single-responsibility
Apply SRP to a change request: identify mixed responsibilities, propose the smallest split, and keep interfaces minimal (paired with Occam/tool-first).
tool-first-assembly
Apply Tool-First, Then Assembly during implementation: extract the smallest reusable tool(s) first, then wire them via assembly in outer layers without increasing coupling.
unidirectional-data-flow
Enforce unidirectional data flow in a change: define explicit commands, keep writes in Application, expose state via signals, and isolate side effects at boundaries.
mcp-context7
Use the Context7 MCP server (@upstash/context7-mcp) to fetch authoritative, version-appropriate library documentation snippets (Angular, NgRx Signals, Firebase, RxJS, Playwright); use when you must confirm API usage, signatures, or best practices without relying on memory.
mcp-playwright
Use the Playwright MCP server (@playwright/mcp) for browser-driven verification, screenshots, console logs, and UI flow validation; use when debugging or validating Angular UI behavior beyond unit tests.
mcp-sequential-thinking
Use the sequential thinking MCP server (@modelcontextprotocol/server-sequential-thinking) to break down complex problems into ordered, testable steps; use when the task requires careful multi-step reasoning, risk reduction, or dependency-sensitive refactors.
mcp-software-planning
Use the Software-planning-mcp MCP server (github:NightTrek/Software-planning-mcp) to generate requirements, designs, task breakdowns, and execution plans for changes in this repo; use when you need structured planning artifacts (requirements/design/tasks) before implementation.
minimal-stable-interface
Apply MSI to a change: minimize exports, define ports/events at boundaries, and keep APIs intention-revealing and deletion-friendly.
vscode-ext-commands
Guidelines for contributing commands in VS Code extensions. Indicates naming convention, visibility, localization and other relevant attributes, following VS Code extension development guidelines, libraries and good practices
black-tortoise-ui-reviewer
Black-Tortoise UI review and fixes. Use when asked to review UI, layout, or design in this repo. Focus on Angular 20 + standalone components, Material Design 3 tokens, @ngrx/signals state, and DDD layer boundaries. Checks responsiveness, a11y, spacing, and M3 token usage; applies minimal fixes in presentation styles/templates.
webapp-testing
Toolkit for interacting with and testing local web applications using Playwright. Supports verifying frontend functionality, debugging UI behavior, capturing browser screenshots, and viewing browser logs.
workflows-orchestration
Workflow orchestration patterns for src/app/workflows, focusing on application-layer use cases, long-running flows, event-driven coordination, and deterministic state transitions; use when implementing multi-step user journeys or cross-capability processes.
redis-expert
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zig-expert
Comprehensive Zig 0.15.2 development expert. Use when writing Zig code, debugging memory issues, designing build systems, implementing comptime metaprogramming, handling errors, or cross-compiling. Automatically activated for any .zig file or build.zig work.
bun-expert
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elysiajs-expert
Expert guidance for ElysiaJS web framework development. Use when building REST APIs, GraphQL services, or WebSocket applications with Elysia on Bun. Covers routing, lifecycle hooks, TypeBox validation, Eden type-safe clients, authentication with JWT/Bearer, all official plugins (OpenAPI, CORS, JWT, static, cron, GraphQL, tRPC), testing patterns, and production deployment. Assumes bun-expert skill is active for Bun runtime expertise.
postgresql-expert
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agent-browser
Automates browser interactions for web testing, form filling, screenshots, and data extraction. Use when the user needs to navigate websites, interact with web pages, fill forms, take screenshots, test web applications, or extract information from web pages.
compound-engineering
Compound Engineering workflow for AI-assisted development. Use when planning features, executing work, reviewing code, or codifying learnings. Follows the Plan → Work → Review → Compound loop where each unit of engineering makes subsequent work easier. Triggers on: plan this feature, implement this, review this code, compound learnings, create implementation plan, systematic development.
frontend-design
Create distinctive, production-grade frontend interfaces with high design quality. Use this skill when the user asks to build web components, pages, or applications. Generates creative, polished code that avoids generic AI aesthetics.
prd
Generate a Product Requirements Document (PRD) for a new feature. Use when planning a feature, starting a new project, or when asked to create a PRD. Triggers on: create a prd, write prd for, plan this feature, requirements for, spec out.
docx
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
ralph
Autonomous feature development - setup and execution. Triggers on: ralph, set up ralph, run ralph, run the loop, implement tasks. Two phases: (1) Setup - chat through feature, create tasks with dependencies (2) Loop - pick ready tasks, implement, commit, repeat until done.
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.
supabase-best-practices
Supabase security and performance guidelines with Clerk authentication integration. Contains 40+ rules across 10 categories covering RLS policies, Clerk setup, database security, and more.
Announcement Drafter
Write clear, impactful company announcements for any audience
Billing Manager
Manage billing operations including invoice generation, payment tracking, and subscription lifecycle
AI Safety Auditor
Audit AI systems for safety, bias, and responsible deployment
Automation Architect
Design workflow automations using Zapier, Make, n8n, and other automation tools
Audience Segmenter
Segment audiences for targeted marketing and personalized messaging
appstore-readiness
Expert iOS App Store submission and approval system. 9 specialized agents providing senior App Review Team-level expertise across compliance, design, privacy, monetization, metadata, technical requirements, timing, rejection recovery, and learning. Triggers on keywords like app store, iOS submission, apple review, app rejection, aso, privacy manifest, privacy labels, ATT, iap, in-app purchase, subscription, storekit, review guidelines, HIG, testflight, app store connect.
api-documentation-writer
Expert guide for writing comprehensive API documentation including OpenAPI specs, endpoint references, authentication guides, and code examples. Use when documenting APIs, creating developer portals, or improving API discoverability.
A/B Test Designer
Design statistically valid A/B tests for marketing optimization
Accounts Reconciler
Automate account reconciliation by matching transactions, identifying discrepancies, and generating variance reports
Ad Copy Writer
Write high-converting advertising copy for paid media campaigns
Advisory Board Builder
Recruit, structure, and manage advisory boards for strategic guidance
Affiliate Marketing Manager
Set up and manage affiliate marketing programs for growth and revenue
Agent Orchestrator
Coordinate multiple AI agents and skills for complex workflows
Agent Workflow Builder
Build multi-agent AI workflows with orchestration, tool use, and state management
AI Integration Specialist
Integrate AI tools and APIs into business workflows and applications
javascript
Write modern JavaScript/ES6+ code following best practices for performance, security, and maintainability. Use when writing JS code, fixing bugs, or implementing frontend functionality.
bug-fix
Systematically diagnose and fix bugs by reproducing issues, identifying root causes, implementing fixes, and preventing regressions. Use when debugging errors, fixing issues, or troubleshooting problems.
css-styling
Write modern, maintainable CSS using best practices for layouts, responsive design, animations, and CSS architecture. Use when styling websites, fixing CSS issues, or implementing designs.
html-markup
Write semantic, accessible HTML5 markup following best practices for structure, SEO, and accessibility. Use when creating HTML templates, fixing markup issues, or building web page structures.
email-marketing
Create email marketing campaigns including newsletters, drip sequences, promotional emails, and transactional emails. Use when writing email copy, designing email templates, or planning email automation.
accessibility
Web accessibility (a11y) best practices for WCAG 2.1 AA compliance, ARIA attributes, keyboard navigation, screen reader support, and inclusive design. Use when auditing accessibility, implementing accessible features, fixing a11y issues, or when user mentions WCAG, accessibility, screen readers, or keyboard navigation.
api-endpoint
Create REST or GraphQL API endpoints with proper validation, error handling, authentication, and documentation. Use when building backend APIs or serverless functions.
graphql
GraphQL API development including schema design, resolvers, queries, mutations, subscriptions, and integration with Node.js, Apollo, and other frameworks. Use when building GraphQL APIs, designing GraphQL schemas, implementing resolvers, or debugging GraphQL issues.
code-review
Perform thorough code reviews focusing on security, performance, best practices, and maintainability. Use when reviewing PRs, checking code quality, or auditing existing code.
cleanup
Weekly Claude Code maintenance - cleans debug logs, shell snapshots, and old todo files to free up disk space. Run this weekly to keep Claude Code lean.
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