test_class, args = None):
         """
         Args:
             operator_test_class: A class that implements BaseOperatorTest interface
         """
         self.operator_test = operator_test_class()
-        self.args = get_args()
+        self.args = args or get_args()
 
     def run(self):
         """Execute the complete test suite
diff --git a/test/infinicore/framework/testcase_manager.py b/test/infinicore/framework/testcase_manager.py
new file mode 100644
index 000000000..509688872
--- /dev/null
+++ b/test/infinicore/framework/testcase_manager.py
@@ -0,0 +1,365 @@
+import sys
+import os
+import json
+import importlib
+import argparse
+from typing import Any, Optional, Tuple, Union, Dict, List
+from dataclasses import is_dataclass
+
+import infinicore
+import torch
+
+# Path adaptation
+current_dir = os.path.dirname(os.path.abspath(__file__))
+parent_dir = os.path.dirname(current_dir)
+if parent_dir not in sys.path:
+    sys.path.insert(0, parent_dir)
+
+from framework.base import BaseOperatorTest, TestCase, TensorSpec
+from framework.config import get_args, get_supported_hardware_platforms
+from framework.runner import GenericTestRunner
+from framework.devices import InfiniDeviceEnum
+
+
+class TestCaseManager:
+    """
+    Test Case Manager (Strict Schema Version)
+    """
+
+    def __init__(self):
+        self.supported_hw_flags = [
+            item[0].lstrip("-") for item in get_supported_hardware_platforms()
+        ]
+
+    def run(
+        self,
+        json_file_path: Optional[str] = None,
+        config: Union[str, Dict[str, Any], argparse.Namespace, None] = None,
+        save_path: str = None,
+    ) -> Any:
+        print(f"🚀 Test Case Manager: Start processing...")
+        overrides = self._normalize_override_config(config)
+
+        # 1. Unified Configuration Loading
+        if json_file_path and os.path.exists(json_file_path):
+            print(f"📄 Source: Loading {json_file_path}")
+            test_configs = self._load(json_file_path, overrides)
+        else:
+            test_configs = self._load_default_case(overrides)
+
+        total_results = []
+
+        # 2. Execute & Collect Results
+        for idx, cfg in enumerate(test_configs):
+            op_name = cfg["op_name"]
+            n_cases = len(cfg["test_cases"])
+            print(f"\n🔹 Config {idx + 1}/{len(test_configs)}: {op_name} ({n_cases} cases)")
+
+            # Execute
+            results = self._execute_tests(
+                op_name, cfg["test_cases"], cfg["args"], cfg["op_funcs"]
+            )
+
+            # Report
+            entry = self._prepare_report_entry(cfg, results)
+            total_results.append(entry)
+
+        # 3. Save
+        if save_path:
+            self._save_all_results(save_path, total_results)
+
+        return total_results
+
+    def _create_exec_config(self, raw_data: Dict, overrides: Dict) -> Optional[Dict]:
+        """
+        ✅ Core Simplification: Unified logic to build a config object from raw dict.
+        """
+        op_name = raw_data.get("operator")
+        if not op_name:
+            return None
+
+        # 1. Resolve Paths
+        t_op = raw_data.get("torch_op") or self._discover_op_path(
+            op_name, ["torch", "torch.nn.functional", "torch.special", "torch.fft"]
+        )
+        i_op = raw_data.get("infinicore_op") or self._discover_op_path(
+            op_name, ["infinicore", "infinicore.nn.functional"]
+        )
+
+        # 2. Args & Device
+        args = self._get_default_args()
+        self._merge_args(args, raw_data.get("args", {}))
+        self._merge_args(args, overrides)
+
+        dev_str = (
+            overrides.get("device")
+            if overrides and "device" in overrides
+            else raw_data.get("device", "cpu")
+        )
+        self._set_device_flags(args, dev_str)
+
+        # 3. Build & Return
+        return {
+            "op_name": op_name,
+            "test_cases": self._build_test_cases(raw_data, op_name),
+            "args": args,
+            "op_funcs": {
+                "torch": self._load_function(t_op),
+                "infinicore": self._load_function(i_op),
+            },
+            "op_paths": {"torch": t_op, "infinicore": i_op},
+            "target_device": dev_str,
+        }
+
+    def _load(self, json_file_path: str, overrides: Dict) -> List[Dict]:
+        try:
+            with open(json_file_path, "r", encoding="utf-8") as f:
+                data = json.load(f)
+        except json.JSONDecodeError:
+            raise ValueError(f"Invalid JSON: {json_file_path}")
+
+        data_list = data if isinstance(data, list) else [data]
+        # Use generator to filter None configs
+        return [
+            cfg
+            for d in data_list
+            if (cfg := self._create_exec_config(d, overrides)) is not None
+        ]
+
+    def _load_default_case(self, overrides: Dict) -> List[Dict]:
+        # Construct raw dict and pass to unified creator
+        raw_data = {
+            "operator": "add",
+            "description": "Default Add",
+            "testcases": [
+                {
+                    "inputs": [{"shape": [13, 4, 4]}, {"shape": [13, 4, 4]}],
+                    "output_spec": {"shape": [13, 4, 4]},
+                }
+            ],
+        }
+        return [self._create_exec_config(raw_data, overrides)]
+
+    def _build_test_cases(self, data: Dict, op_name: str) -> List[TestCase]:
+        cases_data = data.get("testcases")
+        if not cases_data or not isinstance(cases_data, list):
+            raise ValueError(f"❌ Config for '{op_name}' missing 'testcases' list.")
+
+        base_desc = data.get("description", f"Auto-test {op_name}")
+
+        test_cases_list = []
+        for idx, sub in enumerate(cases_data):
+            # Compact list/dict comprehensions
+            inputs = [
+                self._parse_spec(inp, f"in_{i}")
+                for i, inp in enumerate(sub.get("inputs", []))
+            ]
+            
+            kwargs = {
+                k: (
+                    self._parse_spec(v, k)
+                    if isinstance(v, dict) and "shape" in v
+                    else v
+                )
+                for k, v in sub.get("kwargs", {}).items()
+            }
+
+            out_spec = (
+                self._parse_spec(sub["output_spec"], "out")
+                if "output_spec" in sub
+                else None
+            )
+            
+            out_specs = (
+                [self._parse_spec(s, f"out_{i}") for i, s in enumerate(sub["output_specs"])]
+                if "output_specs" in sub
+                else None
+            )
+
+            tol = sub.get("tolerance", {"atol": 1e-3, "rtol": 1e-3})
+            cmp = sub.get("comparison_target", None)
+
+            tc = TestCase(
+                inputs=inputs,
+                kwargs=kwargs,
+                output_spec=out_spec,
+                output_specs=out_specs,
+                comparison_target=cmp,
+                tolerance=tol,
+                description=f"{base_desc} - {sub.get('description', f'Case_{idx}')}",
+                output_count=len(out_specs) if out_specs else sub.get("output_count", 1),
+            )
+            test_cases_list.append(tc)
+
+        return test_cases_list
+
+    def _execute_tests(self, op_name, test_cases, args, op_funcs):
+        class DynamicOpTest(BaseOperatorTest):
+            def __init__(self):
+                super().__init__(op_name)
+
+            def get_test_cases(self):
+                return test_cases
+
+            def torch_operator(self, *a, **k):
+                return op_funcs["torch"](*a, **k)
+
+            def infinicore_operator(self, *a, **k):
+                return op_funcs["infinicore"](*a, **k)
+
+        runner = GenericTestRunner(DynamicOpTest, args)
+        _, internal_runner = runner.run()
+        return getattr(internal_runner, "test_results", [])
+
+    def _prepare_report_entry(self, cfg, results_list):
+        # Map results by index
+        res_map = (
+            {i: r for i, r in enumerate(results_list)}
+            if isinstance(results_list, list)
+            else {0: results_list}
+        )
+
+        cases, results = [], []
+        for idx, tc in enumerate(cfg["test_cases"]):
+            # 1. Static Info
+            cases.append({
+                "description": tc.description,
+                "inputs": [self._spec_to_dict(i) for i in tc.inputs],
+                "kwargs": {
+                    k: (self._spec_to_dict(v) if isinstance(v, TensorSpec) else v)
+                    for k, v in tc.kwargs.items()
+                },
+                "comparison_target": tc.comparison_target,
+                "tolerance": tc.tolerance,
+                **({"output_spec": self._spec_to_dict(tc.output_spec)} if tc.output_spec else {}),
+                **({"output_specs": [self._spec_to_dict(s) for s in tc.output_specs]} if tc.output_specs else {}),
+                **({"output_count": tc.output_count} if tc.output_count > 1 and not tc.output_specs else {})
+            })
+
+            # 2. Dynamic Result
+            res = res_map.get(idx)
+            results.append(
+                self._fmt_result(res) if res else {"status": {"success": False, "error": "No result"}}
+            )
+
+        # Global Args
+        g_args = {
+            k: getattr(cfg["args"], k)
+            for k in ["bench", "num_prerun", "num_iterations", "verbose", "debug"]
+            if hasattr(cfg["args"], k)
+        }
+
+        return {
+            "operator": cfg["op_name"],
+            "device": cfg["target_device"],
+            "description": f"Test Report for {cfg['op_name']}",
+            "torch_op": cfg["op_paths"]["torch"],
+            "infinicore_op": cfg["op_paths"]["infinicore"],
+            "args": g_args,
+            "testcases": cases,
+            "execution_results": results,
+        }
+
+    def _save_all_results(self, save_path, total_results):
+        print(f"💾 Saving to: {save_path}")
+        try:
+            with open(save_path, "w", encoding="utf-8") as f:
+                f.write("[\n")
+                for i, entry in enumerate(total_results):
+                    f.write("    {\n")
+                    keys = list(entry.keys())
+                    for j, key in enumerate(keys):
+                        # Special handling for lists (cases/results)
+                        if key in ["testcases", "execution_results"] and isinstance(entry[key], list):
+                            f.write(f'        "{key}": [\n')
+                            for k_idx, item in enumerate(entry[key]):
+                                c_str = json.dumps(item, ensure_ascii=False)
+                                comma = "," if k_idx < len(entry[key]) - 1 else ""
+                                f.write(f"            {c_str}{comma}\n")
+                            f.write(f"        ]{',' if j < len(keys) - 1 else ''}\n")
+                        else:
+                            k_str = json.dumps(key, ensure_ascii=False)
+                            v_str = json.dumps(entry[key], ensure_ascii=False)
+                            f.write(f"        {k_str}: {v_str}{',' if j < len(keys) - 1 else ''}\n")
+                    f.write(f"    }}{',' if i < len(total_results) - 1 else ''}\n")
+                f.write("]\n")
+            print(f"   ✅ Saved.")
+        except Exception as e:
+            print(f"   ❌ Save failed: {e}")
+
+    # --- Helpers ---
+
+    def _discover_op_path(self, op_name: str, candidates: List[str]) -> str:
+        for prefix in candidates:
+            path = f"{prefix}.{op_name}"
+            try:
+                self._load_function(path)
+                return path
+            except (ImportError, AttributeError, ValueError):
+                continue
+        raise ValueError(f"❌ Cannot find op '{op_name}' in {candidates}")
+
+    def _parse_spec(self, d, name):
+        strides = tuple(d["strides"]) if d.get("strides") else None
+        return TensorSpec.from_tensor(
+            tuple(d["shape"]),
+            strides,
+            getattr(infinicore, d.get("dtype", "float32"), infinicore.float32),
+            name=d.get("name", name),
+        )
+
+    def _spec_to_dict(self, s):
+        return {
+            "name": s.name,
+            "shape": list(s.shape) if s.shape else None,
+            "dtype": str(s.dtype).split(".")[-1],
+            "strides": list(s.strides) if s.strides else None,
+        }
+
+    def _fmt_result(self, res):
+        if not (is_dataclass(res) or hasattr(res, "success")):
+            return str(res)
+        
+        get_time = lambda k: round(getattr(res, k, 0.0), 4)
+        
+        # Build Map
+        dev_map = {v: k for k, v in vars(InfiniDeviceEnum).items() if not k.startswith("_")}
+        dev_str = dev_map.get(getattr(res, "device", None), str(getattr(res, "device", None)))
+
+        return {
+            "status": {
+                "success": getattr(res, "success", False),
+                "error": getattr(res, "error_message", ""),
+            },
+            "perf_ms": {
+                "torch": {"host": get_time("torch_host_time"), "device": get_time("torch_device_time")},
+                "infinicore": {"host": get_time("infini_host_time"), "device": get_time("infini_device_time")},
+            },
+            "dev": dev_str,
+        }
+
+    def _load_function(self, path):
+        if not path or "." not in path: raise ValueError(f"Invalid path: {path}")
+        m, f = path.rsplit(".", 1)
+        return getattr(importlib.import_module(m), f)
+
+    def _get_default_args(self):
+        old_argv = sys.argv; sys.argv = [sys.argv[0]]; args = get_args(); sys.argv = old_argv
+        return args
+
+    def _merge_args(self, args, overrides):
+        if not overrides: return
+        data = vars(overrides) if isinstance(overrides, argparse.Namespace) else overrides
+        for k, v in data.items():
+            if v is not None: setattr(args, k, v)
+
+    def _set_device_flags(self, args, dev_str):
+        for flag in self.supported_hw_flags: setattr(args, flag, False)
+        d = str(dev_str).lower()
+        if hasattr(args, d): setattr(args, d, True)
+        else: args.cpu = True; print(f"⚠️ Device '{d}' -> CPU")
+
+    def _normalize_override_config(self, config):
+        if isinstance(config, str) and os.path.exists(config):
+            with open(config) as f: return json.load(f)
+        return vars(config) if isinstance(config, argparse.Namespace) else (config or {})
diff --git a/test/infinicore/run_external_case.py b/test/infinicore/run_external_case.py
new file mode 100644
index 000000000..a00ae140a
--- /dev/null
+++ b/test/infinicore/run_external_case.py
@@ -0,0 +1,86 @@
+import sys
+import os
+import argparse
+import time
+
+# ==============================================================================
+# 🛠️ Path Adaptation
+# ==============================================================================
+current_dir = os.path.dirname(os.path.abspath(__file__))
+if current_dir not in sys.path:
+    sys.path.append(current_dir)
+
+from framework.testcase_manager import TestCaseManager
+
+def main():
+    parser = argparse.ArgumentParser(description="External Test Case Runner for InfiniCore")
+    
+    # Optional file path (if None, uses default add case)
+    parser.add_argument("file_path", type=str, nargs="?", help="Path to JSON config file")
+    
+    # Overrides
+    parser.add_argument("--device", type=str, default=None, help="Override target device (e.g. nvidia, cpu)")
+    parser.add_argument("--bench", type=str, choices=["host", "device", "both"], default=None, help="Override benchmark mode")
+    parser.add_argument("--debug", action="store_true", help="Enable debug mode")
+    parser.add_argument("--num_prerun", type=int, default=None, help="Override warmup iterations")
+    parser.add_argument("--num_iterations", type=int, default=None, help="Override measured iterations")
+    parser.add_argument("--verbose", action="store_true", help="Enable verbose logging")
+    
+    # Save option
+    parser.add_argument(
+        "--save", 
+        nargs="?", 
+        const="AUTO", 
+        default=None, 
+        help="Path to save effective config JSON with results. If flag is used without value, generates 'test_case_<timestamp>.json'"
+    )
+    
+    args = parser.parse_args()
+
+    # Handle automatic save path generation
+    final_save_path = args.save
+    if final_save_path == "AUTO":
+        timestamp = time.strftime("%Y%m%d_%H%M%S")
+        final_save_path = f"result_{timestamp}.json"
+
+    # Construct override dictionary
+    override_dict = {
+        k: v for k, v in vars(args).items()
+        if k not in ["file_path", "save"] and v is not None and v is not False
+    }
+
+    if override_dict:
+        print(f"⚡ CLI Overrides detected: {override_dict}")
+
+    # Run Manager
+    manager = TestCaseManager()
+    try:
+        results = manager.run(
+            json_file_path=args.file_path, 
+            config=override_dict, 
+            save_path=final_save_path
+        )
+        
+        # Simple exit code logic based on results
+        success = True
+        if isinstance(results, list):
+            for entry in results:
+                
+                exec_results = entry.get("execution_results", [])
+                for res in exec_results:
+                    
+                    status = res.get("status", {})
+                    if not status.get("success", False):
+                        success = False
+                        print(f"❌ Failure detected: {status.get('error', 'Unknown error')}")
+                        break
+                
+                if not success:
+                    break
+            
+    except Exception as e:
+        print(f"\n❌ Execution Error: {e}")
+        sys.exit(1)
+
+if __name__ == "__main__":
+    main()