nitrostack-auth-security

nitrostack-auth-security is a skill for Claude Code, Codex from AnanthanarayanKV/SentinalMCP. It costs 30 tokens per session (828 once invoked), scanned A, original, no licence file.

A set of security guidance for building authentication and access control in NitroStack applications. It covers JWT, API keys, OAuth 2.1, and RBAC, which are ways to verify users and control permissions.

In plain words
What is it for?
Use it when implementing or reviewing JWT authentication, API-key access, OAuth 2.1 login, or role-based permissions in NitroStack.
Why use it?
It helps developers choose safer patterns when adding sign-in, credentials, and user permissions to a NitroStack app.

Skill for Claude CodeCodex

Which agent this was written for is unclear — body not stored (licence); the path alone says nothing. Also seen: installed under .agents/ (shared by several agents).

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.

agentmods
npx agentmods add skills/ananthanarayankv/sentinalmcp/auth-security
Any agent
npx skills add AnanthanarayanKV/SentinalMCP --skill auth-security
Clone the repo
git clone --depth 1 https://github.com/AnanthanarayanKV/SentinalMCP

Made for: Claude Code, Codex.

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.

agentmods badge for nitrostack-auth-security

README.md
[![agentmods](https://agentmods.dev/badge/skills/ananthanarayankv/sentinalmcp/auth-security.svg)](https://agentmods.dev/skills/ananthanarayankv/sentinalmcp/auth-security)
Your own site
<a href="https://agentmods.dev/skills/ananthanarayankv/sentinalmcp/auth-security"><img src="https://agentmods.dev/badge/skills/ananthanarayankv/sentinalmcp/auth-security.svg" alt="Measured on agentmods" height="20"></a>
Per session 30 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 828 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin unknown 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00030 $0.00828
Opus 5 $0.00015 $0.00414
Sonnet 5 $0.00006 $0.00166
Haiku 4.5 $0.00003 $0.00083

Measured 5d ago against content hash 5408d8946e47, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

nitrostack-auth-security 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 5d 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.

.agents/skills/auth-security/SKILL.md · 142 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

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.

  1. 5d ago First seen · 142 lines · 30 tokens per session scan A 5408d8946e47

Subscribe to this mod's changes

nitrostack-auth-security is a skill published in the GitHub repository AnanthanarayanKV/SentinalMCP (0 stars, last pushed 1mo ago), with no licence file. It adds 30 tokens to every session and 828 once invoked, about $0.0002 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 2026-08-31.

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