diff --git a/scripts/verify_pr_reconciliation.py b/scripts/verify_pr_reconciliation.py
index 4e85c458ea..42ee941401 100644
--- a/scripts/verify_pr_reconciliation.py
+++ b/scripts/verify_pr_reconciliation.py
@@ -75,6 +75,9 @@ def check_batch932_file(item):
     Also authenticate the exact PR53 replay adapter and its test from c58c1778;
     this extension retains the earlier assertion guard and every module.
     Also bind the exact complete legacy-family routing and its failure test.
+    The da400586 runner retains Nick Petalas's 9158ee6d private caches,
+    Tekalign's 54bbb81c optional deadlines and Douglas Colkitt's descendant
+    cache propagation. Admit only that complete successor, preserving receipts.
     """
     name = item['integrated_path']
     digest = hashlib.sha256((ROOT / name).read_bytes()).hexdigest()
@@ -85,7 +88,8 @@ def check_batch932_file(item):
             '96ea543e6c707424afe247e77bd86c82152f90fc76a0773c4232145da5cdf8d1',
             ('b1c645e815a6abfbfdc2d77c4121c543ed0ca958095e97e1181d64e84cac0ed8',
              '05839996482058359b2ab8087d7d96e76934bd03d79981df9b99447e8ed09331',
-             'fdc022f70e42a9b5a2be8c6c3645cfdc211c6dffdffac68904b2945b1cdc3e5a', 'f569b1c287252c698b4d59bc1bd0f013159e772cc3be64e26c4eab8eb99d0478', '6f353dae3f922d78f62bedddcb50cfe2b500b4195a888cec5ffac2367b1a4f88', '2bcc91541d4c328e9ca329aa02516836dc55fe326299ad6ecee6439f5806f6aa', '8f9298eb83184a447ee2dda64a42dfc5a56df08e4affae56f99974cad632713a')),
+             'fdc022f70e42a9b5a2be8c6c3645cfdc211c6dffdffac68904b2945b1cdc3e5a', 'f569b1c287252c698b4d59bc1bd0f013159e772cc3be64e26c4eab8eb99d0478', '6f353dae3f922d78f62bedddcb50cfe2b500b4195a888cec5ffac2367b1a4f88', '2bcc91541d4c328e9ca329aa02516836dc55fe326299ad6ecee6439f5806f6aa', '8f9298eb83184a447ee2dda64a42dfc5a56df08e4affae56f99974cad632713a',
+             'ef5035e6216d39569da670f32b2717c870b23c418016fd134cc0a72649fb912a')),
         'tests/test_isolated_test_runner.py': (
             '628391b6abfbc8674ceec1751867a4392f2cc0b5b66886243e139af86cf355ac',
             ('8262f36202e426b849a925123ff789843115d5e564962710c31ab14f84c88067',
diff --git a/tests/test_pr_reconciliation.py b/tests/test_pr_reconciliation.py
index db84e0f46b..5959de5c6b 100644
--- a/tests/test_pr_reconciliation.py
+++ b/tests/test_pr_reconciliation.py
@@ -225,6 +225,24 @@ def read(path):
                 with patch.object(Path, 'read_bytes', read), self.assertRaises(ValueError):
                     checker.check_batch932_file(item)
 
+    def test_current_successor_cache_and_timeout_edits_fail(self):
+        item = next(item for item in self.items if item['integrated_path'].startswith('scripts/'))
+        current = (ROOT / item['integrated_path']).read_bytes()
+        mutations = [
+            current.replace(b'cwd=cwd, env=module_env, start_new_session=True',
+                            b'cwd=cwd, env=env, start_new_session=True'),
+            current.replace(b'if deadline is not None and time.monotonic() >= deadline:',
+                            b'if False:'),
+        ]
+        original_read = Path.read_bytes
+        for mutated in mutations:
+            self.assertNotEqual(current, mutated)
+            def read(path):
+                return mutated if path == ROOT / item['integrated_path'] else original_read(path)
+            with patch.object(Path, 'read_bytes', read), self.assertRaisesRegex(
+                    ValueError, 'Changed integrated file: scripts/run_isolated_tests.py'):
+                checker.check_batch932_file(item)
+
     def test_forged_predecessor_and_cross_file_successor_fail(self):
         for item in self.items:
             item['integrated_sha256'] = '0' * 64