Visual Basic 6.0

Automatic JavaScript AI Tool Returning an Object

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Demonstrates an automatic JavaScript tool function that returns an object. Automatic JavaScript tool calls are characterized by:

• Tool function implementations are in JavaScript.
• The JavaScript also provides a tool registry and permissions.
• The JavaScript runs embedded within your application using Chilkat.Js.
• Tool calls are handled entirely within Chilkat. Your application does not need to manually check for function calls in the AI response. Internal to the Ask function, Chilkat will handle function calls by calling your registered JavaScript tools and will send results back to the AI model until the final response is received.

Visual Basic 6.0

Dim success As Long
success = 0

' ----------------------------------------------------------------------------------
' The Javascript file loaded here is shown at the bottom of this page.
' -----------------------------------------------------------------------------------

' In this example, we'll load the Javascript tool functions and registry from a file.
' It doesn't need to come from a file.  It could just as easily be loaded from a string.
Dim sbJs As New ChilkatStringBuilder
success = sbJs.LoadFile("qa_data/js_tools/toolset_2.js","utf-8")
If (success = 0) Then
    Debug.Print sbJs.LastErrorText
    Exit Sub
End If

Dim ai As New ChilkatAi

' Register the tools that will be made available to the AI.
Dim evalOnly As Long
evalOnly = 0
Dim allowAllKeyword As Long
allowAllKeyword = 1
success = ai.RegisterJsTools(sbJs,evalOnly,allowAllKeyword)

' The provider can be "openai", "google", "claude", "grok", "mistral", "custom", etc.
ai.Provider = "openai"
' Use your provider's API key.
ai.ApiKey = "MY_API_KEY"
' Choose a model.
ai.Model = "gpt-5-mini"

' Tool function calling must always occur within a conversation.
Dim conversation_name As String
conversation_name = "convo_weather"
Dim sysMessage As String
sysMessage = "You are a helpful weather forecaster"
Dim devMessage As String
devMessage = "Respond only with a weather forecast generated by a tool."
success = ai.NewConvo(conversation_name,sysMessage,devMessage)

' Provide inputs
success = ai.InputAddText("What's the weather in Chicago?")

' Send inputs, tool functions, etc. and ask for a "text" response.
' If the AI responds with tool calls, Chilkat automatically handles them by calling your JavaScript
' tool functions as directed by the AI, and sending results back to the AI until the final
' response is received.
success = ai.Ask("text")
If (success = 0) Then
    Debug.Print ai.LastErrorText
    Exit Sub
End If

' Get the AI response.
Dim sbResponse As New ChilkatStringBuilder
success = ai.GetOutputTextSb(sbResponse)
Debug.Print sbResponse.GetAsString()