Summary
Implements the three main CSRF protection patterns: synchronizer tokens, double-submit cookies, and SameSite attributes. You get Express middleware with proper timing-safe comparison, session token generation, and form integration examples. The guide walks through when to apply each method and shows the HTML side too. Covers Flask and React implementations in the references. Honestly, the best part is it doesn't just dump code at you. It explains why you need multiple layers and calls out the common mistakes like thinking auth alone protects you or storing tokens in localStorage. Solid reference when you're hardening state-changing endpoints.
Install to Claude Code
npx -y skills add secondsky/claude-skills --skill csrf-protection --agent claude-codeInstalls into .claude/skills of the current project.
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SKILL.md
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Plug Mailtrap into your AI workflow and let it handle the email.
Connect Mailtrap MCP →Agent, run crypto. Access onchain data & trade routes via 1inch.
Install now →Make coding agent sessions - Searchable, Shareable, Vendor-neutral & Scored.
Try For Free →Your agent targets a perfect 10 Code Health score. Deterministic. Every commit.
Try For Free →Integrate web data into your AI product. One API to scrape website & brand data.
Get API Key Now →belt cli automatically finds the best tools and skills for your agent. image, video, music, tts...
one prompt install →
