What is azure-communication-callautomation-java?

A Java client for Azure Communication Services that automates phone-call workflows. It supports interactive voice response (IVR), call routing, recording, and AI-based interactions.

Use it to build automated phone systems, route callers, record calls, and run actions during established calls.

It removes much of the low-level work needed to answer, redirect, and manage calls in a server application.

azure-communication-callautomation-java — Skill for Claude Code by luc

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 lucaspmarie-a11y/claude-skills-vault --skill azure-communication-callautomation-java

Clone the repo

git clone --depth 1 https://github.com/lucaspmarie-a11y/claude-skills-vault

Made for: Claude Code.

Or install antigravity-awesome-skills, the plugin that ships this one along with the rest of its 199 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/lucaspmarie-a11y/claude-skills-vault/azure-communication-callautomation-java/github.svg)](https://agentmods.dev/skills/lucaspmarie-a11y/claude-skills-vault/azure-communication-callautomation-java)

Your own site

<a href="https://agentmods.dev/skills/lucaspmarie-a11y/claude-skills-vault/azure-communication-callautomation-java"><img src="https://agentmods.dev/badge/skills/lucaspmarie-a11y/claude-skills-vault/azure-communication-callautomation-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/lucaspmarie-a11y/claude-skills-vault/azure-communication-callautomation-java"><img src="https://agentmods.dev/badge/skills/lucaspmarie-a11y/claude-skills-vault/azure-communication-callautomation-java.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 28 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 1,793 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 original No closer match found 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	$0.00028	$0.01793
Opus 5	$0.00014	$0.00897
Sonnet 5	$0.00006	$0.00359
Haiku 4.5	$0.00003	$0.00179

Measured 8d ago against content hash c6ff4c29ec0d, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

azure-communication-callautomation-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 8d 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

Copies of this mod

2 near-identical copies found in the catalogue:

azure-communication-callautomation-java — 94% identical, 5 lines differ
azure-communication-callautomation-java — 94% identical, 5 lines differ

plugins/antigravity-awesome-skills-claude/skills/azure-communication-callautomation-java/SKILL.md · 260 lines

How it starts

The opening of the file, as written. The whole thing — 260 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Azure Communication Call Automation (Java)

Build server-side call automation workflows including IVR systems, call routing, recording, and AI-powered interactions.

Installation

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

Client Creation

import com.azure.communication.callautomation.CallAutomationClient;
import com.azure.communication.callautomation.CallAutomationClientBuilder;
import com.azure.identity.DefaultAzureCredentialBuilder;

// With DefaultAzureCredential
CallAutomationClient client = new CallAutomationClientBuilder()
    .endpoint("https://<resource>.communication.azure.com")
    .credential(new DefaultAzureCredentialBuilder().build())
    .buildClient();

// With connection string
CallAutomationClient client = new CallAutomationClientBuilder()
    .connectionString("<connection-string>")
    .buildClient();

Key Concepts

Class	Purpose
`CallAutomationClient`	Make calls, answer/reject incoming calls, redirect calls
`CallConnection`	Actions in established calls (add participants, terminate)
`CallMedia`	Media operations (play audio, recognize DTMF/speech)
`CallRecording`	Start/stop/pause recording
`CallAutomationEventParser`	Parse webhook events from ACS

Create Outbound Call

import com.azure.communication.callautomation.models.*;
import com.azure.communication.common.CommunicationUserIdentifier;
import com.azure.communication.common.PhoneNumberIdentifier;

// Call to PSTN number
PhoneNumberIdentifier target = new PhoneNumberIdentifier("+14255551234");
PhoneNumberIdentifier caller = new PhoneNumberIdentifier("+14255550100");

CreateCallOptions options = new CreateCallOptions(
    new CommunicationUserIdentifier("<user-id>"),  // Source
    List.of(target))                                // Targets
    .setSourceCallerId(caller)
    .setCallbackUrl("https://your-app.com/api/callbacks");

CreateCallResult result = client.createCall(options);
String callConnectionId = result.getCallConnectionProperties().getCallConnectionId();

Read the full file on GitHub · 260 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.

8d ago First seen · 260 lines · 28 tokens per session scan A c6ff4c29ec0d

Subscribe to this mod's changes

azure-communication-callautomation-java is a skill published in the GitHub repository lucaspmarie-a11y/claude-skills-vault (5 stars, last pushed 3mo ago), licensed MIT. It adds 28 tokens to every session and 1,793 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.

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