microsoft/skills is a collection of skills, custom agents, AGENTS.md templates, plugins, hooks, commands, and MCP configurations that give AI coding agents context for Azure SDK and Microsoft AI Foundry development. Developers use it to install selected domain-specific guidance into coding-agent environments. The catalogue entries are the repository’s own agent resources and supporting configurations.
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.
npx skills add microsoft/skills --skill entra-app-registrationgit clone --depth 1 https://github.com/microsoft/skillsWrote 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.
[](https://agentmods.dev/skills/microsoft/skills/entra-app-registration)<a href="https://agentmods.dev/skills/microsoft/skills/entra-app-registration"><img src="https://agentmods.dev/badge/skills/microsoft/skills/entra-app-registration/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.
<a href="https://agentmods.dev/skills/microsoft/skills/entra-app-registration"><img src="https://agentmods.dev/badge/skills/microsoft/skills/entra-app-registration.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
SkillSpector: 1 finding, up to low
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- low Privilege Escalation · line 65 Skill requests more permissions than appear necessary for its stated functionality. Review if elevated access is justified.Fix: Request only the minimum permissions required. Document why each permission is needed. Remove broad permissions like '*' or 'all'.
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 | $0.00093 | $0.01799 |
| Opus 5.5 | $0.00037 | $0.00720 |
| Sonnet 5.5 | $0.00019 | $0.00360 |
| Haiku 4.5 | $0.00009 | $0.00180 |
Grade A, and why
entra-app-registration 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 2mo 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.
Copies of this mod
5 near-identical copies found in the catalogue:
- entra-app-registration — 100% identical, 0 lines differ
- entra-app-registration — 97% identical, 2 lines differ
- entra-app-registration — 97% identical, 20 lines differ
- entra-app-registration — 95% identical, 4 lines differ
- entra-app-registration — 86% identical, 45 lines differ
How it starts
The opening of the file, as written. The whole thing — 192 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Overview
Microsoft Entra ID (formerly Azure Active Directory) is Microsoft's cloud-based identity and access management service. App registrations allow applications to authenticate users and access Azure resources securely.
Key Concepts
| Concept | Description |
|---|---|
| App Registration | Configuration that allows an app to use Microsoft identity platform |
| Application (Client) ID | Unique identifier for your application |
| Tenant ID | Unique identifier for your Azure AD tenant/directory |
| Client Secret | Password for the application (confidential clients only) |
| Redirect URI | URL where authentication responses are sent |
| API Permissions | Access scopes your app requests |
| Service Principal | Identity created in your tenant when you register an app |
Application Types
| Type | Use Case |
|---|---|
| Web Application | Server-side apps, APIs |
| Single Page App (SPA) | JavaScript/React/Angular apps |
| Mobile/Native App | Desktop, mobile apps |
| Daemon/Service | Background services, APIs |
Core Workflow
Step 1: Register the Application
Create an app registration in the Azure portal or using Azure CLI.
Portal Method:
- Navigate to Azure Portal → Microsoft Entra ID → App registrations
- Click "New registration"
- Provide name, supported account types, and redirect URI
- Click "Register"
CLI Method: See references/cli-commands.md IaC Method: See references/BICEP-EXAMPLE.bicep
It's highly recommended to use the IaC to manage Entra app registration if you already use IaC in your project, need a scalable solution for managing lots of app registrations or need fine-grained audit history of the configuration changes.
Step 2: Configure Authentication
Set up authentication settings based on your application type.
- Web Apps: Add redirect URIs, enable ID tokens if needed
- SPAs: Add redirect URIs, enable implicit grant flow if necessary
- Mobile/Desktop: Use
http://localhostor custom URI scheme - Services: No redirect URI needed for client credentials flow
What ships with it
16 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
- references/api-permissions.md 10.0 KB
- references/auth-best-practices.md 6.1 KB
- references/BICEP-EXAMPLE.bicep 5.2 KB
- references/cli-commands.md 8.6 KB
- references/console-app-example.md 11 KB
- references/first-app-registration.md 7.2 KB
- references/oauth-flows.md 9.3 KB
- references/sdk/azure-identity-dotnet.md 940 B
- references/sdk/azure-identity-java.md 1.2 KB
- references/sdk/azure-identity-py.md 1.1 KB
- references/sdk/azure-identity-rust.md 805 B
- references/sdk/azure-identity-ts.md 1.1 KB
- references/sdk/azure-keyvault-py.md 1.1 KB
- references/sdk/azure-keyvault-secrets-ts.md 1.0 KB
- references/sdk/microsoft-azure-webjobs-extensions-authentication-events-dotnet.md 1.5 KB
- references/troubleshooting.md 7.4 KB
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.
- 2mo ago First seen · 192 lines · 93 tokens per session scan A 8f8e7b7429b0
entra-app-registration is a skill published in the GitHub repository microsoft/skills (3,177 stars, last pushed yesterday), licensed MIT. It adds 93 tokens to every session and 1,799 once invoked, about $0.0004 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.
entra-app-registration compared with skills from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| entra-app-registrationmicrosoft/skills | Skill | 3.2k | yesterday | MIT | A | 93 | Claude Code |
| bf-to-agents-sdk-typescript-migrationmicrosoft/Agents | Skill | 1.1k | yesterday | MIT | A | 71 | Claude Code |
| agent-framework-azure-ai-py-v2diegosouzapw/awesome-omni-skills | Skill | 170 | 4mo ago | MIT | A | 61 | Claude Code, Codex |
| agents-v2-py-v2diegosouzapw/awesome-omni-skills | Skill | 170 | 4mo ago | MIT | A | 78 | Claude Code, Codex |
| agents-v2-pydiegosouzapw/awesome-omni-skills | Skill | 170 | 4mo ago | MIT | A | 76 | Claude Code, Codex |
| agent-framework-azure-ai-pydiegosouzapw/awesome-omni-skills | Skill | 170 | 4mo ago | MIT | A | 59 | Claude Code, Codex |
| agents-sdk-dotnetmicrosoft/Agents | Skill | 1.1k | yesterday | MIT | A | 112 | Claude Code |