diff --git a/tests/list_md_seen_by_importer.py b/tests/list_md_seen_by_importer.py
new file mode 100644
index 0000000..48da251
--- /dev/null
+++ b/tests/list_md_seen_by_importer.py
@@ -0,0 +1,49 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+"""
+tests/list_md_seen_by_importer.py
+Zeigt, welche Markdown-Dateien der Importer sehen würde (gleiche Filter & Sortierung).
+Usage:
+  python3 tests/list_md_seen_by_importer.py --vault ./test_vault
+"""
+from __future__ import annotations
+import argparse, os, sys, json
+
+def iter_md(root: str):
+    out = []
+    for dirpath, _, filenames in os.walk(root):
+        for fn in filenames:
+            p = os.path.join(dirpath, fn)
+            pn = p.replace("\\", "/")
+            item = {
+                "path": os.path.abspath(p),
+                "rel": os.path.relpath(p, root).replace("\\", "/"),
+                "included": False,
+                "reason": "",
+            }
+            if not fn.lower().endswith(".md"):
+                item["reason"] = "skip_ext"
+            elif "/.obsidian/" in pn or "/_backup_frontmatter/" in pn or "/_imported/" in pn:
+                item["reason"] = "skip_special_dir"
+            else:
+                item["included"] = True
+                item["reason"] = "ok"
+                out.append(item)
+            # auch die ausgeschlossenen zeigen:
+            if not item["included"]:
+                print(json.dumps(item, ensure_ascii=False))
+    out_sorted = sorted(out, key=lambda x: x["rel"])
+    for i, it in enumerate(out_sorted):
+        it["order"] = i
+        print(json.dumps(it, ensure_ascii=False))
+    print(json.dumps({"summary":"done","included":len(out_sorted)}, ensure_ascii=False))
+
+def main():
+    ap = argparse.ArgumentParser()
+    ap.add_argument("--vault", required=True)
+    args = ap.parse_args()
+    root = os.path.abspath(args.vault)
+    iter_md(root)
+
+if __name__ == "__main__":
+    main()