Development

Validates Implementation Phase completion before advancing to Testing Phase. Checks code compilation, test coverage, implementation completeness, and code quality standards.

Delegate asynchronous coding tasks to Jules (Google's AI coding agent) to maximize efficiency. Use for code reviews, refactoring, adding tests, bug fixes, and documentation. Proactively suggest Jules delegation when appropriate. Invoke when user asks to interact with Jules, create sessions, check task status, or when tasks are suitable for async delegation.

Collects the user's body weight and provide aggregations, charts and trends. Responds to commands like "today I'm 90Kg", "I gained 1Kg since yesterday", "What's my weekly average in the last 2 months?"

Design token system using Style Dictionary with Tailwind CSS v4 integration.Centralizes design tokens in JSON format, outputs CSS variables mapped to @theme block.Reference for implementing consistent theming across UI components.

Index of AI agent skills and how to use them when implementing features in this repo.

Design and build modern UI components and pages using shadcn/ui. Creates clean, accessible interfaces with Tailwind CSS following shadcn principles. Use when building UI components, pages, forms, dashboards, or any interface work.

LangChain LLM application framework with chains, agents, RAG, and memory for building AI-powered applications

TypeScript-first schema validation library with static type inference for form validation, API validation, and runtime type checking with compile-time types.

Senior-level React and Tailwind CSS development expert with 10+ years experience. Automatically audits, generates, and optimizes React applications with focus on hooks, Context API, performance, security, and modern Tailwind styling. Use for React component generation using TypeScript, hook optimization, security audits, responsive design implementation, animation, Context API patterns, performance optimization, and project structure analysis. Ensures clean code, prevents backend data exposure, and follows senior-level best practices.

Vite + React template with TypeScript. Clone, setup, build, and deploy to Vercel or Netlify.

High-performance Rust optimization. Profiling, benchmarking, SIMD, memoryoptimization, and zero-copy techniques. Focuses on measurable improvementswith evidence-based optimization.

Use when implementing features from Jira tickets, PRDs, or user requirements. Orchestrates Research-Plan-Implement workflow with quality gates for hallucination, overengineering, and underengineering detection.

Create Claude Code skills with proper structure and documentation. Use when building custom skills, writing SKILL.md files, or when user asks "write a skill" or "create Claude skill".

This skill should be used when deciding whether to "delegate to codex", "hand off to codex", "use codex for this", or when Claude needs to determine if a task is appropriate for Codex vs handling directly. Provides decision criteria for task routing between Claude and Codex.

Transform a Vibes app into a multi-tenant SaaS with subdomain-based tenancy. Adds Clerk authentication, subscription gating, and generates a unified app with landing page, tenant routing, and admin dashboard.

Use when creating or modifying Claude Code slash commands - command development with frontmatter, arguments handling, and namespacing for November 2025 specifications

Create new Claude Code skills with proper SKILL.md structure, frontmatter, and best practices. Use when building new skills for this repository.

shadcn/ui component library for React with Tailwind CSS - copy-paste accessible components with full code ownership. Use when building React applications needing customizable UI components with Next.js, Vite, or Remix integration.

This skill should be used when the user asks to find and fix SwiftUI performance issues, optimize SwiftUI views, fix re-render problems, or analyze why their iOS/macOS app UI is slow. It handles the full workflow from code review to trace analysis.

Perform in-depth audits of Rust code, covering ownership, concurrency, unsafe blocks, traits, and Cargo dependencies.