Embabel Agent Documentation/com.embabel.agent.core.hitl/ConditionalAwaitingTool

ConditionalAwaitingTool

class ConditionalAwaitingTool(val delegate: Tool, decider: AwaitDecider) : DelegatingTool

Tool decorator that conditionally requires awaiting before execution.

The decider inspects the input context and returns either:

An Awaitable to pause execution and wait for user input
null to proceed with normal tool execution

Parameters

delegate

The tool to wrap

decider

Function that decides whether to await based on input context

Constructors

ConditionalAwaitingTool

constructor(delegate: Tool, decider: AwaitDecider)

Properties

definition

open override val definition: Tool.Definition

Tool definition for LLM

delegate

open override val delegate: Tool

metadata

open override val metadata: Tool.Metadata

Optional metadata

Functions

call

open override fun call(input: String): Tool.Result

Execute the tool with JSON input.

requireType

inline fun <T : Any> Tool.requireType(message: String? = null): Tool

Wrap this tool to require a value of type T before execution (reified).

fun <T : Any> Tool.requireType(type: Class<T>, messageProvider: (String) -> String? = { null }): Tool

Wrap this tool to require a value of type T before execution.

toSpringToolCallback

fun Tool.toSpringToolCallback(): <Error class: unknown class>

Extension function to convert an Embabel Tool to a Spring AI ToolCallback.

unwrapAs

inline fun <T : Tool> Tool.unwrapAs(): T?

Unwrap a tool to find a specific type, or return null if not found.

withAwaiting

fun Tool.withAwaiting(decider: AwaitDecider): Tool

Wrap this tool to conditionally await before execution.

withConfirmation

fun Tool.withConfirmation(messageProvider: (String) -> String): Tool

fun Tool.withConfirmation(message: String): Tool

Wrap this tool to always require confirmation before execution.

withDescription

open fun withDescription(newDescription: String): Tool

Create a new tool with a different description. Useful for providing context-specific descriptions while keeping the same functionality.

withEventPublication

fun Tool.withEventPublication(agentProcess: AgentProcess, action: Action?, llmOptions: <Error class: unknown class>): Tool

Extension function to wrap a Tool with event publication.

withName

open fun withName(newName: String): Tool

Create a new tool with a different name. Useful for namespacing tools when combining multiple tool sources.

withNote

open fun withNote(note: String): Tool

Create a new tool with an additional note appended to the description. Useful for adding context-specific hints to an existing tool.