Fix model env var lookup for provider names with hyphens (opencodezen-go)

Author: johnteee

teaagent/llm/_types.py

@@ -117,11 +117,8 @@ def resolved_api_key(self) -> str:
         return api_key
 
     def resolved_model(self) -> str:
-        return (
-            self.model
-            or os.environ.get(f'{self.name.upper()}_MODEL')
-            or self.default_model
-        )
+        env_prefix = self.name.upper().replace('-', '_')
+        return self.model or os.environ.get(f'{env_prefix}_MODEL') or self.default_model
 
     def resolved_base_url(self) -> str:
         if self.base_url_env and os.environ.get(self.base_url_env):

tests/test_llm.py

@@ -151,6 +151,21 @@ def test_opencodezen_go_is_openai_compatible_and_configurable(self) -> None:
             transport.calls[0]['url'], 'https://local.test/v1/chat/completions'
         )
 
+    def test_opencodezen_go_model_env_override_uses_underscore_key(self) -> None:
+        transport = FakeTransport({'choices': [{'message': {'content': 'ok'}}]})
+        with patch.dict(
+            os.environ,
+            {
+                'OPENCODEZEN_API_KEY': 'key',
+                'OPENCODEZEN_GO_MODEL': 'deepseek-v4-pro',
+            },
+            clear=True,
+        ):
+            adapter = create_llm_adapter('opencodezen-go', transport=transport)
+            adapter.complete(LLMRequest(messages=[LLMMessage('user', 'hi')]))
+
+        self.assertEqual(transport.calls[0]['payload']['model'], 'deepseek-v4-pro')
+
     def test_configuration_check_reports_missing_key(self) -> None:
         with patch.dict(os.environ, {}, clear=True):
             ok, message = check_llm_configuration('gpt')