Address review feedback for kluster.ai provider

- Add provider_endpoints_support.json entry (fixes the code-quality
  provider-documentation check).
- Expand supported OpenAI params (user, seed, parallel_tool_calls,
  stream_options, max_completion_tokens).
- Make the provider-info test hermetic by patching get_secret_str
  instead of os.environ.

litellm/llms/kluster_ai/chat/transformation.py

@@ -40,10 +40,13 @@ class KlusterAIConfig(OpenAIGPTConfig):
     def get_supported_openai_params(self, model: str) -> list:
         return [
             "max_tokens",
+            "max_completion_tokens",
             "n",
             "temperature",
             "top_p",
+            "seed",
             "stream",
+            "stream_options",
             "logprobs",
             "top_logprobs",
             "frequency_penalty",
@@ -53,4 +56,6 @@ class KlusterAIConfig(OpenAIGPTConfig):
             "logit_bias",
             "tools",
             "tool_choice",
+            "parallel_tool_calls",
+            "user",
         ]

provider_endpoints_support.json

@@ -32,6 +32,24 @@
     }
   },
   "providers": {
+    "kluster_ai": {
+      "display_name": "Kluster AI (`kluster_ai`)",
+      "url": "https://docs.litellm.ai/docs/providers/kluster_ai",
+      "endpoints": {
+        "chat_completions": true,
+        "messages": true,
+        "responses": true,
+        "embeddings": false,
+        "image_generations": false,
+        "audio_transcriptions": false,
+        "audio_speech": false,
+        "moderations": false,
+        "batches": false,
+        "rerank": false,
+        "a2a": true,
+        "interactions": true
+      }
+    },
     "a2a": {
       "display_name": "A2A (Agent-to-Agent) (`a2a`)",
       "url": "https://docs.litellm.ai/docs/providers/a2a",

tests/test_litellm/llms/kluster_ai/chat/test_kluster_ai_chat_transformation.py

@@ -51,7 +51,13 @@ class TestKlusterAIConfig:
             assert KlusterAIConfig.API_BASE_URL == "https://api.kluster.ai/v1"
 
     def test_get_openai_compatible_provider_info(self):
-        with patch.dict(os.environ, {"KLUSTER_AI_API_KEY": "sk-secret"}, clear=False):
+        def fake_secret(name, *args, **kwargs):
+            return "sk-secret" if name == "KLUSTER_AI_API_KEY" else None
+
+        with patch(
+            "litellm.llms.kluster_ai.chat.transformation.get_secret_str",
+            side_effect=fake_secret,
+        ):
             api_base, api_key = self.config._get_openai_compatible_provider_info(
                 api_base=None, api_key=None
             )