design-for-deletion
Apply 'design for deletion' to a change: define the deletion path, avoid cross-context entanglement, and keep shared additions minimal and enduring.
e2e-playwright
Best practices for E2E testing with Playwright, focusing on Angular 20, Firebase Emulators, and Architecture Guards.
eventing-hub
Event-sourcing and EventBus directives for Black-Tortoise, covering structured event schemas, append-before-publish flow, causality/id rules, and safe subscribers; use when touching src/app/eventing, EventBus, or any event handlers/projections.
evolution-maintainability
Apply evolution & maintainability principles to a change: keep interfaces minimal, improve ownership/naming, prefer deletion-friendly refactors, and align with quality gates.
explicit-boundaries
Enforce explicit boundaries in a change: place code in the right layer, keep capability isolation, use ports/adapters and events, and align with architecture gate rules.
firebase-platform
Firebase services, platform guides, and tips for integration with Angular projects.
integration-layer
Infrastructure and integration patterns for src/app/integration, including Firebase/AngularFire usage, Data Connect codegen, repository adapters, DTO mapping, and streaming boundaries; use when touching persistence, external APIs, or platform SDKs.
material-design-3
Material Design 3 (Material You) design system knowledge for modern web and Angular applications. Use when implementing Material Design 3 theming, components, typography, color systems, dynamic color, accessibility patterns, or migrating from Material Design 2. Covers design tokens, theming APIs, and Material You principles.
mcp-codacy
Use the Codacy MCP server (@codacy/codacy-mcp) to run static analysis, retrieve findings, and focus remediation on high-signal issues; use when you need code quality feedback aligned with repo gates (lint, build, architecture:gate).
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.
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
workspace-context
Workspace context patterns for src/app/workspace, including workspace lifecycle, stable context signals, workspace switching, and event emission for other modules; use when changing workspace selection, hydration, or context providers.
account-identity
Identity and account patterns for src/app/account, including AngularFire Auth integration, signal-first auth state, route guards, and security boundaries; use when touching auth, user/session state, or account UI flows.
angular-ecosystem
Useful Angular libraries, tools, and ecosystem references for Angular development.
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.
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.
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.
postgresql-expert
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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.
redis-expert
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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.
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.
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.
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
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.
A/B Test Designer
Design statistically valid A/B tests for marketing optimization
Billing Manager
Manage billing operations including invoice generation, payment tracking, and subscription lifecycle
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.
Announcement Drafter
Write clear, impactful company announcements for any audience
AI Safety Auditor
Audit AI systems for safety, bias, and responsible deployment
AI Integration Specialist
Integrate AI tools and APIs into business workflows and applications
Agent Workflow Builder
Build multi-agent AI workflows with orchestration, tool use, and state management
Agent Orchestrator
Coordinate multiple AI agents and skills for complex workflows
Affiliate Marketing Manager
Set up and manage affiliate marketing programs for growth and revenue
Advisory Board Builder
Recruit, structure, and manage advisory boards for strategic guidance
Ad Copy Writer
Write high-converting advertising copy for paid media campaigns
Accounts Reconciler
Automate account reconciliation by matching transactions, identifying discrepancies, and generating variance reports
git-workflow
Follow Git best practices for commits, branches, pull requests, and version control workflows. Use when making commits, creating PRs, managing branches, or resolving conflicts.
frontend-design
Create distinctive, production-grade frontend interfaces with high design quality. Use this skill when the user asks to build web components, pages, artifacts, posters, or applications (examples include websites, landing pages, dashboards, React components, HTML/CSS layouts, or when styling/beautifying any web UI). Generates creative, polished code and UI design that avoids generic AI aesthetics.
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.
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.
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.
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