Use this skill to prevent destructive operations when working on production systems or running agents autonomously.

Use this skill to validate the "why" before building, run product diagnostics, and pressure-test product direction before the request becomes an implementation contract.

Django architecture patterns, REST API design with DRF, ORM best practices, caching, signals, middleware, and production-grade Django apps.

ClickHouse database patterns, query optimization, analytics, and data engineering best practices for high-performance analytical workloads.

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Summarize URLs or files with the summarize CLI (web, PDFs, images, audio, YouTube).

Master TypeScript with advanced types, generics, and strict type safety. Handles complex type systems, decorators, and enterprise-grade patterns. Use PROACTIVELY for TypeScript architecture, type inference optimization, or advanced typing patterns.

Develop React Native, Flutter, or native mobile apps with modern architecture patterns. Masters cross-platform development, native integrations, offline sync, and app store optimization. Use PROACTIVELY for mobile features, cross-platform code, or app optimization.

Frontend development patterns for React, Next.js, state management, performance optimization, and UI best practices.

Automatically extract reusable patterns from Claude Code sessions and save them as learned skills for future use.

Expert in secure backend coding practices specializing in input validation, authentication, and API security. Use PROACTIVELY for backend security implementations or security code reviews.