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nextjs-security

95 / 100 · Low risk

Fine to try. Some of what it can do is expected: a coding skill usually runs build and test commands.

By yanacuti1121/Yana-AI (GitHub) · coding · 13 stars · scanned at commit 54d4aa9

Find Next.js-specific security issues across App Router, Pages Router, and Server Actions. Covers the middleware-bypass class, NEXT_PUBLIC environment leakage, RSC over-fetch, CSP for App Router, open redirects, and next/image SSRF via permissive remotePatterns. Invoke when reviewing a Next.js app before launch, after a major version upgrade, or when adding authenticated routes.

Works with any agent that supports SKILL.md skills.

What this skill can do

Install

Paste this into your terminal. It downloads exactly the version we scanned, not whatever is newest.

if [ -e ~/.agents/skills/'nextjs-security' ] || [ -L ~/.agents/skills/'nextjs-security' ]; then echo 'A skill folder named nextjs-security already exists — not replacing it' >&2; false; else d=$(mktemp -d) && git clone --quiet --filter=blob:none --no-checkout 'https://github.com/yanacuti1121/Yana-AI' "$d" && git -C "$d" checkout --quiet '54d4aa9fa3241319f4d37212bd23826658bf6bed' -- '.claude/skills/gw360--nextjs-security' && mkdir -p ~/.agents/skills && cp -R "$d"/'.claude/skills/gw360--nextjs-security' ~/.agents/skills/'nextjs-security' && rm -rf "$d"; fi

Codex reads ~/.agents/skills directly. For Claude Code, Cursor, Copilot, Gemini CLI, Antigravity or OpenCode, also link it. For Claude Code: ln -s ~/.agents/skills/'nextjs-security' ~/.claude/skills/'nextjs-security' (other agents: ~/.cursor/skills, ~/.copilot/skills, ~/.gemini/skills, ~/.gemini/config/skills, ~/.config/opencode/skills). Or install through the finder skill, which does both.

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Score history

Also found in

Identical copies of this skill exist at:

• yanacuti1121/Yana-AI/core/skills/gw360--nextjs-security