What is azure-identity-ts?

A TypeScript authentication library for Azure services using Microsoft Entra ID, Microsoft's identity and access system.

Use it to authenticate TypeScript applications with service principals, managed identities, certificates, Azure CLI, or interactive login.

It lets one credential setup work with different environments, such as local development, CI/CD, Kubernetes, and Azure-hosted apps.

azure-identity-ts — Skill for Claude Code by Ghosteken/agent-harness

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 Ghosteken/agent-harness --skill azure-identity-ts

Clone the repo

git clone --depth 1 https://github.com/Ghosteken/agent-harness

Made for: Claude Code.

Or install agent-harness, the plugin that ships this one along with the rest of its 173 skills, 17 commands, 12 agents.

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/ghosteken/agent-harness/azure-identity-ts/github.svg)](https://agentmods.dev/skills/ghosteken/agent-harness/azure-identity-ts)

Your own site

<a href="https://agentmods.dev/skills/ghosteken/agent-harness/azure-identity-ts"><img src="https://agentmods.dev/badge/skills/ghosteken/agent-harness/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/ghosteken/agent-harness/azure-identity-ts"><img src="https://agentmods.dev/badge/skills/ghosteken/agent-harness/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 1,557 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	$0.00014	$0.01557
Opus 5.5	$0.00006	$0.00623
Sonnet 5.5	$0.00003	$0.00311
Haiku 4.5	$0.00001	$0.00156

Measured 1mo ago against content hash 61c52977e24d, 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

Copies of this mod

1 near-identical copy found in the catalogue:

azure-identity-ts — 100% identical, 0 lines differ

archive/skills-community/azure-identity-ts/SKILL.md · 314 lines

How it starts

The opening of the file, as written. The whole thing — 314 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 · 314 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 · 314 lines · 14 tokens per session scan A 61c52977e24d

Subscribe to this mod's changes

azure-identity-ts is a skill published in the GitHub repository Ghosteken/agent-harness (4 stars, last pushed yesterday), licensed MIT. It adds 14 tokens to every session and 1,557 once invoked, about $0.0001 per session on Opus 5.5. 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.

Claude Code Languages Security TypeScript agent-orchestration agent-skills ai-agents automation devtools

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