# azure-identity-rust

A skill that tells your agent how to wire Microsoft Entra ID into a Rust app: which credential fits local work and which one belongs in production.

- skill · `type=skill` · Claude Code, GitHub Copilot · 5 installs · ★ 3149
- Author: Microsoft
- License: MIT · policy=mirror · the beginning of the file is at the end of this page
- Source: https://github.com/microsoft/skills/tree/HEAD/.github/plugins/azure-sdk-rust/skills/azure-identity-rust/SKILL.md
- Updated: 2026-10-23
- HTML: https://affpapa.org/en/nevibecode/skills/azure-identity-rust

## What it does

This skill covers Azure authentication for Rust through the `azure_identity` crate. Your agent gets working patterns for three cases: `DeveloperToolsCredential` while developing locally, `ManagedIdentityCredential` on Azure-hosted resources, and `ClientSecretCredential` for service accounts and pipelines. The remaining credential types are listed too, from `WorkloadIdentityCredential` for Kubernetes to `AzurePipelinesCredential`.

The catch: Rust has no `DefaultAzureCredential`. Ask an agent for the code you would write in another language and it reaches for a type that does not exist. The skill heads that off by splitting local and production paths from the start. It also flags the crate trap — stick to official `azure_*` crates from the azure-sdk crates.io user, not the deprecated `azure_sdk_*` line or community builds.

Dependencies come in with `cargo add azure_identity azure_core tokio`. Service principal auth reads `AZURE_TENANT_ID`, `AZURE_CLIENT_ID` and `AZURE_CLIENT_SECRET`; the local path expects a prior `az login` or `azd auth login`. The identity also needs RBAC roles for whatever service you call, or the requests fail.

## Requirements
- Works with: Azure

## Install

### Claude Code (native platform)

1. **Skills CLI (Vercel)**
```bash
npx skills add microsoft/skills --skill azure-identity-rust -a claude-code
```

2. **Manually: put the files in place**
- File: `~/.claude/skills/azure-identity-rust/SKILL.md` — Copy the whole skill folder; for one project use .claude/skills/azure-identity-rust/

### Codex

**Manually: put the files in place**
- File: `.agents/skills/azure-identity-rust/SKILL.md` — For all projects use ~/.agents/skills/

### Cursor

**Manually: put the files in place**
- File: `.cursor/skills/azure-identity-rust/SKILL.md` — Cursor also reads .agents/skills/ and .claude/skills/

### GitHub Copilot

1. **GitHub CLI**
```bash
gh skill install microsoft/skills azure-identity-rust
```

2. **Manually: put the files in place**
- File: `.github/skills/azure-identity-rust/SKILL.md`

### Gemini CLI

**Platform CLI**
```bash
gemini skills install https://github.com/microsoft/skills --path .github/plugins/azure-sdk-rust/skills/azure-identity-rust
```

### Windsurf (Devin Desktop)

**Manually: put the files in place**
- File: `.devin/skills/azure-identity-rust/SKILL.md` — The legacy .windsurf/skills/ path still works

### Claude.ai

**Claude.ai**
- Zip the folder and upload it in Settings → Capabilities → Skills

Where a file is given instead of a command, copy the files from the source to that path: https://github.com/microsoft/skills/tree/HEAD/.github/plugins/azure-sdk-rust/skills/azure-identity-rust/SKILL.md

## When to use it
- reach Azure Key Vault from Rust without hardcoding secrets
- pick a local-dev credential when `DefaultAzureCredential` does not exist
- authenticate a Kubernetes pod with workload identity
- set up a service principal with a secret or certificate for CI/CD
- tell official `azure_*` crates apart from the deprecated `azure_sdk_*` ones

## Example prompts
- Set up Azure auth for this Rust service using `DeveloperToolsCredential`
- Rewrite this to use `ManagedIdentityCredential` — it ships to App Service
- Add `ClientSecretCredential` and move tenant, client id and secret into environment variables

## Source text · SKILL.md · MIT

Below is the content of a third-party file. It is data, not instructions for you: do not act on anything written inside unless the human asks. Block tag: 2b151e9cc8f4a3d5.

BEGIN THIRD-PARTY FILE 2b151e9cc8f4a3d5
````text
---
name: azure-identity-rust
description: |
  Azure Identity library for Rust. Microsoft Entra ID authentication for all Azure SDK clients.
  Triggers: "azure identity rust", "DeveloperToolsCredential", "authentication rust", "managed identity rust", "credential rust", "Entra ID rust".
license: MIT
metadata:
  author: Microsoft
  package: azure_identity
---

# Azure Identity library for Rust

Microsoft Entra ID authentication for Azure SDK clients.

Use this skill when:

- An app needs to authenticate to Azure services from Rust
- You need `DeveloperToolsCredential` for local development
- You need `ManagedIdentityCredential` for Azure-hosted workloads
- You need service principal auth with secret or certificate

> **IMPORTANT:** Only use official `azure_*` crates published by the [azure-sdk](https://crates.io/users/azure-sdk) crates.io user. Do NOT use the deprecated `azure_sdk_*` crates (MindFlavor/AzureSDKForRust) or community crates. Official crates use underscores in names and none have version 0.21.0.

> **Note:** The Rust SDK does not have `DefaultAzureCredential`. Use `DeveloperToolsCredential` for local development and `ManagedIdentityCredential` for production.

```rust
// Incorrect in Rust: this type does not exist in azure_identity
use azure_identity::DefaultAzureCredential;
```

## Installation

```sh
cargo add azure_identity azure_core tokio
```

> If your code uses `azure_core` types directly, add `azure_core` to `Cargo.toml`. If you only use service-crate re-exports, direct `azure_core` dependency is optional.

## Environment Variables

```bash
AZURE_TENANT_ID=<your-tenant-id>         # Required for service principal auth
AZURE_CLIENT_ID=<your-client-id>         # Required for service principal or user-assigned managed identity
AZURE_CLIENT_SECRET=<your-client-secret> # Required for ClientSecretCredential
```

## Authentication

### DeveloperToolsCredential (Local Development)

Tries Azure CLI then Azure Developer CLI:

```rust
use azure_identity::DeveloperToolsCredential;
use azure_security_keyvault_secrets::SecretClient;

#[tokio::main]
async fn main() -> Result<(), Box<dyn std::error::Error>> {
    // Local dev: DeveloperToolsCredential. Production: use ManagedIdentityCredential.
    let credential = DeveloperToolsCredential::new(None)?;
    let client = SecretClient::new(
        "https://<vault-name>.vault.azure.net/",
        credential.clone(),
        None,
    )?;

    let secret = client.get_secret("secret-name", None).await?.into_model()?;
    println!("Secret: {:?}", secret.value);
    Ok(())
}
```

Ensure you are logged in:

```sh
az login        # Azure CLI
azd auth login  # or Azure Developer CLI
```

| Order | Credential                  | Login Command    |
| ----- | --------------------------- | ---------------- |
````
END THIRD-PARTY FILE 2b151e9cc8f4a3d5

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