> ## Documentation Index
> Fetch the complete documentation index at: https://docs.appsignal.com/llms.txt
> Use this file to discover all available pages before exploring further.

# AppSignal for Ruby: Command-line tools

The [AppSignal Ruby gem][gem] ships with several command-line tools. These
tools make it easier to install AppSignal in an application, send deploy
notifications and diagnose any problems with the installation.

## Install

A command-line tool to install AppSignal in your Ruby application.

Read more about the [appsignal install][cli-install] command-line tool.

## Diagnose

A self-diagnostic tool that can be used to debug the installation and configuration of your AppSignal integration. It is one of the first tools that our support team requests you to run when debugging an issue.

Read more about the [appsignal diagnose][cli-diagnose] command-line tool.

## Demo

A command-line tool that sends demonstration samples to AppSignal. When the tool is run, it sends an error and performance sample from your machine to AppSignal.

Read more about the [appsignal demo][cli-demo] command-line tool.

[gem]: https://github.com/appsignal/appsignal-ruby

[cli-install]: /ruby/command-line/install.html

[cli-diagnose]: /ruby/command-line/diagnose.html

[cli-demo]: /ruby/command-line/demo.html