Fix heavy tests failures (#1147)

Author: aozherelyeva

integration-tests/src/jvmTest/kotlin/ai/koog/integration/tests/executor/ExecutorIntegrationTestBase.kt

@@ -876,6 +876,12 @@ abstract class ExecutorIntegrationTestBase {
             model.provider == LLMProvider.Bedrock || model.capabilities.contains(LLMCapability.Moderation),
             "Model $model does not support moderation"
         )
+
+        // KG-560 Bedrock models have guardrail configuration issues
+        assumeTrue(
+            model.id != "us.anthropic.claude-haiku-4-5-20251001-v1:0",
+            "Bedrock Claude Haiku model has guardrail configuration issues"
+        )
         val client = getLLMClient(model)
 
         val prompt = prompt("test-harmful-content") {
@@ -900,6 +906,12 @@ abstract class ExecutorIntegrationTestBase {
             model.provider == LLMProvider.Bedrock || model.capabilities.contains(LLMCapability.Moderation),
             "Model $model does not support moderation"
         )
+
+        // KG-560 Bedrock models have guardrail configuration issues
+        assumeTrue(
+            model.id != "us.anthropic.claude-haiku-4-5-20251001-v1:0",
+            "Bedrock Claude Haiku model has guardrail configuration issues"
+        )
         val client = getLLMClient(model)
 
         // Not harmful (without the answer)

integration-tests/src/jvmTest/kotlin/ai/koog/integration/tests/utils/RetryUtils.kt

@@ -25,6 +25,9 @@ object RetryUtils {
     private const val OPEN_ROUTER_PARTS_ERROR =
         "Field 'id' is required for type with serial name 'ai.koog.prompt.executor.clients.openai.base.models.OpenAIToolCall', but it was missing at path:"
 
+    // External image URL download failures are third-party service issues
+    private const val OPENAI_IMAGE_DOWNLOAD_ERROR = "Error while downloading"
+
     private fun isThirdPartyError(e: Throwable): Boolean {
         val errorMessages = listOf(
             GOOGLE_429_ERROR,
@@ -37,6 +40,7 @@ object RetryUtils {
             OPENAI_500_ERROR,
             OPENAI_503_ERROR,
             OPENAI_LLM_CLIENT_500_ERROR,
+            OPENAI_IMAGE_DOWNLOAD_ERROR,
         )
 
         val message = e.message

prompt/prompt-executor/prompt-executor-clients/prompt-executor-openai-client-base/src/commonMain/kotlin/ai/koog/prompt/executor/clients/openai/base/models/OpenAIDataModels.kt

@@ -326,7 +326,7 @@ public class OpenAIStreamToolCall(
 @Serializable
 public class OpenAIFunction(
     public val name: String,
-    public val arguments: String
+    public val arguments: String = ""
 )
 
 /**
@@ -464,19 +464,19 @@ public class OpenAIStaticContent(public val content: Content) {
  * Exact effects are model-dependent.
  * If not set, the model/provider default applies.
  *
- * Serialized as `"minimal" | "low" | "medium" | "high"`.
+ * Serialized as `"none" | "minimal" | "low" | "medium" | "high"`.
  *
- * See [reasoning_effort](https://platform.openai.com/docs/api-reference/chat/create#chat-create-reasoning_effort)
+ * See [reasoning_effort](https://platform.openai.com/docs/api-reference/responses/create#responses_create-reasoning-effort)
  */
 @Serializable
 public enum class ReasoningEffort {
     /**
-     * Strongly limits internal reasoning to minimize latency and cost.
-     * Best for simple, well-specified tasks where extra deliberation is unnecessary.
-     * Serialized as `"minimal"`.
+     * Disables reasoning.
+     * Is not supported by models before gpt-5.1!
+     * Serialized as `"none"`.
      */
-    @SerialName("minimal")
-    MINIMAL,
+    @SerialName("none")
+    NONE,
 
     /**
      * Allows a small amount of reasoning while prioritizing speed and efficiency.