(Tcl) Automatic JavaScript AI Tool Returning a Number

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• 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.

Note: This example requires Chilkat v11.4.0 or greater.

For more information, see https://www.chilkatsoft.com/ai_javascript_tool_function_calling.asp

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load ./chilkat.dll

set 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.
set sbJs [new_CkStringBuilder]

set success [CkStringBuilder_LoadFile $sbJs "qa_data/js_tools/toolset_3.js" "utf-8"]
if {$success == 0} then {
    puts [CkStringBuilder_lastErrorText $sbJs]
    delete_CkStringBuilder $sbJs
    exit
}

set ai [new_CkAi]

# Register the tools that will be made available to the AI.
set evalOnly 0
set allowAllKeyword 1
CkAi_RegisterJsTools $ai $sbJs $evalOnly $allowAllKeyword

# The provider can be "openai", "google", "claude", "grok", "mistral", "custom", etc.
CkAi_put_Provider $ai "openai"
# Use your provider's API key.
CkAi_put_ApiKey $ai "MY_API_KEY"
# Choose a model.
CkAi_put_Model $ai "gpt-5-mini"

# Tool function calling must always occur within a conversation.
set conversation_name "convo_4"
set sysMessage "You are a helpful business assistant"
set devMessage "Respond only with a information generated by a tool."
CkAi_NewConvo $ai $conversation_name $sysMessage $devMessage

# Provide inputs
CkAi_InputAddText $ai "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.
set success [CkAi_Ask $ai "text"]
if {$success == 0} then {
    puts [CkAi_lastErrorText $ai]
    delete_CkStringBuilder $sbJs
    delete_CkAi $ai
    exit
}

# Get the AI response.
set sbResponse [new_CkStringBuilder]

CkAi_GetOutputTextSb $ai $sbResponse
puts [CkStringBuilder_getAsString $sbResponse]

delete_CkStringBuilder $sbJs
delete_CkAi $ai
delete_CkStringBuilder $sbResponse

// The namespace for the AI tool functions in this JavaScript source file.
Example = {};

// Tool functions must have only one argument, which should be an object.
// The function names used here must match the "name" in the toolRegistry below.

Example.get_order_total = function(arg) {
  return 149.95;
}

Example.multiply_numbers = function(arg) {
  return arg.a * arg.b;
}

// The inputSchema.type must ALWAYS be "object".
Example.toolRegistry = [
  {
    name: "get_order_total",
    description: "Calculate total cost of an order",
    parameters: {
      properties: {
        order_id: { type: "string", description: "The order ID" },
      }
    }
  },
  {
    name: "multiply_numbers",
    description: "Multiplies two numbers and returns the product.",
    parameters: {
      properties: {
        a: { type: "number", description: "First number" },
        b: { type: "number", description: "Second number" }
      }
    }
  }
];


Example.toolPermissions = [
	  {
	    name: "all",
	    perm: "sandbox",
	  }
	  		
	];
	
	
// Return the name of this toolset
// This tells Chilkat the namespace of this toolset.
"Example";