菜单
Implement security best practices with Clerk authentication. Use when securing your application, reviewing auth implementation, or hardening Clerk configuration. Trigger with phrases like "clerk security", "secure clerk", "clerk best practices", "clerk hardening".
默认使用会先检查来源的 Prompt；你也可以切换为直接命令，或下载本地副本。
决定是否安装前，请先阅读 SKILL.md，以及 SkillsMP 当前展示的配套文件。
用 Codex 或 Claude 帮你安装 复制这段 Prompt，粘贴到 Codex、Claude 或其他助手里，让它检查 Skill 页面并帮你完成安装。
直接命令不会经过审查 Prompt；运行前请先检查来源。
npx skills add https://github.com/jeremylongshore/claude-code-plugins-plus-skills --skill clerk-security-basics命令会保持在同一行。复制前请横向滚动并检查完整内容。
想先保存到本地？可下载 SkillsMP 当前能够提供的文件。
Implement user sign-up and sign-in flows with Clerk. Use when building authentication UI, customizing sign-in experience, or implementing OAuth social login. Trigger with phrases like "clerk sign-in", "clerk sign-up", "clerk login flow", "clerk OAuth", "clerk social login".
Implement session management and middleware with Clerk. Use when managing user sessions, configuring route protection, or implementing token refresh and custom JWT templates. Trigger with phrases like "clerk session", "clerk middleware", "clerk route protection", "clerk token", "clerk JWT".
Configure enterprise SSO, role-based access control, and organization management. Use when implementing SSO integration, configuring role-based permissions, or setting up organization-level controls. Trigger with phrases like "clerk SSO", "clerk RBAC", "clerk enterprise", "clerk roles", "clerk permissions", "clerk organizations".
正在显示 SKILL.md
基于 SOC 职业分类
| name | clerk-security-basics |
| description | Implement security best practices with Clerk authentication. Use when securing your application, reviewing auth implementation, or hardening Clerk configuration. Trigger with phrases like "clerk security", "secure clerk", "clerk best practices", "clerk hardening". |
| allowed-tools | Read, Write, Edit, Grep |
| version | 1.14.0 |
| license | MIT |
| author | Jeremy Longshore <jeremy@intentsolutions.io> |
| tags | ["saas","clerk","security","authentication"] |
| compatibility | Designed for Claude Code, also compatible with Codex and OpenClaw |
Implement security best practices for Clerk authentication: environment variable protection, middleware hardening, API route defense, webhook verification, and session security.
# .env.local — never commit this file
NEXT_PUBLIC_CLERK_PUBLISHABLE_KEY=pk_live_... # Safe to expose (public)
CLERK_SECRET_KEY=sk_live_... # NEVER expose client-side
CLERK_WEBHOOK_SECRET=whsec_... # Server-only
# .gitignore — ensure secrets stay out of git
.env.local
.env.*.local
.env.production
Validate at startup that secret keys are not leaked:
// lib/security-check.ts
export function assertServerOnly() {
if (typeof window !== 'undefined') {
throw new Error('This module must only be used server-side')
}
if (!process.env.CLERK_SECRET_KEY) {
throw new Error('CLERK_SECRET_KEY is not configured')
}
}
// middleware.ts
import { clerkMiddleware, createRouteMatcher } from '@clerk/nextjs/server'
import { NextResponse } from
isPublicRoute = ([
,
,
,
,
])
( (auth, req) => {
(!(req)) {
auth.()
}
response = .()
response..(, )
response..(, )
response..(, )
response..(
,
)
response
})
// app/api/admin/route.ts
import { auth } from '@clerk/nextjs/server'
import { NextRequest } from 'next/server'
export async function POST(req: NextRequest) {
const { userId, has } = await auth()
// 1. Verify authentication
if (!userId) {
return Response.json({ error: 'Unauthorized' }, { status: 401 })
}
// 2. Verify authorization (permission-based, not role-based)
if (!has({ permission: 'org:admin:access' })) {
return Response.json({ error: 'Forbidden' }, { status: 403 })
}
// 3. Validate and sanitize input
const body = await req.json()
if (typeof body.name !== 'string' || body.name.length > 200) {
return Response.json({ error: 'Invalid input' }, { status: 400 })
}
// 4. Rate limit sensitive operations
// (Use a rate limiter like @upstash/ratelimit)
return Response.json({ success: true })
}
// app/api/webhooks/clerk/route.ts
import { Webhook } from 'svix'
import { headers } from 'next/headers'
export async function POST(req: Request) {
const secret = process.env.CLERK_WEBHOOK_SECRET
if (!secret) {
// Log but don't expose internal state
console.error('Missing CLERK_WEBHOOK_SECRET')
return new Response('Internal error', { status: 500 })
}
const headerPayload = await headers()
const svixHeaders = {
'svix-id': headerPayload.get('svix-id') || '',
'svix-timestamp': headerPayload.get('svix-timestamp') || '',
'svix-signature': headerPayload.get('svix-signature') || '',
}
// Reject requests missing required headers
if (!svixHeaders['svix-id'] || !svixHeaders['svix-signature']) {
return new Response('Missing verification headers', { status: 400 })
}
const body = await req.text()
const wh = new Webhook(secret)
try {
const event = wh.verify(body, svixHeaders)
// Process verified event...
return new Response('OK', { status: 200 })
} catch {
// Don't leak verification details
return new Response('Verification failed', { status: 400 })
}
}
// Enforce session checks in sensitive operations
import { auth } from '@clerk/nextjs/server'
export async function dangerousAction() {
const { userId, sessionId } = await auth()
if (!userId || !sessionId) {
throw new Error('Valid session required')
}
// For extra-sensitive operations, verify the session is fresh
// by checking session claims or requiring re-authentication
const { sessionClaims } = await auth()
const sessionAge = Date.now() / 1000 - (sessionClaims?.iat || 0)
if (sessionAge > 300) { // 5 minutes
throw new Error('Session too old for this operation. Please re-authenticate.')
}
}
Configure session settings in Clerk Dashboard:
| Error | Cause | Solution |
|---|---|---|
| Secret key exposed client-side | Imported in client component | Move to server-only module, add assertServerOnly() |
| CSP blocks Clerk UI | Missing Clerk domain in CSP | Add *.clerk.accounts.dev to frame-src |
| Webhook verification fails | Clock skew on server | Ensure server time is NTP-synced |
| Session too old error | User idle too long | Prompt re-authentication for sensitive actions |
import { Ratelimit } from '@upstash/ratelimit'
import { Redis } from '@upstash/redis'
import { auth } from '@clerk/nextjs/server'
const ratelimit = new Ratelimit({
redis: Redis.fromEnv(),
limiter: Ratelimit.slidingWindow(5, '60 s'),
})
export async function POST() {
const { userId } = await auth()
if (!userId) return Response.json({ error: 'Unauthorized' }, { status: 401 })
const { success } = await ratelimit.limit(userId)
if (!success) return Response.json({ error: 'Rate limited' }, { status: 429 })
// Proceed with operation
}
Proceed to clerk-prod-checklist for production readiness review.