Running the solution

Install

npm i

Run the sample

npm run build

Test the sample

1. Make sure your server is up and running npm run build.

2. To test the server works as intended run the inspector tool like so:

npm run inspect

Type y to proceed if prompted, if running in a Codespace, make sure to click "make public".

You should see a JSON output like so, i.e showing all your created tools:

  {
  "tools": [
    {
      "name": "add",
      "inputSchema": {
        "type": "object",
        "properties": {
          "a": {
            "type": "number"
          },
          "b": {
            "type": "number"
          }
        },
        "required": [
          "a",
          "b"
        ],
        "additionalProperties": false,
        "$schema": "http://json-schema.org/draft-07/schema#"
      }
    },
    {
      "name": "subtract",
      "inputSchema": {
        "type": "object",
        "properties": {
          "a": {
            "type": "number"
          },
          "b": {
            "type": "number"
          }
        },
        "required": [
          "a",
          "b"
        ],
        "additionalProperties": false,
        "$schema": "http://json-schema.org/draft-07/schema#"
      }
    },
    {
      "name": "divide",
      "inputSchema": {
        "type": "object",
        "properties": {
          "a": {
            "type": "number"
          },
          "b": {
            "type": "number"
          }
        },
        "required": [
          "a",
          "b"
        ],
        "additionalProperties": false,
        "$schema": "http://json-schema.org/draft-07/schema#"
      }
    },
    {
      "name": "multiply",
      "inputSchema": {
        "type": "object",
        "properties": {
          "a": {
            "type": "number"
          },
          "b": {
            "type": "number"
          }
        },
        "required": [
          "a",
          "b"
        ],
        "additionalProperties": false,
        "$schema": "http://json-schema.org/draft-07/schema#"
      }
    }
  ]
}

1. Run a tool with a command like so:

```sh

npx @modelcontextprotocol/inspector --cli node build/index.js --method tools/call --tool-name add --tool-arg a=1 --tool-arg b=3
```

This command calls the tool `add` with arguments `a=1` and `b=3`. 

You should see a response like so:

```json
"content": [
    {
    "type": "text",
    "text": "4"
    }
  ]
}
```

Great, everything is working as intended.

1. Let's ensure we see all resources too:

```sh

npx @modelcontextprotocol/inspector --cli node build/index.js --method resources/list
```

You should see a response like so:

```json
{
"resources": [
  {
    "uri": "echo://{message}",
    "name": "echo",
    "description": "Echo a message",
    "mimeType": "text/plain"
  },
  {
    "uri": "scrolls://{name}",
    "name": "scrolls",
    "description": "Scrolls resource",
    "mimeType": "text/plain"
  }
 ]

} ```

1. To call the scrolls resource, we can run:

```sh

npm run client
```

It runs the following code in the client to read the resource:

```typescript
let resource = await client.readResource({
  uri: "scrolls://tactics.txt",
});

console.log("Resource contents:", resource.contents);
```

You should see the content from `scrolls/tactics.txt` in the terminal response.