diff --git a/.gitignore b/.gitignore
index f3f577d..60920a3 100644
--- a/.gitignore
+++ b/.gitignore
@@ -74,3 +74,4 @@ uv.lock
 # Internal maintenance material — not repository content
 _after-care/
 BEFUNDE.md
+MARKETING-LOG.txt
diff --git a/template/.gitignore b/template/.gitignore
index eb34fb8..c0426fd 100644
--- a/template/.gitignore
+++ b/template/.gitignore
@@ -69,3 +69,8 @@ uv.lock
 .turbo/
 .nyc_output/
 .hypothesis/
+
+# Internal maintenance material — not repository content
+_after-care/
+BEFUNDE.md
+MARKETING-LOG.txt
diff --git a/tests/test_metadata.py b/tests/test_metadata.py
index 0e20076..01ccaa3 100644
--- a/tests/test_metadata.py
+++ b/tests/test_metadata.py
@@ -343,6 +343,7 @@ def test_gitignore_canonical_locks_and_multihost_defense(self) -> None:
             ".turbo/",
             ".nyc_output/",
             ".hypothesis/",
+            "MARKETING-LOG.txt",
         ]
         for pattern in expected_patterns:
             self.assertIn(pattern, content, f"Root .gitignore must defend against {pattern}")
@@ -365,6 +366,7 @@ def test_template_gitignore_inherits_defense(self) -> None:
             ".turbo/",
             ".nyc_output/",
             ".hypothesis/",
+            "MARKETING-LOG.txt",
         ]
         for pattern in expected_patterns:
             self.assertIn(pattern, content, f"Template .gitignore must defend against {pattern}")