How to Create a Custom Skill

Create a Custom Skill
on the Amazon Echo
Emily Lam, DeveloperWeek 2/13/2017

About Me
u  Emily Lam
u  UCLA: Linguistics and specialization in Computing
u  Currently: Frontend developer at Lieberman Software
u  Skills published: 4
u  Hackathons won using Alexa: 3
u  Money 20/20 WorldPay
u  2nd Mojio Connected Car
u  1st GA + IBM Watson Workspace
Twitter: @hongily
https://liebsoft.com

Agenda
u  1. Walk you through how to create a basic trivia skill
u  2. Discuss In-depth Topics
u  Built-in and Custom slots
u  Account linking
u  SSML Tags

Sign into https://developer.amazon.com/
This is the same account that you use to sign into www.amazon.com. Don’t have an Amazon account? You can create one
after you click “Sign In”.
https://developer.amazon.com/

Click on Alexa

Click on Get Started > under the Alexa Skills Kit

Click on “Add a New Skill”

Skills Information
u  Skill Type
u  Custom Interaction Model: Gives you the most control over the user’s experience
and is the most flexible kind of skill you can build.
u  Smart Home Skill API: Great for building a skill with smart home devices
u  Flash Briefing Skill API: Easy for creating flash briefings/RSS feed
u  Language
u  You can choose English (U.S.), English (U.K.), or German

Skills Information
u  Name
u  Appears as the title in the Alexa app. Ex. Morning Dose App Name
u  Must be between 2-50 characters.
u  Invocation Name
u  The name you use to tell Alexa to open the skill. Ex. Morning Dose. See
Invocation Guidelines.
u  Global Fields
u  Audio Player for music related skills ie. Spotify

Interaction Model
u  Intent Schema: A JSON structure which declares the set of intents your service
can accept and process.

Interaction Model
u  Intent Schema: A JSON structure which declares the set of intents your service
can accept and process.
u  https://github.com/alexa/skill-sample-nodejs-trivia/tree/master/
speechAssets

Interaction Model
u  Custom Slots: Custom slot types to be referenced by the Intent Schema and
Sample Utterances
u  Sample Utterances: What you say to Alexa to trigger an intent

Configuration
Select AWS Lambda ARN (Amazon Resource Name) and then North America.

Go to https://aws.amazon.com
Sign in to the Console
https://aws.amazon.com/

Sign In or Create an AWS Account

Select US East (N. Virginia) for US skills and EU (Ireland) for UK/DE skills
These are the only two regions currently supported for Alexa skill development on AWS Lambda

Type in Lambda and select the Lambda option

Select Create a Lambda function

Type Alexa in the filter and then select
alexa-skill-kit-sdk-triviaskill

Click on the gray square

Select Alexa Skills Kit and then Next

Type in a function name
Function name must contain only letters, numbers, hyphens, or underscores.

Click on the dropdown menu and select Create a custom role
https://aws.amazon.com

Click on “Allow”

Click on “Next”

Click on “Create function”

Click on “Test” and look at the execution result

Click on “Actions and then “Export function”

Click on “Download deployment package”

Edit index.js and question.js

Select the two files + node_modules and compress the 3 items.

Upload Archive.zip

Click Save and test

Copy the ARN

Paste the ARN in your skill at https://developer.amazon.com and
the select “Next”
https://developer.amazon.com

Select a Category and Subcategory if necessary
Then, write in testing instructions.

Write a short description (160 character max.) about the skill

Write a full description that will appear in the skill’s detail card

Write up to three example phrases that appear as aids for users
when they see your skill’s detail card.

Answer privacy related questions and export compliance

Click “Submit for Certification” and you are done!

In-depth Topics
u  Built-in and Custom slots
u  Account linking
u  SSML Tags

Built-in Slots and Custom Slots
Slots are arguments for intents.
A built-in slot type such as AMAZON.NUMBER converts numeric words (“five”) into
digits (such as “5”).
You can view all the built-in slots at:
https://developer.amazon.com/public/solutions/alexa/alexa-skills-kit/docs/
built-in-intent-ref/slot-type-reference
A custom slot type is used for items that are not covered by Amazon’s built-in set
of types.

Built-in Slots and Custom Slots
"intents": [
{
"intent": "ReportIntent",
"slots": [
{
"name": "Incident",
"type": "LIST_OF_INCIDENTS"
}]
}
You define the slot type in the Intent Schema.

Custom Slots
You create a slot type (ie LIST_OF_INCIDENTS) and then you write the
values.

Custom Slots
You reference the intent and slot name in the Sample Utterances

Custom Slots
You can use the value of the custom slot in your lambda code.

Account linking
You can link an external account to the Alexa.

Account linking
You create an application and link it to Alexa through the Alexa app.

Account linking
The client id and client secret are retrieved from the external account

Account linking
Token: 59010bf8-4a29-4f59-8bd7-3a59ac383781
Redirects back to https://pitangui.amazon.com/api/skill/link/
M1PJIQE7PVNV1

Account linking
A privacy policy is required for account linking. You also have to
disclose if you are collect users' personal information (ie email,
password, etc)

SSML Tags
Speech Synthesis Markup Language provides additional control over how Alexa
generates the speech text in your response.
Examples:
<say-as interpret-as="cardinal">12345</say-as> sounds like twelve thousand
three hundred forty five
<say-as interpret-as=”ordinal">12345</say-as> sounds like twelve thousand
three hundred forty fifth
<say-as interpret-as="spell-out">12345</say-as> sounds like one two three
four five
Reference:
https://developer.amazon.com/public/solutions/alexa/alexa-skills-kit/docs/
speech-synthesis-markup-language-ssml-reference#supported-ssml-tags

Thank you!
Questions?
Tweet me @hongily
Email me at emily@emilytlam.com

How to Create a Custom Skill

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