diff --git a/test/setup-claude-skill-assets.test.ts b/test/setup-claude-skill-assets.test.ts
index 2599a0b6d..c563b6ef5 100644
--- a/test/setup-claude-skill-assets.test.ts
+++ b/test/setup-claude-skill-assets.test.ts
@@ -66,6 +66,19 @@ beforeAll(() => {
     extractFn('_link_or_copy'),
     extractFn('_print_windows_copy_note_once'),
     extractFn('_link_skill_runtime_assets'),
+    extractFn('_gstack_link_target_abs'),
+    extractFn('_gstack_target_is_ours'),
+    extractFn('_gstack_generated_header'),
+    extractFn('_claude_entry_owned_strongly'),
+    extractFn('_claude_entry_is_ours'),
+    extractFn('_write_owned_marker'),
+    extractFn('_backup_skill_md'),
+    extractFn('_cleanup_weak_dir'),
+    extractFn('_gstack_dir_only_links'),
+    extractFn('_cleanup_linked_dir'),
+    '_FOREIGN_SKIPPED_ENTRIES=()',
+    '_BACKED_UP_SKILL_MDS=()',
+    `_SKILL_BACKUP_ROOT="${os.tmpdir()}/gstack-harness-backups-${process.pid}"`,
     extractFn('link_claude_skill_dirs'),
     `link_claude_skill_dirs "${ROOT}" "${installDir}"`,
   ].join('\n');
@@ -138,11 +151,14 @@ describe('link_claude_skill_dirs installs every runtime asset (#2317, #2454)', (
     }
   });
 
-  test('hidden files are not installed', () => {
+  test('hidden files are not installed (gstack\'s own provenance marker is the one allowed dotfile)', () => {
     for (const skill of installedSkillDirs()) {
       const hidden = fs
         .readdirSync(path.join(installDir, skill))
-        .filter((e) => e.startsWith('.'));
+        .filter((e) => e.startsWith('.'))
+        // .gstack-owned is written by the linker for directories it creates (#2119),
+        // not copied from the skill source; every other dotfile must stay out.
+        .filter((e) => e !== '.gstack-owned');
       expect(hidden).toEqual([]);
     }
   });
diff --git a/test/user-render-out-dir-install.test.ts b/test/user-render-out-dir-install.test.ts
index 02e20d79a..0295c5925 100644
--- a/test/user-render-out-dir-install.test.ts
+++ b/test/user-render-out-dir-install.test.ts
@@ -175,6 +175,19 @@ describe('link_claude_skill_dirs prefers rendered SKILL.md (behavior)', () => {
         extractFn(SETUP_SRC, '_link_or_copy'),
         extractFn(SETUP_SRC, '_print_windows_copy_note_once'),
         extractFn(SETUP_SRC, '_link_skill_runtime_assets'),
+        extractFn(SETUP_SRC, '_gstack_link_target_abs'),
+        extractFn(SETUP_SRC, '_gstack_target_is_ours'),
+        extractFn(SETUP_SRC, '_gstack_generated_header'),
+        extractFn(SETUP_SRC, '_claude_entry_owned_strongly'),
+        extractFn(SETUP_SRC, '_claude_entry_is_ours'),
+        extractFn(SETUP_SRC, '_write_owned_marker'),
+        extractFn(SETUP_SRC, '_backup_skill_md'),
+        extractFn(SETUP_SRC, '_cleanup_weak_dir'),
+        extractFn(SETUP_SRC, '_gstack_dir_only_links'),
+        extractFn(SETUP_SRC, '_cleanup_linked_dir'),
+        '_FOREIGN_SKIPPED_ENTRIES=()',
+        '_BACKED_UP_SKILL_MDS=()',
+        `_SKILL_BACKUP_ROOT="${os.tmpdir()}/gstack-harness-backups-${process.pid}"`,
         extractFn(SETUP_SRC, 'link_claude_skill_dirs'),
         `link_claude_skill_dirs "${src}" "${skills}"`,
       ].join('\n');