Xojo Plugin

Automatic JS AI Tool Calling with Supporting JS Sources

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Demonstrates an automatic JavaScript tool function calling where JavaScript code can be loaded from additional scripts that don't include a tool registry. Xojo Plugin

Dim success As Boolean
success = False

// ----------------------------------------------------------------------------------
// 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.
Dim sbJs As New Chilkat.StringBuilder
success = sbJs.LoadFile("qa_data/js_tools/toolset_5.js","utf-8")
If (success = False) Then
    System.DebugLog(sbJs.LastErrorText)
    Return
End If

Dim ai As New Chilkat.Ai

// Additional JavaScript code can be loaded into the AI object's internal JS engine
// by calling RegisterJsTools with evalOnly = True.
Dim sbExtraJs As New Chilkat.StringBuilder
success = sbExtraJs.Append("function getOrderTotal({ order_id }) { return 149.95; }")

// When evalOnly equals True, it tells Chilkat that no toolRegistry will be present.
// The purpose for doing the eval is to add function definitions to the global namespace.
// The value passed for allowAllKeyword is meaningless (not used) when evalOnly = True.
Dim evalOnly As Boolean
evalOnly = True
Dim allowAllKeyword As Boolean
allowAllKeyword = True
success = ai.RegisterJsTools(sbExtraJs,evalOnly,allowAllKeyword)

// Register the tools that will be made available to the AI.
evalOnly = False
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_4"
Dim sysMessage As String
sysMessage = "You are a helpful business assistant"
Dim devMessage As String
devMessage = "Respond only with a information generated by a tool."
success = ai.NewConvo(conversation_name,sysMessage,devMessage)

// Provide inputs
success = ai.InputAddText("What is the total for order A123?")

// 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 = False) Then
    System.DebugLog(ai.LastErrorText)
    Return
End If

// Get the AI response.
Dim sbResponse As New Chilkat.StringBuilder
success = ai.GetOutputTextSb(sbResponse)
System.DebugLog(sbResponse.GetAsString())