Fix stale Chat Completions API reference in skill doc

The data-transmission note in .claude/commands/ai-review-local.md said
the script POSTs to OpenAI's Chat Completions API. The script has used
the Responses API (ENDPOINT = .../v1/responses) for some time; this is
a leftover from before that migration.

Adds a TestSkillDocAPIConsistency regression test that grep-asserts the
skill doc never says "Chat Completions API" again.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: igerber

.claude/commands/ai-review-local.md

@@ -507,7 +507,7 @@ runs `--force-fresh` or when a rebase invalidates the tracked commit.
 - **Data transmission**: In non-dry-run mode, this skill transmits the unified diff,
   changed-file metadata, full source file contents (in standard/deep mode),
   import-context files (in deep mode), selected methodology registry text, and
-  prior review context (if present) to OpenAI via the Chat Completions API.
+  prior review context (if present) to OpenAI via the Responses API.
   Use `--dry-run` to preview exactly what would be sent.
 - This skill pairs naturally with the iterative workflow:
   `/ai-review-local` -> address findings -> `/ai-review-local` -> `/submit-pr`

tests/test_openai_review.py

@@ -1663,6 +1663,24 @@ def test_gpt55_pro_snapshot_matches_pro(self, review_mod):
         assert snapshot == base
 
 
+class TestSkillDocAPIConsistency:
+    """Catch doc drift between the script's API endpoint and the skill doc's
+    user-facing data-transmission note."""
+
+    def test_skill_doc_does_not_reference_chat_completions(self):
+        """Skill doc must not say "Chat Completions API" — script uses Responses API."""
+        assert _SCRIPT_PATH is not None
+        repo_root = _SCRIPT_PATH.parent.parent.parent
+        doc_path = repo_root / ".claude" / "commands" / "ai-review-local.md"
+        if not doc_path.exists():
+            pytest.skip("ai-review-local.md not found")
+        text = doc_path.read_text()
+        assert "Chat Completions API" not in text, (
+            "Skill doc references stale Chat Completions API; "
+            "script uses Responses API at openai_review.py:ENDPOINT"
+        )
+
+
 class TestExtractResponseText:
     def test_prefers_output_text_field(self, review_mod):
         result = {"output_text": "Direct text.", "output": []}