README: Missing critical steps for local testing with Agents Playground (Copilot Studio Node.js sample)

Description

Problem

The README's "Testing" section for the Copilot Studio Node.js sample agent only says:

npm run test-tool

I followed all the steps documented in the README — installed dependencies, configured .env, set up Copilot Studio, added CopilotStudio.Copilots.Invoke API permission, granted user access, and configured agentic authentication — but local testing with the Agents Playground fails with:

AADSTS82008: All agentic applications requesting a token exchange token must include the fmipath parameter on the token request.

The playground shows: "Error communicating with Copilot Studio: Failed to acquire token for Copilot Studio. User may need to sign in."

Expected behavior

In agent playground it should give auth popup and then start responding.

SDK Version

a365 v1.1.94-preview @microsoft/agents-hosting ^1.2.2

Language/Runtime

Node.js 20.20.0

OS

Windows

How to Reproduce

Steps to Reproduce

1. Clone the repo and navigate to copilot-studio-node/sample-agent

2. Install dependencies:

   PS> npm install
   found 0 vulnerabilities
   

3. Initialize config:

   PS> a365 config init
   Subscription ID: 5448407e-xxxx-xxxx-xxxx-xxxxxxxxxxxx (M365CPI159633580 - Subscription)
   Tenant ID: ea4b3b3d-xxxx-xxxx-xxxx-xxxxxxxxxxxx
   

4. Configure .env with Copilot Studio environment ID, agent identifier, and service connection credentials (clientId, clientSecret, tenantId)(service connection credentials filled by a365 config init also added CopilotStudio.Copilots.Invoke permission in Azure Portal and Granted the admin permission as documented in README ,Copilot Studio agent is shared within the organization)

5. Run full setup:

   PS> a365 setup all
   Starting setup all 
   Agent 365 Setup
   Running all setup steps..
   

6. Run local test:

   PS> npm run test-tool
   

7. Send any message (e.g., "hi") in the Agents Playground at localhost:56150

Expected: Agent forwards message to Copilot Studio and returns a response.

Actual: Returns AADSTS82008 error. The token request sends fmi_path= (empty) because the agentic identity was never provisioned. The AgenticAppId in a365.generated.config.json is null.

Output

No response

Screenshots

No response

Code of Conduct

• I agree to follow the Microsoft Open Source Code of Conduct.

Start in the README's Testing section for copilot-studio-node/sample-agent and review the setup steps around a365 config init, a365 setup all, and a365.generated.config.json. Run npm run test-tool to reproduce the empty AgenticAppId and AADSTS82008 error. Done means the README documents the required agentic identity provisioning and local testing flow so the Agents Playground can authenticate and respond.