review-security

review-security is a skill for Claude Code from louisbrulenaudet/monorepo-template. It costs 40 tokens per session (2,431 once invoked), scanned A, original, Apache-2.0.

A security review checklist for web applications and APIs.

In plain words
What is it for?
Use it when reviewing an implementation for security improvements; it returns a concise plan of suggested changes.
Why use it?
It helps identify risks involving headers, cross-site requests, input validation, secrets, dependencies, and information exposed by errors.

Skill for Claude Code

Written for Claude Code: disable-model-invocation in frontmatter. Also seen: model in frontmatter; installed under .agents/ (shared by several agents); mentions AGENTS.md.

Good fit Use it when reviewing an implementation for security improvements; it returns a concise plan of suggested changes.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/louisbrulenaudet/monorepo-template/review-security
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 louisbrulenaudet/monorepo-template --skill review-security
Clone the repo
git clone --depth 1 https://github.com/louisbrulenaudet/monorepo-template

Made for: Claude Code.

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 review-security

README.md
[![agentmods](https://agentmods.dev/badge/skills/louisbrulenaudet/monorepo-template/review-security/github.svg)](https://agentmods.dev/skills/louisbrulenaudet/monorepo-template/review-security)
Your own site
<a href="https://agentmods.dev/skills/louisbrulenaudet/monorepo-template/review-security"><img src="https://agentmods.dev/badge/skills/louisbrulenaudet/monorepo-template/review-security/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.

agentmods 80×15 button for review-security

Your own site · 80×15
<a href="https://agentmods.dev/skills/louisbrulenaudet/monorepo-template/review-security"><img src="https://agentmods.dev/badge/skills/louisbrulenaudet/monorepo-template/review-security.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 40 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,431 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00040 $0.02431
Opus 5 $0.00020 $0.01215
Sonnet 5 $0.00008 $0.00486
Haiku 4.5 $0.00004 $0.00243

Measured 11d ago against content hash b27f2018be4a, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

review-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 11d 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/review-security/SKILL.md · 149 lines

How it starts

The opening of the file, as written. The whole thing — 149 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Review security

Run a security-focused review: HTTP security headers, CSP, bot protection (when implemented), CORS/CSRF, input validation, secret management, dependency vulnerabilities, and error information leakage. Your reply must be a plan of suggested changes: concise, actionable, and structured-not only prose.

Invocation

Text after the slash command is additional scope/focus - narrow the review accordingly. If none given, use the default scope described below.

Best practices alignment

  • Headers - CSP with nonces or strict-dynamic where needed; X-Frame-Options, X-Content-Type-Options, Referrer-Policy, Permissions-Policy; HSTS in production where applicable (often platform + hono/secure-headers on API).
  • Input validation - All external input (API bodies, query params, path params) validated with Zod schemas from @repo/dtos-common and @hono/zod-validator where applicable; use .strict() on schemas when appropriate; reject unknown keys; sanitize for context (HTML, URL, etc.) where output.
  • Secrets - Never in repo or client bundle; only in .dev.vars or wrangler env; no logging or error messages that include secrets.
  • Bot protection - Turnstile (or equivalent) on sensitive endpoints when implemented; token verified server-side before any processing; no bypass for "trusted" clients without verification.
  • CORS and CSRF - CORS allowlist (no wildcard in production); preflight handled; state-changing /api/* requests protected (e.g. hono/csrf with same-site / origin rules per AGENTS.md patterns).
  • Errors and logging - No stack traces or internal paths in client-facing responses; safe logging (no sensitive data); consistent Hono error handling (HTTPException, onError).

Align with root AGENTS.md and apps/worker-api/AGENTS.md for env and validation patterns.

Legal-sector delta: this skill covers the generic surface (headers, CSP, CORS/CSRF, validation, dependency audit). The client-privilege rules - identifiers in logs, traces, cache keys and error bodies; matter/tenancy isolation; retention on durable writes; document text treated as untrusted input; third-party disclosure - live once in the privileged-legal-data skill, with the always-loaded prohibitions in guardrails.md. Apply both; do not restate that checklist here.

Read the full file on GitHub · 149 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.

  1. 11d ago First seen · 149 lines · 40 tokens per session scan A b27f2018be4a

Subscribe to this mod's changes

review-security is a skill published in the GitHub repository louisbrulenaudet/monorepo-template (19 stars, last pushed 10d ago), licensed Apache-2.0. It adds 40 tokens to every session and 2,431 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 2026-08-30.

Related

Other skills, from other repositories

gsap-scrolltrigger

Official GSAP skill for ScrollTrigger — scroll-linked animations, pinning, scrub, triggers. Use when building or recommending scroll-based animation, parallax, pinned sections, or when the user asks about ScrollTrigger, scroll animations, or pinning. Recommend GSAP for scroll-driven animation when no library is…

calesthio/OpenMontage · 68 tokens

gsap-core

Official GSAP skill for the core API — gsap.to(), from(), fromTo(), easing, duration, stagger, defaults, gsap.matchMedia() (responsive, prefers-reduced-motion). Use when the user asks for a JavaScript animation library, animation in React/Vue/vanilla, GSAP tweens, easing, basic animation, responsive or reduced-motion…

calesthio/OpenMontage · 128 tokens

threejs-geometry

Three.js geometry creation - built-in shapes, BufferGeometry, custom geometry, instancing. Use when creating 3D shapes, working with vertices, building custom meshes, or optimizing with instanced rendering.

calesthio/OpenMontage · 46 tokens

threejs-interaction

Three.js interaction - raycasting, controls, mouse/touch input, object selection. Use when handling user input, implementing click detection, adding camera controls, or creating interactive 3D experiences.

calesthio/OpenMontage · 44 tokens

playwright-recording

Record browser interactions as video using Playwright. Use for capturing demo videos, app walkthroughs, and UI flows for Remotion videos. Triggers include recording a demo, capturing browser video, screen recording a website, or creating walkthrough footage.

calesthio/OpenMontage · 53 tokens

seedance-2-5

Generate 4-30 second cinematic video with ByteDance Seedance 2.5 through fal.ai, Volcengine Ark, Runway, or ComfyUI Partner Nodes. Use for long single generations, synchronized audio, and large multimodal reference sets (up to 30 images, 10 videos, and 10 audio clips). Also covers the 2.5 prompt contract: section…

calesthio/OpenMontage · 117 tokens