Skill UI

This comprehensive index provides access to 32 production-ready, specialized engineering skills. It covers the entire development lifecycle, including system architecture, frontend, backend, DevOps, security operations, AI/ML, and data engineering. It is designed to guide users in selecting and loading only the specific module needed, ensuring focused expertise for complex tasks.

Opinionated Terraform workflow skill that guides module design, state/backend management, provider patterns, security hardening, policy-as-code checks, and CI/CD plan/apply flows so IaC stays modular, compliant, and reliable.

A comprehensive framework for penetration testing APIs, designed to detect and exploit critical injection flaws. It covers SQL injection (SQLi), NoSQL injection, OS command injection, LDAP injection, and Server-Side Request Forgery (SSRF). This skill guides the testing of all input vectors—including path parameters, headers, query strings, and request bodies—to assess input validation and backend security posture against industry standards like OWASP.

This comprehensive guide details advanced techniques for detecting and exploiting NoSQL injection vulnerabilities across various databases like MongoDB and CouchDB. It covers critical attack vectors, including authentication bypass using operators ($ne, $gt), blind data extraction via $regex, and executing arbitrary server-side JavaScript through the $where clause. Essential reading for penetration testers and security researchers assessing NoSQL backends.

This skill covers implementing robust API rate limiting and throttling controls using advanced algorithms like token bucket and sliding window. It teaches how to protect backend systems against attacks such as brute force, credential stuffing, and resource exhaustion. Key components include configuring limits per user, per IP, and per endpoint, utilizing Redis for distributed counting, and implementing proper HTTP 429 responses for effective abuse prevention.

A comprehensive guide to building production-grade Laravel applications. It details architectural patterns for achieving scalability and maintainability, covering service/action separation, advanced Eloquent usage (casts, scopes), dependency injection via service containers, and robust API routing patterns.

This skill is designed for implementing and managing user verification workflows within a Laravel PHP framework. It facilitates processes such as email confirmation, password reset validation, and ensuring data integrity for secure application access. It is essential for robust web backend development.

This skill guides comprehensive security testing for Host Header Injection vulnerabilities in web applications. It simulates attacks to identify critical risks such as password reset poisoning, web cache poisoning, Server-Side Request Forgery (SSRF), and virtual host routing manipulation. It is essential for penetration testers assessing backend security behind proxies and load balancers.

A comprehensive guide and toolkit for performing deep security assessments on mobile application backends. It covers identifying vulnerabilities such as broken authentication, insecure token management (JWT, opaque tokens), session fixation, privilege escalation, and IDOR (Broken Object-Level Authorization) across various OAuth flows (OIDC, PKCE). Essential for penetration testers assessing API security.

Automatically reverse-engineers any codebase (frontend, backend, or fullstack) into a comprehensive Product Requirements Document (PRD). It analyzes complex elements like routes, components, API integrations, state management, and business logic across major stacks (React, Vue, Next.js, Django, FastAPI). The resulting PRD is detailed enough for both product managers (understanding 'what') and engineers/AI agents (understanding 'how' to reconstruct the system).

Provides end-to-end guidance for fine-tuning and serving Physical Intelligence’s OpenPI pi0 family (pi0, pi0-fast, pi0.5) with both JAX and PyTorch backends, covering dataset prep, norm stats, checkpoint conversion, and low-latency WebSocket policy inference for ALOHA, DROID, and LIBERO tasks.

Hono is a minimal and ultrafast web framework built entirely on Web Standards (Request/Response/fetch). It allows developers to build high-performance APIs and full-stack applications that run seamlessly across multiple environments, including Cloudflare Workers, Deno, Bun, and Node.js. It is ideal for edge deployment, Backend for Frontend (BFF) layers, and type-safe backend services.