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 jonathan-vella/apex-accelerator --skill entra-app-registrationgit clone --depth 1 https://github.com/jonathan-vella/apex-acceleratorWrote 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/jonathan-vella/apex-accelerator/entra-app-registration)<a href="https://agentmods.dev/skills/jonathan-vella/apex-accelerator/entra-app-registration"><img src="https://agentmods.dev/badge/skills/jonathan-vella/apex-accelerator/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/jonathan-vella/apex-accelerator/entra-app-registration"><img src="https://agentmods.dev/badge/skills/jonathan-vella/apex-accelerator/entra-app-registration.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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 | $0.00098 | $0.01010 |
| Opus 5 | $0.00049 | $0.00505 |
| Sonnet 5 | $0.00020 | $0.00202 |
| Haiku 4.5 | $0.00010 | $0.00101 |
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 8d 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.
How it starts
The opening of the file, as written. The whole thing — 78 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Entra App Registration
Microsoft Entra ID (formerly Azure AD) is Microsoft's cloud identity and access-management service. This skill guides app registration, OAuth 2.0 flows, and MSAL integration.
For key concepts, application types, and the 3 common patterns (first-time
registration, console app with user auth, service-to-service), read
references/common-patterns.md.
Rules
- Prefer IaC for managing app registrations when the project uses IaC, scales to many apps, or needs audit history (see
references/BICEP-EXAMPLE.bicep) - Prefer certificates or federated identity credentials over client secrets in production
- Store client secrets in Key Vault — never commit them; rotate regularly; copy the value immediately on creation (only shown once)
- Grant least-privilege API permissions — only the scopes the app actually uses
- CLI for ad-hoc, IaC for production — see
references/cli-commands.md - Out of scope: Azure RBAC (azure-rbac), Key Vault audits (azure-compliance), resource security scanning (azure-compliance)
Core Workflow
Five-step procedure (full per-step detail in
references/core-workflow.md):
- Register the Application — portal, CLI (
cli-commands.md), or IaC (BICEP-EXAMPLE.bicep) - Configure Authentication — redirect URIs / token settings per app type
- Configure API Permissions — Graph and custom-API scopes (
api-permissions.md) - Create Client Credentials — secret / certificate / federated identity (Key Vault)
- Implement OAuth Flow — code integration (
oauth-flows.md,console-app-example.md)
Microsoft Authentication Library (MSAL)
Recommended library for integrating with the Microsoft identity platform:
What ships with it
18 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 11 KB
- references/auth-best-practices.md 6.4 KB
- references/BICEP-EXAMPLE.bicep 5.2 KB
- references/cli-commands.md 9.0 KB
- references/common-patterns.md 2.3 KB
- references/console-app-example.md 10 KB
- references/core-workflow.md 2.6 KB
- references/first-app-registration.md 7.7 KB
- references/oauth-flows.md 9.7 KB
- references/sdk/azure-identity-dotnet.md 943 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 808 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 7.8 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.
- 8d ago First seen · 78 lines · 98 tokens per session scan A 7b664ea302ca
entra-app-registration is a skill published in the GitHub repository jonathan-vella/apex-accelerator (50 stars, last pushed 5d ago), licensed MIT. It adds 98 tokens to every session and 1,010 once invoked, about $0.0005 per session on Opus 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.
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