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Hi, and welcome to this AI in C#

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video on the Agent Framework Toolkit, which is

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a series of NuGet packages I've made to

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make Agent Framework easier to work with.

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In the previous video, we saw about easier

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agents.

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Now we're going to look at easier tools.

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So, if we look at our sample repository

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here, we have something called Agent Framework Toolkit,

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easier tools.

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And all we need to do when we

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work with tools is, of course, that we

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need to get a list of tools out.

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And if we were to do it this,

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the regular way, and we had a set

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of tools like this, where we have 10

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different tools to do file system work, like

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getting folders, creating folders, moving files and stuff,

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we would end up writing some code like

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this.

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So we would new up our objects, and

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then we would use the AI Function Factory

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Create in order to take the various delegates

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here, and put in a name and a

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description.

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We could, of course, begin to use reflection

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here in order to do this, but then

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it will be more difficult to get some

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good names and descriptions in.

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So, if we instal the Agent Framework Toolkit,

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all we need to do is make a

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new instance of AIToolsFactory, or if you use

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dependency injection, builder.services.AIToolsFactory, and then you

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just say GetTools.

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And GetTools have two overloads.

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You can either get it by types, or

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by instances.

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So if you have a tool like this,

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where we don't have a constructor, our parameterless

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constructor, it is possible to just get the

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tools by type of object, and what it

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does is it will go in here, and

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then will look for attributes.

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So these are attributes you can put on

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your tools, where you can write the name

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and the description.

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And both name and description are optional, so

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if you just want to quickly have them,

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you can just put AITool, and it will

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use this as the name.

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But if you want to do it right,

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you put in a name and a description

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as well.

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So all I've done to this class is

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I've decorated the 10 tools with the AITool

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attribute, and then everything just comes out as

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tools.

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Had my file system tools here needed things

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in the constructor via dependency injection, I would

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need to new up the instance instead, or

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get a dependency injection version, and then I

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can just put in the instance instead.

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And if I had multiple objects, so for

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example, if the AITool factory itself had some

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tools, I could put in just multiple objects

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for various different tool classes you had.

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So much, much more simpler with a one

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-liner plus putting in these attributes so the

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data is actually closest to the real data

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instead of putting in multiple places.

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But we can go beyond that because this

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can also work with MCP tools, in that

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if you add one more NuGet package, agent

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-framework-toolkit.tools.modelcontextprotocol, it will

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now be able to work with remote tools

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and local tools.

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So that would be that you simply say

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AITools factory, and then you get two extension

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methods on it.

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I didn't want to put it in the

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raw, so you wouldn't have a dependency on

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MCP unless you already used it.

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So with this way, we can simply get

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tools from either remote or a local.

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And if you want to get it from

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a remote, we would need to give a

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remote MCP URL or the entire transport options

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if you want to do something more advanced.

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But in my case, it's a MCP server

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that I do not have anything that needs

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to be done extra.

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But if I had, for example, an API

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key, I could give it in a dictionary.

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Or if I had some local tools, I

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would just simply need to go in and

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give my command.

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In many cases, it's just npx, and then

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the tool we wanted to do as arguments.

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In this case, it's Playwright.

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So if we set some breakpoints here, let's

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set it up here so we can see

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it.

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So if we wanted the tools, right now

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we have the tools by making them manually.

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But if we want to just get them

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via 18 Framework Toolkit, we can get them

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in exactly the same manner, either as type

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or instance, same deal.

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And then if we wanted MCP tools, we

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could simply use this extra extension method in

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order to get the tools.

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So it now remotely went up to the

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remote MCP and found the tools and the

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information about them.

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And then if we want to do local

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tools using npx, we would get those tools

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back, in this case all the different tools

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from Playwright.

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And then it's just using the tools, in

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my case the file tools, and I could

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say create 10 files with random fruit names.

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And I would end up in my test

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class with this.

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That will begin to make some tools that

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are called GetRootFolders and so on, create the

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files, end up with 10 files in my

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local tool.

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So that's everything there is to it.

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Don't sit and do this by yourself when

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you can do it so much easier with

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the 18 Framework Toolkit like this.

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So we're done.

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See you in the next one.