Embabel Agent Documentation/com.embabel.agent.api.tool/Tool

Tool

interface Tool

Framework-agnostic tool that can be invoked by an LLM. Adapters in SPI layer bridge to Spring AI ToolCallback or LangChain4j ToolSpecification/ToolExecutor.

All nested types are scoped within this interface to avoid naming conflicts with framework-specific types (e.g., Spring AI's ToolDefinition, ToolMetadata).

Inheritors

AgenticTool

RenamedTool

ObservabilityTool

OutputTransformingTool

MetadataEnrichedTool

EventPublishingTool

ExceptionSuppressingTool

AgentProcessBindingTool

SpringToolCallbackWrapper

AgentTool

GoalTool

McpAwareGoalTool

Types

Companion

object Companion

Definition

interface Definition

Framework-agnostic tool definition.

Function

fun interface Function

Functional interface for simple tool implementations.

Handler

@FunctionalInterface

fun interface Handler

Java-friendly functional interface for tool implementations. Uses handle method name which is more idiomatic in Java than invoke.

InputSchema

interface InputSchema

Input schema for a tool, supporting both simple and complex parameters.

Metadata

interface Metadata

Optional metadata about a tool's behavior.

Parameter

data class Parameter constructor(val name: String, val type: Tool.ParameterType, val description: String = name, val required: Boolean = true, val enumValues: List<String>? = null)

A single parameter for a tool.

ParameterType

enum ParameterType : Enum<Tool.ParameterType>

Supported parameter types.

Result

sealed interface Result

Result of tool execution with optional artifacts.