refactor: unify impl operation gates and correction verification

harness/tests/impl/test_rework_readback.py

@@ -7,6 +7,7 @@ import unittest
 from argparse import Namespace
 from pathlib import Path
 from urllib.parse import parse_qs, urlsplit
+from harness.tests.common.impl_contract_docs import read_contract
 
 DIRECTORY = Path(__file__).parents[2] / 'agents/impl/skills/gitea-issue-rework/scripts'
 ORIGIN = 'https://gitea.jsfamily.quest'
@@ -696,7 +697,7 @@ class ReworkReadbackTests(unittest.TestCase):
 
     def test_shared_commit_message_safety_rule_is_linked_and_amend_is_narrow(self):
         common = (DIRECTORY.parents[4]/'operations/repository-cache.md').read_text()
-        skill = (DIRECTORY.parent/'SKILL.md').read_text()
+        skill = read_contract(DIRECTORY.parent / 'SKILL.md')
         self.assertIn('## Commit-message reference safety', common)
         for clause in ('complete subject and body', 'cross-repository',
                        'non-default branch', 'explicit user authorization',