What is azure-identity-ts?

A TypeScript authentication library guide for connecting applications to Azure services through Microsoft Entra ID, Microsoft's identity and access system. It covers credentials for local development, CI/CD, Kubernetes, and Azure-hosted applications.

Use it to obtain access tokens and authenticate TypeScript clients for Azure services such as Blob Storage.

It provides one authentication setup that can work in different environments without embedding service credentials in application code.

azure-identity-ts — Skill for Claude Code by lucaspmarie-a11y

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-identity-ts

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-identity-ts/github.svg)](https://agentmods.dev/skills/lucaspmarie-a11y/claude-skills-vault/azure-identity-ts)

Your own site

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

Per session 14 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 1,497 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 88% 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	$0.00014	$0.01497
Opus 5.5	$0.00006	$0.00599
Sonnet 5.5	$0.00003	$0.00299
Haiku 4.5	$0.00001	$0.00150

Measured 1mo ago against content hash a2bcaa639982, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

azure-identity-ts 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

88% identical to azure-identity-ts — 4 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-identity-ts/SKILL.md · 309 lines

How it starts

The opening of the file, as written. The whole thing — 309 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Azure Identity SDK for TypeScript

Authenticate to Azure services with various credential types.

Installation

npm install @azure/identity

Environment Variables

Service Principal (Secret)

AZURE_TENANT_ID=<tenant-id>
AZURE_CLIENT_ID=<client-id>
AZURE_CLIENT_SECRET=<client-secret>

Service Principal (Certificate)

AZURE_TENANT_ID=<tenant-id>
AZURE_CLIENT_ID=<client-id>
AZURE_CLIENT_CERTIFICATE_PATH=/path/to/cert.pem
AZURE_CLIENT_CERTIFICATE_PASSWORD=<optional-password>

Workload Identity (Kubernetes)

AZURE_TENANT_ID=<tenant-id>
AZURE_CLIENT_ID=<client-id>
AZURE_FEDERATED_TOKEN_FILE=/var/run/secrets/tokens/azure-identity

DefaultAzureCredential (Recommended)

import { DefaultAzureCredential } from "@azure/identity";

const credential = new DefaultAzureCredential();

// Use with any Azure SDK client
import { BlobServiceClient } from "@azure/storage-blob";
const blobClient = new BlobServiceClient(
  "https://<account>.blob.core.windows.net",
  credential
);

Credential Chain Order:

EnvironmentCredential
WorkloadIdentityCredential
ManagedIdentityCredential
VisualStudioCodeCredential
AzureCliCredential
AzurePowerShellCredential
AzureDeveloperCliCredential

Managed Identity

System-Assigned

import { ManagedIdentityCredential } from "@azure/identity";

const credential = new ManagedIdentityCredential();

User-Assigned (by Client ID)

const credential = new ManagedIdentityCredential({
  clientId: "<user-assigned-client-id>"
});

User-Assigned (by Resource ID)

const credential = new ManagedIdentityCredential({
  resourceId: "/subscriptions/<sub>/resourceGroups/<rg>/providers/Microsoft.ManagedIdentity/userAssignedIdentities/<name>"
});

Service Principal

Client Secret

import { ClientSecretCredential } from "@azure/identity";

const credential = new ClientSecretCredential(
  "<tenant-id>",
  "<client-id>",
  "<client-secret>"
);

Read the full file on GitHub · 309 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 · 309 lines · 14 tokens per session scan A a2bcaa639982

Subscribe to this mod's changes

azure-identity-ts is a skill published in the GitHub repository lucaspmarie-a11y/claude-skills-vault (5 stars, last pushed 4mo ago), licensed MIT. It adds 14 tokens to every session and 1,497 once invoked, about $0.0001 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 88% identical to azure-identity-ts, differing in 4 lines, and is treated as a copy.

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