[Extends frontend-developer] Angular 21 specialist. Use for Angular-specific features: Signals, zoneless change detection, NgRx SignalStore, standalone components, Signal Forms, Angular Aria. Invoke alongside frontend-developer for Angular projects.

Angular framework expert including components, services, RxJS, templates, and testing

Use when creating reactive forms with validation, async validators, dependent validation, and FormArrays using platform patterns.

Use Angular Material v3 components and theming following project patterns.

Angular frontend development patterns for [PROJECT_NAME]

Modernizes Angular code such as components and directives to follow best practices using both automatic CLI migrations and Bitwarden-specific patterns. YOU must use this skill when someone requests modernizing Angular code. DO NOT invoke for general Angular discussions unrelated to modernization.

Implement server-side rendering and hydration in Angular v20+ using @angular/ssr. Use for SSR setup, hydration strategies, prerendering static pages, and handling browser-only APIs. Triggers on SSR configuration, fixing hydration mismatches, prerendering routes, or making code SSR-compatible.

Use when implementing state management with PlatformVmStore for complex components requiring reactive state, effects, and selectors.

Write unit and integration tests for Angular v21+ applications using Vitest or Jasmine with TestBed, component harnesses, and modern testing patterns. Use for testing components with signals, OnPush change detection, services with inject(), and HTTP interactions. Triggers on test creation, testing signal-based components, mocking dependencies, or setting up test infrastructure.

Use Angular CLI and development tools effectively in Angular v20+ projects. Use for project setup, code generation, building, testing, and configuration. Triggers on creating new projects, generating components/services/modules, configuring builds, running tests, or optimizing production builds.

ANIMA as limit construction over condensed skill applications. Formalizes prediction markets as belief ANIMAs, structure dishes as condensation media, and impact as equivalence class change. Use for understanding agency at maximum entropy, compositional world modeling, or applying Scholze-Clausen condensed mathematics to AI.

User interface animations and transitions. When Claude needs to create performant, tasteful animations.

การสร้าง Animation ที่มีประสิทธิภาพและสวยงามเป็นสิ่งสำคัญในการสร้างประสบการณ์ผู้ใช้ (User Experience) ที่น่าประทับใจและแตกต่าง ในยุค Digital Transformation ที่ผู้ใช้คาดหวังการโต้ตอบที่ลื่นไหลและตอบสนอ

Expert in web animations, transitions, and motion design using Framer Motion and CSS

Ensures engaging user experience through validation of animations, transitions, micro-interactions, and feedback states, preventing flat/static interfaces that lack polish and engagement. Works with Tanstack Start (React) + shadcn/ui components.

Create smooth animations and micro-interactions with Framer Motion and CSS. Covers enter/exit animations, gestures, scroll animations, loading states, and performance optimization. Use for polished UIs, interactive elements, and engaging user experiences.

Applies Disney's 12 animation principles to UI motion design. Use when improving animation quality, designing micro-interactions, creating easing curves, or making transitions feel natural and purposeful.

Search and download ebooks from Anna's Archive, which indexes millions of books across formats (PDF, EPUB, MOBI, etc.).

Workflow for adding type annotations to Plain packages. Use this when adding or improving type coverage.

Infrastructure automation and configuration management using Ansible playbooks, roles, and inventory. Use for deploying applications, patching, and managing servers.

This skill guides writing Ansible playbooks for server configuration. Use when hardening servers, installing packages, or automating post-provisioning tasks that cloud-init cannot handle.

Generate and manage cross-platform Ansible playbooks for development environment setup across macOS, Linux, and Termux. Use when working with development environment automation, package installation configuration, or Ansible playbook generation.

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Expert-level Ansible for configuration management, automation, and infrastructure as code

ALWAYS use this skill immediately after running 'ansible-galaxy init' to create a new Ansible role. Also use when the user asks to fix ansible-lint errors or when ansible-lint output shows fixable issues like yaml[comments], schema[meta], meta-incorrect, name[play], or role-name[path] violations.

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Use when managing hosts and groups in Ansible inventory for organizing infrastructure and applying configurations across environments.

Configuration management with Ansible. Use when automating server setup, application deployment, orchestrating multi-server tasks, or managing infrastructure configuration.

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

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Ansible automation workflow guidelines. Activate when working with Ansible playbooks, ansible-playbook, inventory files (.yml, .ini), or Ansible-specific patterns.

Provides comprehensive answers about Ant Design components, documentation, and semantic descriptions using local knowledge base files. Use when asked about Ant Design, React UI components, design system, component semantics, or specific component usage.

Anthony Fu's opinionated tooling and conventions for JavaScript/TypeScript projects. Use when setting up new projects, configuring ESLint/Prettier alternatives, monorepos, library publishing, or when the user mentions Anthony Fu's preferences.

Determine the best Anthropic architecture for your project by analyzing requirements and recommending the optimal combination of Skills, Agents, Prompts, and SDK primitives.

Guide for creating high-quality MCP (Model Context Protocol) servers that enable LLMs to interact with external services through well-designed tools. Use when building MCP servers to integrate external APIs or services, whether in Python (FastMCP) or Node/TypeScript (MCP SDK).

Build rigorous evaluations for AI agents using Anthropic's proven patterns.

Comprehensive document creation, editing, and analysis with support for tracked changes, comments, formatting preservation, and text extraction. When Claude needs to work with professional documents (.docx files) for: (1) Creating new documents, (2) Modifying or editing content, (3) Working with tracked changes, (4) Adding comments, or any other document tasks

Comprehensive PDF manipulation toolkit for extracting text and tables, creating new PDFs, merging/splitting documents, and handling forms. When Claude needs to fill in a PDF form or programmatically process, generate, or analyze PDF documents at scale.

Presentation creation, editing, and analysis. When Claude needs to work with presentations (.pptx files) for: (1) Creating new presentations, (2) Modifying or editing content, (3) Working with layouts, (4) Adding comments or speaker notes, or any other presentation tasks

Master Anthropic's prompt engineering techniques to generate new prompts or improve existing ones using best practices for Claude AI models.

Use when integrating Claude API with streaming responses, implementing tool execution in streams, tracking API costs, or encountering streaming errors - provides Anthropic SDK 0.30.1+ patterns with mandatory cost monitoring

Transform AI-assisted drafts into authentic, human-sounding content. This skill provides patterns to detect and eliminate AI tells, frameworks for natural writing, and techniques for creating prose that reads as genuinely human. Use when reviewing any AI-generated content or when writing content that must not appear AI-assisted.

Guide for understanding anti-cheat systems and bypass techniques. Use this skill when researching game protection systems (EAC, BattlEye, Vanguard), anti-cheat architecture, detection methods, or bypass strategies.

Before implementing new code (endpoints, components, services, models), search the codebase for existing patterns to reuse. Prevent code duplication by finding and suggesting similar implementations. Auto-trigger when user asks to create, implement, add, or build new functionality.

Validate claims through tool execution, avoid superlatives and unsubstantiated metrics. Use when reviewing codebases, analyzing systems, reporting test results, or making any factual claims about code or capabilities.

Common testing mistakes to avoid for reliable, maintainable tests

Use when need to bypass Cloudflare protection, scrape websites with anti-bot measures, render JavaScript pages, or simulate real browser behavior for web scraping

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