Scripting

This skill should be used when the user asks to "investigate code", "analyze implementation", "find patterns", "understand codebase", "debug issue", "find bug", "troubleshoot", or needs evidence-based code analysis and debugging. Provides systematic investigation and debugging methodology.

This skill should be used when the user asks to "write typescript", "typescript config", "tsconfig", "type definition", "generics", "utility types", or works with TypeScript language patterns and configuration. Provides comprehensive TypeScript ecosystem patterns and best practices.

Execute Python tests with pytest, supporting fixtures, markers, coverage, and parallel execution. Use for Python test automation.

Run ESLint for JavaScript/TypeScript code quality and style enforcement. Use for static analysis and auto-fixing.

Execute JavaScript/TypeScript tests with Vitest, supporting coverage, watch mode, and parallel execution. Use for JS/TS test automation.

Create, manage, and validate Python virtual environments. Use for project isolation and dependency management.

Use this skill when creating new Claude Code skills from scratch, editing existing skills to improve their descriptions or structure, or converting Claude Code sub-agents to skills. This includes designing skill workflows, writing SKILL.md files, organizing supporting files with intention-revealing names, and leveraging CLI tools and Node.js scripting.

Premium app generation that creates WOW-factor experiences. Multi-page apps with smooth animations, zero TypeScript errors, and production-ready quality. Lovable-style experience: one prompt, complete app, instant delight. MUST be used alongside vibe-orchestrator for new projects.

Write type-safe TypeScript code with strict mode enabled, comprehensive type definitions, proper error handling, and elimination of any types. Use when enabling TypeScript strict mode, adding types to existing JavaScript, fixing type errors, creating type definitions, using utility types, implementing type guards, avoiding any types, creating generic types, or ensuring complete type safety across the codebase.

Designs deliberate practice exercises applying evidence-based learning strategies like retrieval practice, spaced repetition, and interleaving. Activate when educators need varied exercise types (fill-in-blank, debug-this, build-from-scratch, extend-code, AI-collaborative) targeting learning objectives with appropriate difficulty progression. Creates exercise sets that apply cognitive science principles to maximize retention and skill development. Use when designing practice activities for Python concepts, creating homework assignments, generating problem sets, or evaluating exercise quality.

Use when working with Ruby blocks, procs, lambdas, and functional programming patterns including closures and higher-order functions.

Use when structuring and reusing code with Ansible roles for modular, maintainable automation and configuration management.

Use when working with TypeScript's type system including strict mode, advanced types, generics, type guards, and compiler configuration.

Master Python asynchronous programming with asyncio, async/await, and concurrent.futures. Use for async code and concurrency patterns.

Use when working with Ruby gems, Bundler for dependency management, creating gemspecs, and publishing gems to RubyGems.

Use when working with Zustand in TypeScript projects. Covers type-safe store creation, typed selectors, and advanced TypeScript patterns with Zustand.

Use when working with Ruby metaprogramming features including dynamic method definition, method_missing, class_eval, define_method, and reflection.

Use when working with Ruby's object-oriented programming features including classes, modules, inheritance, mixins, and method visibility.

Use when formatting JavaScript/TypeScript code with Biome's fast formatter including patterns, options, and code style management.

Use when mocha test structure, hooks, and async testing patterns for JavaScript testing.