Test Slack App

Help a developer confirm that a Slack app they already built actually works. This is the last step of the build loop, after the slack:create-slack-app skill scaffolds an app and the slack:slack-cli skill runs it.

The approach is simple and safe:

1. Run the app in a developer sandbox: a free, throwaway Slack org for building and testing, never a workspace with real coworkers in it.
2. Read the app's source to learn what it actually listens for.
3. Hand the developer concrete steps to perform in Slack, then help them confirm the app responds.

This is guided manual checking, not an automated test suite: you drive the setup and tell the developer what to type or click, and they confirm what they see. It works best for apps managed by the Slack CLI; there is a best-effort path for plain Bolt apps in Step 2.

Step 1: Set Up a Safe Place to Test

1a. Detect the Slack CLI

Use the slack:slack-cli skill (Step 1: Detect the Slack CLI) to check whether the public Slack CLI is installed and resolve its command name. The fingerprint check, alias fallback, and install instructions all live there; do not duplicate them here. Refer to the resolved command as SLACK_CMD throughout. If the CLI is not installed, guide the developer through that same step to install it, since running the app needs it.