d3-visualization
D3 ecosystem guidance for designing and implementing interactive charts/diagrams in Angular (signals-first, accessible, performant).
core-design-principles
Apply Black-Tortoise design principles (Occam, cohesion/coupling, tool-first assembly, explicit boundaries, deletion-friendly evolution) to a concrete change request; use as a pre-flight checklist before writing code.
cohesion-coupling-review
Review a proposed change for high cohesion/low coupling; recommends the smallest boundary-safe refactor (ownership, minimal public surface, no reach-in imports).
centralized-state-distributed-behavior
Apply centralized state + distributed behavior to a change: choose the single source of truth, keep writes through explicit commands, and place behavior in the correct owning layer.
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.
quality-gates
Auditing, testing, and architecture-governance instructions for Black-Tortoise, covering when to run `architecture:gate`, update docs/AUDIT-*, ship tests, and satisfy `.github/instructions/64-quality-testing-copilot-instructions.md` before merge.
security-privacy
Pre-flight security & privacy checklist for changes touching identity, data, logging, or external integrations; ensures secrets/PII hygiene and boundary-safe design.
shared-kernel
Shared kernel rules for src/app/shared, defining what can be shared safely (primitives, utilities, UI atoms) and what must not (business logic, cross-context policies); use when adding shared helpers or components.
shell-ui
Shell module patterns for src/app/shell, covering global UI state, layout composition, navigation, theming with Material Design 3 tokens, and zone-less signal-first presentation boundaries; use when changing app chrome or global UI concerns.
side-effect-isolation
Enforce side-effect isolation: identify side effects, move them to boundary adapters/effects, keep Domain pure, and keep UI declarative with signals.
signals-first
Enforce 'Signals first, streams when needed' in a change: keep UI state as signals, isolate streams to boundaries, and convert Observables at the Application/facade boundary.
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.
bun-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.
redis-expert
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postgresql-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.
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.
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.
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.
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.
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.
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
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.
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.
Agent Orchestrator
Coordinate multiple AI agents and skills for complex workflows
Billing Manager
Manage billing operations including invoice generation, payment tracking, and subscription lifecycle
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
AI Safety Auditor
Audit AI systems for safety, bias, and responsible deployment
Announcement Drafter
Write clear, impactful company announcements for any audience
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.
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.
Audience Segmenter
Segment audiences for targeted marketing and personalized messaging
Automation Architect
Design workflow automations using Zapier, Make, n8n, and other automation tools
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
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.
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.
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.
documentation
Write clear technical documentation for themes, plugins, and web products including installation guides, configuration docs, API references, tutorials, and changelogs. Use when creating user guides, developer docs, or help articles.
devops
DevOps practices for web development including Docker, CI/CD, deployment, monitoring, and infrastructure as code. Use when setting up deployment pipelines, containerizing applications, configuring servers, or implementing DevOps workflows.
database
Database design, optimization, and management for SQL and NoSQL databases. Covers schema design, indexing, query optimization, migrations, and database best practices. Use when designing database schemas, optimizing queries, troubleshooting database performance, or implementing data models.
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