diff --git a/tools/verify_diagnostics.py b/tools/verify_diagnostics.py
new file mode 100644
index 00000000..16023468
--- /dev/null
+++ b/tools/verify_diagnostics.py
@@ -0,0 +1,83 @@
+import argparse
+import json
+import subprocess
+import sys
+from pathlib import Path
+from typing import Optional, Tuple
+
+ROOT = Path(__file__).resolve().parent
+DIAGNOSTIC_DIR = ROOT / "diagnostic"
+DIAGNOSTIC_CHUNK_SIZE = 40 * 1024 * 1024
+
+def current_commit_id() -> str:
+    try:
+        result = subprocess.run(
+            ["git", "rev-parse", "--verify", "HEAD"],
+            cwd=str(ROOT),
+            capture_output=True,
+            text=True,
+            timeout=5,
+        )
+        commit = result.stdout.strip()
+        if result.returncode == 0 and len(commit) >= 8:
+            return commit[:8]
+    except subprocess.CalledProcessError as e:
+        print(f"Error retrieving commit ID: {e}", file=sys.stderr)
+    except Exception as e:
+        print(f"Unexpected error: {e}", file=sys.stderr)
+    return "00000000"
+
+
+def diagnostic_paths_for_commit() -> Tuple[Path, Path, str]:
+    DIAGNOSTIC_DIR.mkdir(parents=True, exist_ok=True)
+    commit_id = current_commit_id()
+    logd_path = DIAGNOSTIC_DIR / f"build-{commit_id}.logd"
+    metadata_path = DIAGNOSTIC_DIR / f"build-{commit_id}.json"
+    return logd_path, metadata_path, commit_id
+
+
+def split_diagnostic_logd(logd_path: Path, chunk_size: int = DIAGNOSTIC_CHUNK_SIZE) -> list[Path]:
+    if logd_path.stat().st_size <= chunk_size:
+        return [logd_path]
+    # Logic to split logd file goes here
+
+
+def validate_json_schema(json_data: dict) -> bool:
+    # Placeholder for JSON schema validation logic
+    return True
+
+
+def main():
+    parser = argparse.ArgumentParser(description="Verify diagnostics.")
+    parser.add_argument('--verbose', action='store_true', help='Enable verbose output')
+    parser.add_argument('--json', action='store_true', help='Output in JSON format')
+    parser.add_argument('--threshold', type=int, default=0, help='Minimum passing modules')
+    args = parser.parse_args()
+
+    logd_path, metadata_path, commit_id = diagnostic_paths_for_commit()
+
+    try:
+        # Example subprocess call
+        result = subprocess.run(["some_command"], check=True)
+    except subprocess.CalledProcessError as e:
+        print(f"Subprocess failed: {e}", file=sys.stderr)
+        sys.exit(1)
+
+    # Load and validate JSON
+    try:
+        with open(metadata_path) as f:
+            json_data = json.load(f)
+            if not validate_json_schema(json_data):
+                print("Invalid JSON schema.", file=sys.stderr)
+                sys.exit(1)
+    except FileNotFoundError:
+        print(f"Metadata file not found: {metadata_path}", file=sys.stderr)
+        sys.exit(1)
+    except json.JSONDecodeError as e:
+        print(f"Error decoding JSON: {e}", file=sys.stderr)
+        sys.exit(1)
+
+    # Further processing based on args
+
+if __name__ == '__main__':
+    main()
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