What is azure-communication-chat-java?

A Java client library for building real-time chat with Azure Communication Services. It covers chat threads, messages, participants, and read receipts.

Use it to create chat threads, send messages, manage participants, and track whether messages were read.

It provides the code needed to connect a Java application to Azure’s chat service instead of implementing chat messaging and user tracking from scratch.

azure-communication-chat-java — Skill for Claude Code by DorianGallo

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent

npx skills add DorianGallo/antigravity-awesome-skills-local --skill azure-communication-chat-java

Clone the repo

git clone --depth 1 https://github.com/DorianGallo/antigravity-awesome-skills-local

Made for: Claude Code.

Or install antigravity-awesome-skills, the plugin that ships this one along with the rest of its 197 skills.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

README.md

[![agentmods](https://agentmods.dev/badge/skills/doriangallo/antigravity-awesome-skills-local/azure-communication-chat-java/github.svg)](https://agentmods.dev/skills/doriangallo/antigravity-awesome-skills-local/azure-communication-chat-java)

Your own site

<a href="https://agentmods.dev/skills/doriangallo/antigravity-awesome-skills-local/azure-communication-chat-java"><img src="https://agentmods.dev/badge/skills/doriangallo/antigravity-awesome-skills-local/azure-communication-chat-java/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/skills/doriangallo/antigravity-awesome-skills-local/azure-communication-chat-java"><img src="https://agentmods.dev/badge/skills/doriangallo/antigravity-awesome-skills-local/azure-communication-chat-java.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 23 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 2,069 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin 83% copy Near-identical to another mod in the catalogue.

Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

Model	Per session	Once invoked
Fable 5.1	$0.00023	$0.02069
Opus 5.5	$0.00009	$0.00828
Sonnet 5.5	$0.00005	$0.00414
Haiku 4.5	$0.00002	$0.00207

Measured 1mo ago against content hash 2879b713d800, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

azure-communication-chat-java scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 1mo ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

Origin

This is a copy

83% identical to azure-communication-chat-java — 18 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

plugins/antigravity-awesome-skills-claude/skills/azure-communication-chat-java/SKILL.md · 321 lines

How it starts

The opening of the file, as written. The whole thing — 321 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Azure Communication Chat (Java)

Build real-time chat applications with thread management, messaging, participants, and read receipts.

Installation

<dependency>
    <groupId>com.azure</groupId>
    <artifactId>azure-communication-chat</artifactId>
    <version>1.6.0</version>
</dependency>

Client Creation

import com.azure.communication.chat.ChatClient;
import com.azure.communication.chat.ChatClientBuilder;
import com.azure.communication.chat.ChatThreadClient;
import com.azure.communication.common.CommunicationTokenCredential;

// ChatClient requires a CommunicationTokenCredential (user access token)
String endpoint = "https://<resource>.communication.azure.com";
String userAccessToken = "<user-access-token>";

CommunicationTokenCredential credential = new CommunicationTokenCredential(userAccessToken);

ChatClient chatClient = new ChatClientBuilder()
    .endpoint(endpoint)
    .credential(credential)
    .buildClient();

// Async client
ChatAsyncClient chatAsyncClient = new ChatClientBuilder()
    .endpoint(endpoint)
    .credential(credential)
    .buildAsyncClient();

Key Concepts

Class	Purpose
`ChatClient`	Create/delete chat threads, get thread clients
`ChatThreadClient`	Operations within a thread (messages, participants, receipts)
`ChatParticipant`	User in a chat thread with display name
`ChatMessage`	Message content, type, sender info, timestamps
`ChatMessageReadReceipt`	Read receipt tracking per participant

Create Chat Thread

import com.azure.communication.chat.models.*;
import com.azure.communication.common.CommunicationUserIdentifier;
import java.util.ArrayList;
import java.util.List;

// Define participants
List<ChatParticipant> participants = new ArrayList<>();

ChatParticipant participant1 = new ChatParticipant()
    .setCommunicationIdentifier(new CommunicationUserIdentifier("<user-id-1>"))
    .setDisplayName("Alice");

ChatParticipant participant2 = new ChatParticipant()
    .setCommunicationIdentifier(new CommunicationUserIdentifier("<user-id-2>"))
    .setDisplayName("Bob");

participants.add(participant1);
participants.add(participant2);

// Create thread
CreateChatThreadOptions options = new CreateChatThreadOptions("Project Discussion")
    .setParticipants(participants);

CreateChatThreadResult result = chatClient.createChatThread(options);
String threadId = result.getChatThread().getId();

// Get thread client for operations
ChatThreadClient threadClient = chatClient.getChatThreadClient(threadId);

Read the full file on GitHub · 321 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

1mo ago First seen · 321 lines · 23 tokens per session scan A 2879b713d800

Subscribe to this mod's changes

azure-communication-chat-java is a skill published in the GitHub repository DorianGallo/antigravity-awesome-skills-local (2 stars, last pushed yesterday), licensed MIT. It adds 23 tokens to every session and 2,069 once invoked, about $0.0001 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 83% identical to azure-communication-chat-java, differing in 18 lines, and is treated as a copy.

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