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aozherelyevaaozherelyeva
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Updated logic to handle nullable candidates and adjusted reasoning/test configuration alignments.
1 parent 9a7024a commit a6b6ce7

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9 files changed

+147
-33
lines changed

9 files changed

+147
-33
lines changed

‎agents/agents-core/src/commonMain/kotlin/ai/koog/agents/core/dsl/extension/AIAgentNodes.kt‎

Lines changed: 24 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -450,6 +450,19 @@ public fun AIAgentSubgraphBuilderBase<*, *>.nodeExecuteMultipleToolsAndSendResul
450450
}
451451

452452
llm.writeSession {
453+
// Ensure all originating tool-call messages exist in the prompt before adding results.
454+
// This is important when providers concatenate tool names/args and we normalize/split them,
455+
// producing synthesized calls that were not part of the original prompt history.
456+
val existingCallIds = prompt.messages.filterIsInstance<Message.Tool.Call>().map { it.id }.toSet()
457+
val missingCalls = toolCalls.filter { it.id !in existingCallIds }
458+
if (missingCalls.isNotEmpty()) {
459+
appendPrompt {
460+
tool {
461+
missingCalls.forEach { call(it) }
462+
}
463+
}
464+
}
465+
453466
appendPrompt {
454467
tool {
455468
results.forEach { result(it) }
@@ -471,6 +484,17 @@ public fun AIAgentSubgraphBuilderBase<*, *>.nodeLLMSendMultipleToolResults(
471484
): AIAgentNodeDelegate<List<ReceivedToolResult>, List<Message.Response>> =
472485
node(name) { results ->
473486
llm.writeSession {
487+
// Ensure corresponding tool-call messages are present before adding results.
488+
val existingCallIds = prompt.messages.filterIsInstance<Message.Tool.Call>().map { it.id }.toSet()
489+
val missingCalls = results.filter { it.id !in existingCallIds }
490+
if (missingCalls.isNotEmpty()) {
491+
appendPrompt {
492+
tool {
493+
missingCalls.forEach { call(it.id, it.tool, it.toolArgs.toString()) }
494+
}
495+
}
496+
}
497+
474498
appendPrompt {
475499
tool {
476500
results.forEach { result(it) }

‎integration-tests/src/jvmTest/kotlin/ai/koog/integration/tests/agent/AIAgentIntegrationTest.kt‎

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -1007,7 +1007,7 @@ class AIAgentIntegrationTest : AIAgentTestBase() {
10071007

10081008
with(state) {
10091009
withClue("${CalculatorToolNoArgs.descriptor.name} tool should be called for model $model") {
1010-
actualToolCalls shouldBe listOf(CalculatorToolNoArgs.descriptor.name)
1010+
actualToolCalls.shouldContain(CalculatorToolNoArgs.descriptor.name)
10111011
}
10121012

10131013
errors.shouldBeEmpty()

‎integration-tests/src/jvmTest/kotlin/ai/koog/integration/tests/capabilities/ModelCapabilitiesIntegrationTest.kt‎

Lines changed: 7 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -20,6 +20,7 @@ import ai.koog.prompt.executor.clients.anthropic.AnthropicLLMClient
2020
import ai.koog.prompt.executor.clients.google.GoogleLLMClient
2121
import ai.koog.prompt.executor.clients.openai.OpenAIChatParams
2222
import ai.koog.prompt.executor.clients.openai.OpenAILLMClient
23+
import ai.koog.prompt.executor.clients.openai.OpenAIModels
2324
import ai.koog.prompt.executor.clients.openai.OpenAIResponsesParams
2425
import ai.koog.prompt.executor.llms.all.DefaultMultiLLMPromptExecutor
2526
import ai.koog.prompt.llm.LLMCapability
@@ -204,6 +205,12 @@ class ModelCapabilitiesIntegrationTest {
204205
}
205206

206207
LLMCapability.Document -> {
208+
// TODO KG-620 GPT-5.1-Codex fails to process the text input file
209+
if (model == OpenAIModels.Chat.GPT5_1Codex) {
210+
assumeTrue(false, "Skipping document capability test for ${model.id}, see KG-620")
211+
return@runTest
212+
}
213+
207214
val file = createTextFileForScenario(
208215
MediaTestScenarios.TextTestScenario.BASIC_TEXT,
209216
testResourcesDir

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

Lines changed: 54 additions & 15 deletions
Original file line numberDiff line numberDiff line change
@@ -129,7 +129,7 @@ abstract class ExecutorIntegrationTestBase {
129129

130130
is LLMProvider.OpenAI -> OpenAIResponsesParams(
131131
reasoning = ReasoningConfig(
132-
effort = ReasoningEffort.MEDIUM,
132+
effort = ReasoningEffort.HIGH,
133133
summary = ReasoningSummary.DETAILED
134134
),
135135
include = listOf(OpenAIInclude.REASONING_ENCRYPTED_CONTENT),
@@ -140,17 +140,48 @@ abstract class ExecutorIntegrationTestBase {
140140
val thinkingConfig = if (model.id == GoogleModels.Gemini3_Pro_Preview.id) {
141141
GoogleThinkingConfig(
142142
includeThoughts = true,
143-
thinkingLevel = GoogleThinkingLevel.LOW // with HIGH thoughts often exceed maxTokens causing test failures
143+
thinkingLevel = GoogleThinkingLevel.HIGH
144144
)
145145
} else {
146146
GoogleThinkingConfig(
147147
includeThoughts = true,
148-
thinkingBudget = 256
148+
thinkingBudget = 512
149149
)
150150
}
151151
GoogleParams(
152152
thinkingConfig = thinkingConfig,
153-
maxTokens = 256
153+
maxTokens = 512
154+
)
155+
}
156+
157+
else -> LLMParams(maxTokens = 256)
158+
}
159+
}
160+
161+
private fun createNoReasoningParams(model: LLModel): LLMParams {
162+
return when (model.provider) {
163+
is LLMProvider.Anthropic -> AnthropicParams(
164+
thinking = AnthropicThinking.Disabled()
165+
)
166+
167+
is LLMProvider.OpenAI -> OpenAIResponsesParams(
168+
maxTokens = 256
169+
)
170+
171+
is LLMProvider.Google -> {
172+
val thinkingConfig = if (model.id == GoogleModels.Gemini3_Pro_Preview.id) {
173+
GoogleThinkingConfig(
174+
includeThoughts = false,
175+
)
176+
} else {
177+
GoogleThinkingConfig(
178+
includeThoughts = false,
179+
)
180+
}
181+
GoogleParams(
182+
thinkingConfig = thinkingConfig,
183+
// Slightly higher limit to avoid truncation in multi-step reasoning tests
184+
maxTokens = 512
154185
)
155186
}
156187

@@ -161,15 +192,16 @@ abstract class ExecutorIntegrationTestBase {
161192
open fun integration_testExecute(model: LLModel) = runTest(timeout = 300.seconds) {
162193
Models.assumeAvailable(model.provider)
163194

164-
val prompt = Prompt.build("test-prompt") {
195+
val prompt = Prompt.build("test-prompt", createNoReasoningParams(model)) {
165196
system("You are a helpful assistant.")
166197
user("What is the capital of France?")
167198
}
168199

169200
withRetry(times = 3, testName = "integration_testExecute[${model.id}]") {
170201
getExecutor(model).execute(prompt, model) shouldNotBeNull {
171202
shouldNotBeEmpty()
172-
with(shouldForAny { it is Message.Assistant }.first()) {
203+
shouldForAny { it is Message.Assistant }
204+
with(filterIsInstance<Message.Assistant>().first()) {
173205
content.lowercase().shouldContain("paris")
174206
with(metaInfo) {
175207
inputTokensCount.shouldNotBeNull()
@@ -684,9 +716,8 @@ abstract class ExecutorIntegrationTestBase {
684716
}
685717

686718
withRetry {
687-
with(getExecutor(model).execute(prompt, model).single()) {
719+
with(getExecutor(model).execute(prompt, model).first { it.content.isNotBlank() }) {
688720
checkExecutorMediaResponse(this)
689-
content.shouldContain("image")
690721
}
691722
}
692723
}
@@ -701,7 +732,7 @@ abstract class ExecutorIntegrationTestBase {
701732
)
702733

703734
val imageUrl =
704-
"https://upload.wikimedia.org/wikipedia/commons/thumb/c/c3/Python-logo-notext.svg/1200px-Python-logo-notext.svg.png"
735+
"https://upload.wikimedia.org/wikipedia/commons/thumb/6/6a/PNG_Test.png/200px-PNG_Test.png"
705736

706737
val prompt = prompt("url-based-attachments-test") {
707738
system("You are a helpful assistant that can analyze images.")
@@ -719,8 +750,8 @@ abstract class ExecutorIntegrationTestBase {
719750
with(getExecutor(model).execute(prompt, model).single()) {
720751
checkExecutorMediaResponse(this)
721752
content.lowercase()
722-
.shouldContain("python")
723-
.shouldContain("logo")
753+
.shouldContain("test image")
754+
.shouldContain("hat")
724755
}
725756
}
726757
}
@@ -921,13 +952,16 @@ abstract class ExecutorIntegrationTestBase {
921952
open fun integration_testMultipleSystemMessages(model: LLModel) = runTest(timeout = 300.seconds) {
922953
Models.assumeAvailable(model.provider)
923954

924-
val prompt = prompt("multiple-system-messages-test") {
955+
val prompt = prompt("multiple-system-messages-test", createNoReasoningParams(model)) {
925956
system("You are a helpful assistant.")
926957
user("Hi")
927958
system("You can handle multiple system messages.")
928959
user("Respond with a short message.")
929960
}
930-
getLLMClient(model).execute(prompt, model).single().role shouldBe Message.Role.Assistant
961+
with(getLLMClient(model).execute(prompt, model)) {
962+
shouldNotBeEmpty()
963+
shouldForAny { it is Message.Assistant }
964+
}
931965
}
932966

933967
open fun integration_testSingleMessageModeration(model: LLModel) = runTest(timeout = 300.seconds) {
@@ -1052,7 +1086,12 @@ abstract class ExecutorIntegrationTestBase {
10521086
getLLMClient(model).execute(prompt, model) shouldNotBeNull {
10531087
shouldNotBeEmpty()
10541088
withClue("No reasoning messages found") { shouldForAny { it is Message.Reasoning } }
1055-
assertResponseContainsReasoning(this)
1089+
// Some Google models aren't providing meta info
1090+
if (model.provider == LLMProvider.Google) {
1091+
assertResponseContainsReasoning(this, false)
1092+
} else {
1093+
assertResponseContainsReasoning(this)
1094+
}
10561095
}
10571096
}
10581097
}
@@ -1115,7 +1154,7 @@ abstract class ExecutorIntegrationTestBase {
11151154
withRetry(times = 3, testName = "integration_testReasoningMultiStep_Turn2[${model.id}]") {
11161155
val response2 = client.execute(prompt2, model)
11171156
response2.shouldNotBeEmpty()
1118-
val answer = response2.filterIsInstance<Message.Assistant>().first().content
1157+
val answer = response2.firstOrNull { it is Message.Assistant || it is Message.Reasoning }?.content
11191158
answer.shouldContain("20")
11201159
}
11211160
}

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

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -63,7 +63,7 @@ object MediaTestScenarios {
6363
val models = listOf(
6464
AnthropicModels.Sonnet_4_5,
6565
GoogleModels.Gemini2_5Pro,
66-
OpenAIModels.Chat.GPT5_2,
66+
OpenAIModels.Chat.GPT5_1,
6767
)
6868

6969
@JvmStatic

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

Lines changed: 7 additions & 5 deletions
Original file line numberDiff line numberDiff line change
@@ -50,16 +50,18 @@ object TestUtils {
5050
false
5151
}
5252

53-
fun assertResponseContainsReasoning(response: List<Message>) {
53+
fun assertResponseContainsReasoning(response: List<Message>, checkMetaInfo: Boolean = true) {
5454
with(response) {
5555
shouldNotBeEmpty()
5656
shouldForAny { it is Message.Reasoning }
5757
with(first { it is Message.Reasoning } as Message.Reasoning) {
5858
content.shouldNotBeEmpty()
59-
with(metaInfo) {
60-
inputTokensCount.shouldNotBeNull { shouldBeGreaterThan(0) }
61-
outputTokensCount.shouldNotBeNull { shouldBeGreaterThan(0) }
62-
totalTokensCount.shouldNotBeNull { shouldBeGreaterThan(0) }
59+
if (checkMetaInfo) {
60+
metaInfo.shouldNotBeNull {
61+
inputTokensCount.shouldNotBeNull { shouldBeGreaterThan(0) }
62+
outputTokensCount.shouldNotBeNull { shouldBeGreaterThan(0) }
63+
totalTokensCount.shouldNotBeNull { shouldBeGreaterThan(0) }
64+
}
6365
}
6466
}
6567
}

‎prompt/prompt-executor/prompt-executor-clients/prompt-executor-google-client/src/commonMain/kotlin/ai/koog/prompt/executor/clients/google/GoogleLLMClient.kt‎

Lines changed: 17 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -192,7 +192,7 @@ public open class GoogleLLMClient(
192192
outputTokensCount = it.candidatesTokenCount,
193193
)
194194
}
195-
response.candidates.firstOrNull()?.let { candidate ->
195+
response.candidates?.firstOrNull()?.let { candidate ->
196196
candidate.content?.parts?.forEach { part ->
197197
when (part) {
198198
is GooglePart.FunctionCall -> emitToolCall(
@@ -202,6 +202,7 @@ public open class GoogleLLMClient(
202202
)
203203

204204
is GooglePart.Text -> emitAppend(part.text)
205+
205206
else -> Unit
206207
}
207208
}
@@ -267,7 +268,7 @@ public open class GoogleLLMClient(
267268
}.let { response ->
268269

269270
// https://discuss.ai.google.dev/t/gemini-2-5-pro-with-empty-response-text/81175/219
270-
if (response.candidates.isNotEmpty() && response.candidates.all { it.content?.parts?.isEmpty() == true }) {
271+
if (response.candidates?.isNotEmpty() == true && response.candidates.all { it.content?.parts?.isEmpty() == true }) {
271272
logger.warn { "Content `parts` field is missing in the response from GoogleAI API: $response" }
272273
}
273274

@@ -425,8 +426,11 @@ public open class GoogleLLMClient(
425426

426427
val functionCallingConfig = when (val toolChoice = googleParams.toolChoice) {
427428
LLMParams.ToolChoice.Auto -> GoogleFunctionCallingConfig(GoogleFunctionCallingMode.AUTO)
429+
428430
LLMParams.ToolChoice.None -> GoogleFunctionCallingConfig(GoogleFunctionCallingMode.NONE)
431+
429432
LLMParams.ToolChoice.Required -> GoogleFunctionCallingConfig(GoogleFunctionCallingMode.ANY)
433+
430434
is LLMParams.ToolChoice.Named -> {
431435
GoogleFunctionCallingConfig(
432436
GoogleFunctionCallingMode.ANY,
@@ -461,6 +465,7 @@ public open class GoogleLLMClient(
461465

462466
val blob: GoogleData.Blob = when (val content = part.content) {
463467
is AttachmentContent.Binary -> GoogleData.Blob(part.mimeType, content.asBytes())
468+
464469
else -> throw IllegalArgumentException(
465470
"Unsupported image attachment content: ${content::class}"
466471
)
@@ -476,6 +481,7 @@ public open class GoogleLLMClient(
476481

477482
val blob: GoogleData.Blob = when (val content = part.content) {
478483
is AttachmentContent.Binary -> GoogleData.Blob(part.mimeType, content.asBytes())
484+
479485
else -> throw IllegalArgumentException(
480486
"Unsupported audio attachment content: ${content::class}"
481487
)
@@ -491,6 +497,7 @@ public open class GoogleLLMClient(
491497

492498
val blob: GoogleData.Blob = when (val content = part.content) {
493499
is AttachmentContent.Binary -> GoogleData.Blob(part.mimeType, content.asBytes())
500+
494501
else -> throw IllegalArgumentException(
495502
"Unsupported file attachment content: ${content::class}"
496503
)
@@ -506,6 +513,7 @@ public open class GoogleLLMClient(
506513

507514
val blob: GoogleData.Blob = when (val content = part.content) {
508515
is AttachmentContent.Binary -> GoogleData.Blob(part.mimeType, content.asBytes())
516+
509517
else -> throw IllegalArgumentException(
510518
"Unsupported video attachment content: ${content::class}"
511519
)
@@ -532,9 +540,13 @@ public open class GoogleLLMClient(
532540
fun JsonObjectBuilder.putType(type: ToolParameterType) {
533541
when (type) {
534542
ToolParameterType.Boolean -> put("type", "boolean")
543+
535544
ToolParameterType.Float -> put("type", "number")
545+
536546
ToolParameterType.Integer -> put("type", "integer")
547+
537548
ToolParameterType.String -> put("type", "string")
549+
538550
ToolParameterType.Null -> put("type", "null")
539551

540552
is ToolParameterType.Enum -> {
@@ -671,6 +683,7 @@ public open class GoogleLLMClient(
671683
return when {
672684
// Fix the situation when the model decides to both call tools and talk
673685
responses.any { it is Message.Tool.Call } -> responses.filterIsInstance<Message.Tool.Call>()
686+
674687
// If no messages where returned, return an empty message and check finishReason
675688
responses.isEmpty() -> listOf(
676689
Message.Assistant(
@@ -679,6 +692,7 @@ public open class GoogleLLMClient(
679692
metaInfo = metaInfo
680693
)
681694
)
695+
682696
// Just return responses
683697
else -> responses
684698
}
@@ -691,7 +705,7 @@ public open class GoogleLLMClient(
691705
* @return A list of choices, where each choice is a list of response messages
692706
*/
693707
private fun processGoogleResponse(response: GoogleResponse): List<List<Message.Response>> {
694-
if (response.candidates.isEmpty()) {
708+
if (response.candidates?.isEmpty() ?: true) {
695709
logger.error { "Empty candidates in Google API response" }
696710
throw LLMClientException(clientName, "Empty candidates in Google API response")
697711
}

‎prompt/prompt-executor/prompt-executor-clients/prompt-executor-google-client/src/commonMain/kotlin/ai/koog/prompt/executor/clients/google/models/GoogleGenerateContent.kt‎

Lines changed: 4 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -1,5 +1,8 @@
11
package ai.koog.prompt.executor.clients.google.models
22

3+
import ai.koog.prompt.executor.clients.google.models.GoogleFunctionCallingMode.ANY
4+
import ai.koog.prompt.executor.clients.google.models.GoogleFunctionCallingMode.AUTO
5+
import ai.koog.prompt.executor.clients.google.models.GoogleFunctionCallingMode.NONE
36
import ai.koog.prompt.executor.clients.serialization.AdditionalPropertiesFlatteningSerializer
47
import ai.koog.utils.serializers.ByteArrayAsBase64Serializer
58
import kotlinx.serialization.DeserializationStrategy
@@ -405,7 +408,7 @@ internal enum class GoogleFunctionCallingMode {
405408
*/
406409
@Serializable
407410
internal class GoogleResponse(
408-
val candidates: List<GoogleCandidate>,
411+
val candidates: List<GoogleCandidate>? = null,
409412
val promptFeedback: GooglePromptFeedback? = null,
410413
val usageMetadata: GoogleUsageMetadata? = null,
411414
val modelVersion: String? = null,

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