diff --git a/checkers/external_tools_check.py b/checkers/external_tools_check.py
new file mode 100644
index 0000000..68ca629
--- /dev/null
+++ b/checkers/external_tools_check.py
@@ -0,0 +1,79 @@
+#!/usr/bin/env python3
+#
+# Copyright 2026 Enflame. All Rights Reserved.
+#
+
+import subprocess
+import os
+import re
+import sys
+import json
+from pathlib import Path
+
+CHECKERS_DIR = Path(__file__).resolve().parent
+REPO_DIR = CHECKERS_DIR.parent
+sys.path.append(str(REPO_DIR))
+from common.static_check_common import QualityCodexCommitee, CICheckerCommon, StaticCheck
+
+CONFIG_PATH = REPO_DIR / 'config' / 'sast.json'
+
+class CIChecker(CICheckerCommon):
+    def __init__(self, api_init=None, args=None, check_api_type=None, static_check=StaticCheck):
+        self.check_name = "external tools check"
+        super().__init__(api_init, args, check_api_type, self.check_name, static_check)
+        self.local_ci_check = True
+        self.local_workspace_check = True
+        self.pass_flag = True
+        self.files_static_check_status = {}
+        self.command_output = {}
+
+    def _load_tools(self):
+        try:
+            with open(CONFIG_PATH, 'r') as f:
+                cfg = json.load(f)
+            return cfg.get('external_tools', [])
+        except Exception:
+            return []
+
+    def check_func(self):
+        tools = self._load_tools()
+        # run each configured tool command; commands should be shell commands (bash)
+        for tool in tools:
+            name = tool.get('name')
+            cmd = tool.get('command')
+            guide = tool.get('guide_link','')
+            if not cmd or not name:
+                continue
+            print("Running {}: {}".format(name, cmd))
+            pipe = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.STDOUT, shell=True, executable='/bin/bash')
+            stdout, _ = pipe.communicate()
+            out = stdout.decode('utf-8', errors='ignore') if stdout else ''
+            ret = pipe.returncode
+            if ret != 0:
+                self.pass_flag = False
+                self.command_output[name] = out
+            else:
+                # still capture output for information
+                self.command_output[name] = out
+
+        return self.check_report()
+
+    def check_report(self):
+        # Prepare a synthetic files_static_check_status entry to integrate with existing output format
+        self.files_static_check_status['external_tools'] = {"check_status": self.pass_flag}
+        QualityCodexCommitee.FormatOutputSimple(self.check_name, self.pass_flag, self.id, self.files_static_check_status, CHECK_LEVEL)
+
+        # Print outputs for failed tools
+        for tool_name, output in self.command_output.items():
+            if output:
+                print('\t=== {} output ==='.format(tool_name))
+                for line in output.splitlines():
+                    print('\t\t' + line)
+
+        if not self.pass_flag:
+            print('\tPlease review guide links in config/sast.json for remediation.')
+        assert self.pass_flag, "Failed {}".format(self.id)
+
+if __name__ == '__main__':
+    c = CIChecker(None, None, None)
+    c.check()
diff --git a/config/sast.json b/config/sast.json
index e564348..906de7a 100644
--- a/config/sast.json
+++ b/config/sast.json
@@ -221,7 +221,54 @@
     },
     "checks_group":{
         "external_checks":[
-                "codespell_check","cpplint_check","gitleaks_check","hardcode_check","jsonlint_check","line_terminators_check"
+                "codespell_check","cpplint_check","gitleaks_check","hardcode_check","jsonlint_check","line_terminators_check","external_tools_check"
             ]
+        },
+    "external_tools":[
+        {
+            "name":"bandit",
+            "command":"bandit -r . -f json -o bandit_report.json",
+            "guide_link":"https://bandit.readthedocs.io/"
+        },
+        {
+            "name":"mypy",
+            "command":"mypy . --ignore-missing-imports --show-error-codes",
+            "guide_link":"https://mypy-lang.org/"
+        },
+        {
+            "name":"pylint",
+            "command":"pylint $(git ls-files '*.py') || true",
+            "guide_link":"https://pylint.pycqa.org/"
+        },
+        {
+            "name":"safety",
+            "command":"safety check -r requirements.txt --full-report || true",
+            "guide_link":"https://pyup.io/safety/"
+        },
+        {
+            "name":"detect-secrets",
+            "command":"detect-secrets scan --all-files --json > .secrets.json || true",
+            "guide_link":"https://github.com/Yelp/detect-secrets"
+        },
+        {
+            "name":"checkov",
+            "command":"checkov -d . -o json || true",
+            "guide_link":"https://www.checkov.io/"
+        },
+        {
+            "name":"hadolint",
+            "command":"hadolint Dockerfile -f json || true",
+            "guide_link":"https://github.com/hadolint/hadolint"
+        },
+        {
+            "name":"tfsec",
+            "command":"tfsec . --format json --out tfsec_report.json || true",
+            "guide_link":"https://tfsec.dev/"
+        },
+        {
+            "name":"yamllint",
+            "command":"yamllint -f parsable . || true",
+            "guide_link":"https://yamllint.readthedocs.io/"
         }
+    ]
 }
diff --git a/requirements.txt b/requirements.txt
index 068d49c..7e36e35 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,12 @@
 chardet==4.0.0
 Requests==2.32.4
 tomli==2.2.1
+
+bandit
+mypy
+pylint
+safety
+detect-secrets
+checkov
+yamllint
+