MR
Mayur Rathi
@mayurrathi
⭐ 40.7k GitHub stars

Azure Communication Common Java

Azure Communication Common Java is an code AI skill with a core value of Azure Communication Services common utilities for Java. It helps developers solve real-world problems in the code domain, boosting efficiency, automating repetitive tasks, and optimizing workflows.

Azure Communication Services common utilities for Java. Use when working with CommunicationTokenCredential, user identifiers, token refresh, or shared authentication across ACS services.

Last verified on: 2026-07-08

Quick Facts

Category code
Works With Claude
Source sickn33/antigravity-awesome-skills
Stars ⭐ 40.7k
Last Verified 2026-07-08
Risk Level High
mkdir -p ./skills/azure-communication-common-java && curl -sfL https://raw.githubusercontent.com/sickn33/antigravity-awesome-skills/main/skills/azure-communication-common-java/SKILL.md -o ./skills/azure-communication-common-java/SKILL.md

Run in terminal / PowerShell. Requires curl (Unix) or PowerShell 5+ (Windows).

Skill Content

# Azure Communication Common (Java)


Shared authentication utilities and data structures for Azure Communication Services.


Installation


xml
<dependency>
    <groupId>com.azure</groupId>
    <artifactId>azure-communication-common</artifactId>
    <version>1.4.0</version>
</dependency>

Key Concepts


| Class | Purpose |

|-------|---------|

| `CommunicationTokenCredential` | Authenticate users with ACS services |

| `CommunicationTokenRefreshOptions` | Configure automatic token refresh |

| `CommunicationUserIdentifier` | Identify ACS users |

| `PhoneNumberIdentifier` | Identify PSTN phone numbers |

| `MicrosoftTeamsUserIdentifier` | Identify Teams users |

| `UnknownIdentifier` | Generic identifier for unknown types |


CommunicationTokenCredential


Static Token (Short-lived Clients)


java
import com.azure.communication.common.CommunicationTokenCredential;

// Simple static token - no refresh
String userToken = "<user-access-token>";
CommunicationTokenCredential credential = new CommunicationTokenCredential(userToken);

// Use with Chat, Calling, etc.
ChatClient chatClient = new ChatClientBuilder()
    .endpoint("https://<resource>.communication.azure.com")
    .credential(credential)
    .buildClient();

Proactive Token Refresh (Long-lived Clients)


java
import com.azure.communication.common.CommunicationTokenRefreshOptions;
import java.util.concurrent.Callable;

// Token refresher callback - called when token is about to expire
Callable<String> tokenRefresher = () -> {
    // Call your server to get a fresh token
    return fetchNewTokenFromServer();
};

// With proactive refresh
CommunicationTokenRefreshOptions refreshOptions = new CommunicationTokenRefreshOptions(tokenRefresher)
    .setRefreshProactively(true)      // Refresh before expiry
    .setInitialToken(currentToken);    // Optional initial token

CommunicationTokenCredential credential = new CommunicationTokenCredential(refreshOptions);

Async Token Refresh


java
import java.util.concurrent.CompletableFuture;

// Async token fetcher
Callable<String> asyncRefresher = () -> {
    CompletableFuture<String> future = fetchTokenAsync();
    return future.get();  // Block until token is available
};

CommunicationTokenRefreshOptions options = new CommunicationTokenRefreshOptions(asyncRefresher)
    .setRefreshProactively(true);

CommunicationTokenCredential credential = new CommunicationTokenCredential(options);

Entra ID (Azure AD) Authentication


java
import com.azure.identity.InteractiveBrowserCredentialBuilder;
import com.azure.communication.common.EntraCommunicationTokenCredentialOptions;
import java.util.Arrays;
import java.util.List;

// For Teams Phone Extensibility
InteractiveBrowserCredential entraCredential = new InteractiveBrowserCredentialBuilder()
    .clientId("<your-client-id>")
    .tenantId("<your-tenant-id>")
    .redirectUrl("<your-redirect-uri>")
    .build();

String resourceEndpoint = "https://<resource>.communication.azure.com";
List<String> scopes = Arrays.asList(
    "https://auth.msft.communication.azure.com/TeamsExtension.ManageCalls"
);

EntraCommunicationTokenCredentialOptions entraOptions = 
    new EntraCommunicationTokenCredentialOptions(entraCredential, resourceEndpoint)
        .setScopes(scopes);

CommunicationTokenCredential credential = new CommunicationTokenCredential(entraOptions);

Communication Identifiers


CommunicationUserIdentifier


java
import com.azure.communication.common.CommunicationUserIdentifier;

// Create identifier for ACS user
CommunicationUserIdentifier user = new CommunicationUserIdentifier("8:acs:resource-id_user-id");

// Get raw ID
String rawId = user.getId();

PhoneNumberIdentifier


java
import com.azure.communication.common.PhoneNumberIdentifier;

// E.164 format phone number
PhoneNumberIdentifier phone = new PhoneNumberIdentifier("+14255551234");

String phoneNumber = phone.getPhoneNumber();  // "+14255551234"
String rawId = phone.ge

🎯 Best For

  • Claude users
  • Software engineers
  • Development teams
  • Tech leads

💡 Use Cases

  • Code quality improvement
  • Best practice enforcement

📖 How to Use This Skill

  1. 1

    Install the Skill

    Copy the install command from the Terminal tab and run it. The SKILL.md file downloads to your local skills directory.

  2. 2

    Load into Your AI Assistant

    Open Claude and reference the skill. Paste the SKILL.md content or use the system prompt tab.

  3. 3

    Apply Azure Communication Common Java to Your Work

    Open your project in the AI assistant and ask it to apply the skill. Start with a small module to verify the output quality.

  4. 4

    Review and Refine

    Review AI suggestions before committing. Run tests, check for regressions, and iterate on the skill output.

❓ Frequently Asked Questions

Is Azure Communication Common Java compatible with Cursor and VS Code?

Yes — this skill works with any AI coding assistant including Cursor, VS Code with Copilot, and JetBrains IDEs.

Do I need specific dependencies for Azure Communication Common Java?

Check the install command and Works With section. Most code skills only require the AI assistant and your codebase.

How do I install Azure Communication Common Java?

Copy the install command from the Terminal tab and run it. The skill downloads to ./skills/azure-communication-common-java/SKILL.md, ready to use.

Can I customize this skill for my team?

Absolutely. Edit the SKILL.md file to add team-specific instructions, examples, or workflows.

⚠️ Common Mistakes to Avoid

Skipping validation

Always test AI-generated code changes, even for simple refactors.

Missing dependency updates

Check if the skill requires updated dependencies or new packages.

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