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Comprehensive guide and practical snippets to design and harden APIs: authentication, input validation, rate limiting, data protection, and testing patterns to
This skill equips agents with prescriptive API security guidance and ready-to-use code patterns for building and auditing secure APIs. It covers authentication (JWT/OAuth), input validation, rate limiting, secure error handling, and DDoS mitigation, with code examples for Node/Express and recommendations for production-grade deployments.
Use during API design, security reviews, audits, or when applying fixes for vulnerabilities (injection, broken auth, improper error handling). Also useful for adding rate limits, token refresh flows, and safe logging practices.
Best for code-aware assistants and developers working in Node/Express, Prisma, or other JS backends; applicable to auditors using static analysis tools and security-focused agents (Codex/Claude Code/Copilot).
A comprehensive API security best-practices skill covering JWT auth, input validation, rate limiting, data protection, and OWASP API Top 10. Well-structured with practical code examples in Node.js. No bundled scripts — purely a reference/guidance skill. Examples follow proper security patterns (parameterized queries, bcrypt, env vars for secrets). Could serve as a solid starting point for developers hardening their APIs.
Clean skill with no security concerns. Teaches defensive patterns. No scripts to run. Frontmatter has risk: unknown which is honest. Examples correctly avoid hardcoded secrets and show env var usage throughout.
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