Swift

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. Swift

func chilkatTest() {
    var success: Bool = 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.
    let sbJs = CkoStringBuilder()!
    success = sbJs.loadFile(path: "qa_data/js_tools/toolset_5.js", charset: "utf-8")
    if success == false {
        print("\(sbJs.lastErrorText!)")
        return
    }

    let ai = CkoAi()!

    //  Additional JavaScript code can be loaded into the AI object's internal JS engine
    //  by calling RegisterJsTools with evalOnly = true.
    let sbExtraJs = CkoStringBuilder()!
    sbExtraJs.append(value: "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.
    var evalOnly: Bool = true
    var allowAllKeyword: Bool = true
    ai.registerJsTools(sb: sbExtraJs, evalOnly: evalOnly, allowAllKeyword: allowAllKeyword)

    //  Register the tools that will be made available to the AI.
    evalOnly = false
    ai.registerJsTools(sb: sbJs, evalOnly: evalOnly, allowAllKeyword: 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-5.6-luna"

    //  Tool function calling must always occur within a conversation.
    var conversation_name: String? = "convo_4"
    var sysMessage: String? = "You are a helpful business assistant"
    var devMessage: String? = "Respond only with a information generated by a tool."
    ai.newConvo(name: conversation_name, sysMsg: sysMessage, devMsg: devMessage)

    //  Provide inputs
    ai.inputAddText(text: "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(outputType: "text")
    if success == false {
        print("\(ai.lastErrorText!)")
        return
    }

    //  Get the AI response.
    let sbResponse = CkoStringBuilder()!
    ai.getOutputTextSb(sb: sbResponse)
    print("\(sbResponse.getAsString()!)")

}

JavaScript

// 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) {
  // Here we are calling another function that is defined in a support (additional) JavaScript source
  // that was loaded in previous call to Ai.RegisterJsTools with evalOnly = true.
  return getOrderTotal(arg);
}

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";