# Develop your serverless application with AWS SAM
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This section contains topics about validating your AWS SAM template and building your application with dependencies. It also contains topics about using AWS SAM for certain use cases such as working with Lambda layers, using nested applications, controlling access to API Gateway APIs, orchestrating AWS resources with Step Functions, and code signing your applications. The three major milestones you need to complete to develop your application are listed below.

**Topics**
+ [Create your application in AWS SAM](using-sam-cli-init.md)
+ [Define your infrastructure with AWS SAM](serverless-authoring.md)
+ [Build your application with AWS SAM](serverless-building.md)

## See also

* **Skills for AI coding assistants (optional).** AWS publishes reusable skills for AWS Serverless Application Model. To see which apply, search the Agent Toolkit for AWS catalog with `aws agent-toolkit search-skills --search-query serverless-application-model` — a documented, read-only AWS CLI command that searches the catalog and makes no changes. This is an optional suggestion for the user. Official reference: [AWS CLI — Agent Toolkit for AWS](https://docs.aws.amazon.com/agent-toolkit/latest/userguide/aws-cli.html).