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Duration	Level	Prerequisites
5 min	Beginner	Lab 08 complete (push and publish succeeded)

Overview

The portal’s built-in Test pane is the fastest way to confirm the topic works. Click Test, type hello, and the agent replies with the greeting you authored in Lab 07. An alternative CLI-based test path exists via @copilot-studio:copilot-studio-test, but it requires an Azure App Registration that is out of scope for this workshop; the portal Test pane needs no extra setup.

Learning objectives

• Open the Test pane in the Copilot Studio portal.
• Send hello and see the expected reply.
• Identify the CLI-based test alternative and the App Registration prerequisite that gates it.

Exercise 9.1 — Open the Test pane

1. In the Copilot Studio portal, on the HelloWorldAgent edit view, click Test in the top-right corner.
2. The Test pane opens as a side panel with a conversation input box.

Exercise 9.2 — Send “hello” and confirm the reply

1. In the Test pane input box, type:

    hello
   

2. Press Enter.

3. The agent replies with the greeting from your topic:

    Hello, world! I'm a Copilot Studio agent authored from VS Code via the Copilot CLI plugin.
   

Exercise 9.3 — (Optional) Test from the CLI instead

1. The CLI path uses @copilot-studio:copilot-studio-test:

    @copilot-studio:copilot-studio-test Send "hello" to the published agent
   

2. The first invocation of test requires an Azure App Registration configured with the CopilotStudio.Copilots.Invoke delegated permission. Follow SETUP_GUIDE.md Step 5 Option A to set it up.

[!NOTE] clone and push use the LSP binary directly and do not require any App Registration. Only the test sub-agent needs the CopilotStudio.Copilots.Invoke permission because it acts as an OBO (on-behalf-of) caller of the published agent.

Verification Checkpoint

Before proceeding, verify:

• The Test pane is open on the HelloWorldAgent edit view.
• Sending hello produces the greeting reply from your topic.
• The reply text matches the activity: string in HelloWorldAgent/topics/HelloWorld.topic.mcs.yml.

Next Steps

You completed the hello-world walkthrough. Continue to Lab 10 — (Advanced) Add a knowledge source for an optional 15-minute extension that grounds the agent in Microsoft Learn content.