4761 Fix nested AI agent tool connection resolution

[ivicac]

Resolve cluster elements recursively so tools nested inside an AI agent
tool (e.g. hubspot_1 inside aiAgent_tool_1) are found by both option and
display-condition facades.

Co-Authored-By: Claude Opus 4.6 (1M context) noreply@anthropic.com

[Copilot]

Pull request overview

This PR fixes resolution of cluster elements nested inside other cluster elements (notably tools nested inside an AI Agent tool) so they can be discovered consistently by facades that rely on cluster-element lookup.

Changes:

• Added recursive nested lookup to ClusterElementMap.getClusterElement(...) so nested cluster elements can be resolved by workflow node name.
• Updated option resolution to include input-parameter evaluation for nested cluster elements (so options can resolve dependencies across nested tools).
• Added unit tests for nested resolution in ClusterElementMap and wired the API module’s test dependency needed for the new test.

Reviewed changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
.../WorkflowNodeParameterFacadeImpl.java	Adjusts cluster element map resolution to traverse nested CLUSTER_ELEMENTS recursively.
.../WorkflowNodeOptionFacadeImpl.java	Recursively aggregates evaluated parameters for nested cluster elements.
.../ClusterElementMapTest.java	Adds tests covering direct and nested cluster element resolution + missing element behavior.
.../ClusterElementMap.java	Implements recursive nested search for cluster elements within cluster element extensions.
.../platform-configuration-api/build.gradle.kts	Adds test-support dependency required by the new API test.

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[marko-kriskovic]

bug in question is fixed. it leads us to the next one :).

When initiating chat and telling it to call the nested tool I get this error:
org.springframework.ai.tool.execution.ToolExecutionException: ExecutionException{entityClass=interface com.bytechef.component.definition.ClusterElementDefinition, errorKey=104, errorMessageArguments=null, inputParameters=ParameterMapImpl{map={toolDescription=helps find hubspot tools, conversationId=n8js0fhtb2po7z05u7sfnsx1ervo07vj, response={responseFormat=TEXT}, userPrompt=Find HubSpot user with ID 757086160081 and return their details (name, email, role, status, and teams if available)., format=SIMPLE, toolName=hubspotTools}}} com.bytechef.exception.ExecutionException: Unsupported cluster element type: com.bytechef.component.ai.agent.tool.AiAgentChatTool$$Lambda/0x000000006f508460
at org.springframework.ai.tool.function.FunctionToolCallback.callMethod(FunctionToolCallback.java:120)
at org.springframework.ai.tool.function.FunctionToolCallback.call(FunctionToolCallback.java:105)
at com.bytechef.component.ai.agent.action.AbstractAiAgentChatAction$2.lambda$call$1(AbstractAiAgentChatAction.java:387)
at com.bytechef.component.ai.agent.action.AbstractAiAgentChatAction$2.observeAndCall(AbstractAiAgentChatAction.java:406)
at com.bytechef.component.ai.agent.action.AbstractAiAgentChatAction$2.call(AbstractAiAgentChatAction.java:387)
at org.springframework.ai.tool.augment.AugmentedToolCallback.call(AugmentedToolCallback.java:112)
at org.springframework.ai.model.tool.DefaultToolCallingManager.lambda$executeToolCall$3(DefaultToolCallingManager.java:228)
at io.micrometer.observation.Observation.observe(Observation.java:634)
Caused by: ExecutionException{entityClass=interface com.bytechef.component.definition.ClusterElementDefinition, errorKey=104, errorMessageArguments=null, inputParameters={toolDescription=helps find hubspot tools, conversationId=n8js0fhtb2po7z05u7sfnsx1ervo07vj, response={responseFormat=TEXT}, userPrompt=Find HubSpot user with ID 757086160081 and return their details (name, email, role, status, and teams if available)., format=SIMPLE, toolName=hubspotTools}} com.bytechef.exception.ExecutionException: ExecutionException{entityClass=interface com.bytechef.component.definition.ClusterElementDefinition, errorKey=104, errorMessageArguments=null, inputParameters=ParameterMapImpl{map={toolDescription=helps find hubspot tools, conversationId=n8js0fhtb2po7z05u7sfnsx1ervo07vj, response={responseFormat=TEXT}, userPrompt=Find HubSpot user with ID 757086160081 and return their details (name, email, role, status, and teams if available)., format=SIMPLE, toolName=hubspotTools}}} com.bytechef.exception.ExecutionException: Unsupported cluster element type: com.bytechef.component.ai.agent.tool.AiAgentChatTool$$Lambda/0x000000006f508460
at com.bytechef.platform.component.service.ClusterElementDefinitionServiceImpl.doExecuteTool(ClusterElementDefinitionServiceImpl.java:462)
at com.bytechef.platform.component.service.ClusterElementDefinitionServiceImpl.executeTool(ClusterElementDefinitionServiceImpl.java:204)
Caused by: ExecutionException{entityClass=interface com.bytechef.component.definition.ClusterElementDefinition, errorKey=104, errorMessageArguments=null, inputParameters=ParameterMapImpl{map={toolDescription=helps find hubspot tools, conversationId=n8js0fhtb2po7z05u7sfnsx1ervo07vj, response={responseFormat=TEXT}, userPrompt=Find HubSpot user with ID 757086160081 and return their details (name, email, role, status, and teams if available)., format=SIMPLE, toolName=hubspotTools}}} com.bytechef.exception.ExecutionException: Unsupported cluster element type: com.bytechef.component.ai.agent.tool.AiAgentChatTool$$Lambda/0x000000006f508460
at com.bytechef.platform.component.service.ClusterElementDefinitionServiceImpl.doExecuteTool(ClusterElementDefinitionServiceImpl.java:455)

[sonarqubecloud]

Quality Gate passed for 'server'

Issues
4 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud