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Azure Communication Common (Java) · microsoft | DecimalAI

codingby microsoft

Azure Communication Common (Java)

microsoft/azure-communication-common-java

Source microsoft/skills ↗License MIT

Azure Communication Services common utilities for Java.

SkillScore95Maintained

Automatic

Coding pack

Last verified 8/10/2026

What it changes

Passed 21 of 22 test cases with the skill, and 17 of 22 without it.

Without skill77%

With skill95%

Checks it passed that the model alone missed

The variable AZURE_COMMUNICATION_ENDPOINT is referenced.
The variable AZURE_COMMUNICATION_USER_TOKEN is referenced.
The implementation calls setRefreshProactively(true) on CommunicationTokenRefreshOptions.

and 4 more in the full report

4 fixed17 passed either way1 still failing0 broke

Pass-rate lift: +18 pp
Tokens: +83%
Agent turns: 0%
Response time: -50%

Model gemini-3.6-flashMeasured 8/10/2026v121 of 22 cases passed with skill

Tokens, turns and time describe resource use, not a dollar price.

Use this skill

Save it into your project's skills folder. Claude Code picks it up in its next session.

curl -fsSL --create-dirs -o .claude/skills/microsoft-azure-communication-common-java/SKILL.md https://app.decimal.ai/s/microsoft-azure-communication-common-java/SKILL.md

Want it pinned and updatable? pip install "decimalai>=0.15", then decimalai skills add microsoft-azure-communication-common-java, and start Claude Code with claude --plugin-dir "$(git rev-parse --show-toplevel)/.agents"

1 · One-time — install the CLI (docs ↗)

pip install "decimalai>=0.15"

2 · Get the skill — writes .agents/skills/microsoft-azure-communication-common-java/ and pins it in .decimal/skills.lock

decimalai skills add microsoft-azure-communication-common-java

No CLI? Get the same file — curl · raw file

curl -fsSL --create-dirs -o .claude/skills/microsoft-azure-communication-common-java/SKILL.md https://app.decimal.ai/s/microsoft-azure-communication-common-java/SKILL.md

Raw file: /s/microsoft-azure-communication-common-java/SKILL.md ↗ · machine-readable summary at /s/microsoft-azure-communication-common-java.json ↗

Safety checks: 3 of 3 passed

Code scan CleanIntent PassedContent Clean

See it in action

One of 4 test cases the skill fixed. Same model, same prompt, with and without the skill.

1 of 4

Prompt

What standard environment variable names are used to configure the endpoint URL and user access token for Azure Communication Services applications?

What was checked, without and with the skill
Checked	Without skill	With skill
The variable AZURE_COMMUNICATION_ENDPOINT is referenced.	Missed	Passed
The variable AZURE_COMMUNICATION_USER_TOKEN is referenced.	Missed	Passed

case-19 · gemini-3.6-flash · 8/10/2026 · answers are capped and redacted

What's inside

The instructions your model reads when the skill loads.

SKILL.md298 lines2 files

Azure Communication Common (Java)

Shared authentication utilities and data structures for Azure Communication Services.

Installation

<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)

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)

Track record

Benchmark

21 / 22

test cases passed, vs 17 / 22 without

Adoption

Users: 0
Times used: 0

Safety and source details

SkillSafety

✓ 3 of 3 passed

Code scan15 of 15 checks clean

0 critical · 0 warning · 0 info — scanner v4 — 8/3/2026

View 15 scanner checks

live_secretremote_code_executionreverse_shelldata_exfiltrationssrf_metadataagent_snoopinganti_refusaldestructive_commandsobfuscated_unicodeunicode_homoglyphopaque_blobsuspicious_urltool_overreachtrigger_abuseprompt_injection_phrasing

IntentSafe

LLM judge · does the skill do what it claims

ContentClean

LLM judge · policy & harmful-content review

Source

Imported

microsoft / skills

.github/plugins/azure-sdk-java/skills/azure-communication-common-java/SKILL.md

View on GitHub ↗

License MITImported 8/3/2026Version v1Bundled 1 file

Other skills for the same job

Published skills whose descriptions closely match this one, with their headline benchmark lift.

azure-communication-common-javaAzure Communication Services common utilities for Java. Use when working with CommunicationTokenCredential, user identifiers, token refresh, or shared authentication across ACS services.Near-identical description+36 pp pass-rate lift

More skills from the same source and nearby in the registry, with their headline benchmark lift.

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See it in action

What's inside

Azure Communication Common (Java)

Installation

Key Concepts

CommunicationTokenCredential

Static Token (Short-lived Clients)

Track record

Benchmark

Adoption

SkillSafety

Source

Other skills for the same job

Related skills