(Delphi ActiveX) Automatic JS AI Tool Calling with Supporting JS Sources

See more AI Examples

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

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

Chilkat for Delphi Downloads Chilkat ActiveX DLL for Delphi Chilkat non-ActiveX DLL for Delphi * The examples here use the ActiveX DLL.

uses
    Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
    Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, Chilkat_TLB;

...

procedure TForm1.Button1Click(Sender: TObject);
var
success: Integer;
sbJs: TChilkatStringBuilder;
ai: TChilkatAi;
sbExtraJs: TChilkatStringBuilder;
evalOnly: Integer;
allowAllKeyword: Integer;
conversation_name: WideString;
sysMessage: WideString;
devMessage: WideString;
sbResponse: TChilkatStringBuilder;

begin
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.
sbJs := TChilkatStringBuilder.Create(Self);
success := sbJs.LoadFile('qa_data/js_tools/toolset_5.js','utf-8');
if (success = 0) then
  begin
    Memo1.Lines.Add(sbJs.LastErrorText);
    Exit;
  end;

ai := TChilkatAi.Create(Self);

// Additional JavaScript code can be loaded into the AI object's internal JS engine
// by calling RegisterJsTools with evalOnly = 1.
sbExtraJs := TChilkatStringBuilder.Create(Self);
sbExtraJs.Append('function getOrderTotal({ order_id }) { return 149.95; }');

// When evalOnly equals 1, 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 = 1.
evalOnly := 1;
allowAllKeyword := 1;
ai.RegisterJsTools(sbExtraJs.ControlInterface,evalOnly,allowAllKeyword);

// Register the tools that will be made available to the AI.
evalOnly := 0;
ai.RegisterJsTools(sbJs.ControlInterface,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.
conversation_name := 'convo_4';
sysMessage := 'You are a helpful business assistant';
devMessage := 'Respond only with a information generated by a tool.';
ai.NewConvo(conversation_name,sysMessage,devMessage);

// Provide inputs
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 = 0) then
  begin
    Memo1.Lines.Add(ai.LastErrorText);
    Exit;
  end;

// Get the AI response.
sbResponse := TChilkatStringBuilder.Create(Self);
ai.GetOutputTextSb(sbResponse.ControlInterface);
Memo1.Lines.Add(sbResponse.GetAsString());
end;

// 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";