diff --git a/web/tests/test_content.py b/web/tests/test_content.py
index ecbe09f..4ea2de4 100644
--- a/web/tests/test_content.py
+++ b/web/tests/test_content.py
@@ -68,16 +68,17 @@ async def _create_published_scenario(slug="test-scenario", city="TestCity", coun
 
 
 async def _create_article(slug="test-article", url_path="/test-article",
-                           status="published", published_at=None):
+                           status="published", published_at=None,
+                           article_type="editorial"):
     """Insert an article row, return its id."""
     pub = published_at or utcnow_iso()
     return await execute(
         """INSERT INTO articles
            (url_path, slug, title, meta_description, country, region,
-            status, published_at)
-           VALUES (?, ?, ?, ?, ?, ?, ?, ?)""",
+            status, published_at, article_type)
+           VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?)""",
         (url_path, slug, f"Title {slug}", f"Desc {slug}", "US", "North America",
-         status, pub),
+         status, pub, article_type),
     )
 
 
@@ -1228,6 +1229,96 @@ class TestAdminArticles:
         assert resp.status_code == 302
         assert await fetch_one("SELECT 1 FROM articles WHERE id = ?", (article_id,)) is None
 
+    async def test_delete_never_removes_md_source(self, admin_client, db, tmp_path, monkeypatch):
+        """Regression: deleting an article must NOT touch source .md files."""
+        import padelnomics.content.routes as content_routes_mod
+
+        build_dir = tmp_path / "build"
+        build_dir.mkdir()
+        monkeypatch.setattr(content_routes_mod, "BUILD_DIR", build_dir)
+
+        (build_dir / "del-safe.html").write_text("<p>built</p>")
+        md_file = tmp_path / "del-safe.md"
+        md_file.write_text("# Source")
+
+        article_id = await _create_article(slug="del-safe", url_path="/del-safe")
+
+        async with admin_client.session_transaction() as sess:
+            sess["csrf_token"] = "test"
+
+        resp = await admin_client.post(f"/admin/articles/{article_id}/delete", form={
+            "csrf_token": "test",
+        })
+        assert resp.status_code == 302
+        assert await fetch_one("SELECT 1 FROM articles WHERE id = ?", (article_id,)) is None
+        assert not (build_dir / "del-safe.html").exists(), "build file should be removed"
+        assert md_file.exists(), "source .md must NOT be deleted"
+
+    async def test_bulk_delete_by_ids_never_removes_md(self, admin_client, db, tmp_path, monkeypatch):
+        """Regression: bulk delete by explicit IDs must NOT touch source .md files."""
+        import padelnomics.content.routes as content_routes_mod
+
+        build_dir = tmp_path / "build"
+        build_dir.mkdir()
+        monkeypatch.setattr(content_routes_mod, "BUILD_DIR", build_dir)
+
+        (build_dir / "bulk-del-1.html").write_text("<p>1</p>")
+        (build_dir / "bulk-del-2.html").write_text("<p>2</p>")
+        md1 = tmp_path / "bulk-del-1.md"
+        md2 = tmp_path / "bulk-del-2.md"
+        md1.write_text("# One")
+        md2.write_text("# Two")
+
+        id1 = await _create_article(slug="bulk-del-1", url_path="/bulk-del-1", article_type="generated")
+        id2 = await _create_article(slug="bulk-del-2", url_path="/bulk-del-2", article_type="cornerstone")
+
+        async with admin_client.session_transaction() as sess:
+            sess["csrf_token"] = "test"
+
+        resp = await admin_client.post("/admin/articles/bulk", form={
+            "csrf_token": "test",
+            "action": "delete",
+            "article_ids": f"{id1},{id2}",
+            "apply_to_all": "false",
+            "article_type": "generated",
+        })
+        assert resp.status_code == 200
+        assert await fetch_one("SELECT 1 FROM articles WHERE id = ?", (id1,)) is None
+        assert await fetch_one("SELECT 1 FROM articles WHERE id = ?", (id2,)) is None
+        assert not (build_dir / "bulk-del-1.html").exists()
+        assert not (build_dir / "bulk-del-2.html").exists()
+        assert md1.exists(), "generated article .md must NOT be deleted"
+        assert md2.exists(), "cornerstone article .md must NOT be deleted"
+
+    async def test_bulk_delete_apply_to_all_never_removes_md(self, admin_client, db, tmp_path, monkeypatch):
+        """Regression: bulk delete apply_to_all must NOT touch source .md files."""
+        import padelnomics.content.routes as content_routes_mod
+
+        build_dir = tmp_path / "build"
+        build_dir.mkdir()
+        monkeypatch.setattr(content_routes_mod, "BUILD_DIR", build_dir)
+
+        (build_dir / "ata-del.html").write_text("<p>x</p>")
+        md_file = tmp_path / "ata-del.md"
+        md_file.write_text("# Source")
+
+        await _create_article(slug="ata-del", url_path="/ata-del", article_type="generated")
+
+        async with admin_client.session_transaction() as sess:
+            sess["csrf_token"] = "test"
+
+        resp = await admin_client.post("/admin/articles/bulk", form={
+            "csrf_token": "test",
+            "action": "delete",
+            "apply_to_all": "true",
+            "article_type": "generated",
+            "search": "ata-del",
+        })
+        assert resp.status_code == 200
+        assert await fetch_one("SELECT 1 FROM articles WHERE slug = 'ata-del'") is None
+        assert not (build_dir / "ata-del.html").exists()
+        assert md_file.exists(), "source .md must NOT be deleted"
+