Design

Enforces project documentation structure in docs/plans/ directories - research.md for facts, design.md for decisions, tasks.md for implementation, thoughts/ for explorations.

Run credibility checks on feature interpretations including split-half stability and shuffle null tests

Эксперт conversational AI. Используй для chatbot flows, dialog design, NLU intents и conversational UX.

Building database queries with the Options API

Orchestrate end-to-end feature development from requirements through implementation, testing, and review. Use when: (1) planning feature development stages, (2) coordinating multi-agent feature workflows, (3) understanding SDLC phases for new features.

Generates a rigorous experiment design given a hypothesis. Use when asked to design experiments, plan experiments, create an experimental setup, or figure out how to test a research hypothesis. Covers controls, baselines, ablations, metrics, statistical tests, and compute estimates.

Comprehensive skill for writing high-converting, AI-optimised website copy that combines Generative Engine Optimization (GEO) with strategic copywriting psychology. Use when: (1) Writing new website copy, landing pages, or marketing content, (2) Performing SEO audits or content reviews, (3) Optimising content for AI Answer Engines (Google AI, Perplexity, ChatGPT), (4) Implementing Schema markup (JSON-LD structured data), (5) Writing B2B or B2C-specific copy, (6) Creating About Us pages or brand storytelling content, (7) Writing microcopy, error messages, or UX text, (8) Ensuring accessibility and inclusive language.Invoke with: /write-website-copy, /audit-seo, /generate-schema, /validate-content, or say "use the website-copy-standards skill to..."

Commitlint configuration and GitHub Copilot commit message instruction templates with validation logic for conventional commit enforcement. Includes 6 required standards (conventional format, relaxed subject rules for Copilot compatibility, optional scope, Husky integration, required dependencies, Copilot instruction consistency). Use when creating or auditing commitlint.config.js and .copilot-commit-message-instructions.md files.

Professional technical documentation specialist that creates clear, comprehensive documentation including API references, user guides, READMEs, integration guides, and developer tutorials

Implements Firebase Authentication with email, OAuth, phone auth, and custom tokens. Use when building apps with Firebase, needing flexible auth methods, or integrating with Firebase ecosystem.

Build AI agents using prompt-native architecture where features are defined in prompts, not code. Use when creating autonomous agents, designing MCP servers, implementing self-modifying systems, or adopting the "trust the agent's intelligence" philosophy.

Master Kotlin syntax, OOP principles, SOLID practices, functional programming, and data structures. Use when writing Kotlin code or designing class hierarchies.

Guide for using GitHub Projects V2 with teams, status fields, and modern workflows. Use when setting up projects, explaining workflow, onboarding team members, or troubleshooting GitHub Projects. Covers teams (@developers, @product, @qa, @client), Status field with Blocked state, Priority/Type fields, epics, sub-issues, and label cleanup strategies.

Find the best backend architecture, database design, and API patterns using deep research. Use when user asks "best database for...", "optimize API", "backend architecture for...", or "scale this service".

Proactive security engineering for PAI projects. USE WHEN user needs threat modeling, CMMC compliance baseline, security requirements, vulnerability analysis, or security-first design. Prevents security issues during design, not after deployment.

Create interactive terminal prompts using questionary for user input. Use when building forms, selection menus, and confirmation dialogs.

Guide for documenting project components and features. Creates or updates documentation in docs/components/ by exploring git changes to understand implementation details. Provides templates and conventions for consistent, developer-friendly component catalogs.

Production-tested setup for AutoAnimate (@formkit/auto-animate) - a zero-config, drop-in animation librarythat automatically adds smooth transitions when DOM elements are added, removed, or moved. This skill shouldbe used when building UIs that need simple, automatic animations for lists, accordions, toasts, or form validationmessages without the complexity of full animation libraries.Use when: Adding smooth animations to dynamic lists, building filter/sort interfaces, creating accordion components,implementing toast notifications, animating form validation messages, needing simple transitions without animation code,working with Vite + React + Tailwind, deploying to Cloudflare Workers Static Assets, or encountering SSR errors withanimation libraries.Keywords: auto-animate, @formkit/auto-animate, formkit, zero-config animation, automatic animations, drop-in animation,list animations, accordion animation, toast animation, form validation animation, lightweight animation, 2kb animation,prefers-reduce

Guide for implementing web accessibility following W3C WAI principles (WCAG) when designing, developing, or reviewing web interfaces

Complete Three.js building system with spatial indexing, structural physics, and multiplayer networking. Use for survival/crafting games, sandbox games, multiplayer construction, or any 3D building mechanics.