Business

Building MobX models with proper architecture, BaseModel patterns, Store usage, and validation

Post-session analysis agent that extracts learnings, decisions, user preferences, and "surprise moments" from conversation transcripts. Stores insights in Memory Lane with vector embeddings for future retrieval.

Generate comprehensive tests for Zustand stores with nested immutable updates, async actions, and persistence. Use when creating or modifying stores, writing tests, or debugging state issues. Keywords: zustand, store, testing, state, vitest, mock.

Refine requirements from discoveries during TDD/BDD implementation. Captures edge cases, race conditions, and business rules discovered by developers. Enables requirements refinement loop. Use when developers discover missing requirements during coding.

Runs Google Lighthouse audits using Playwright for SEO, Performance, Accessibility, and Best Practices scoring. Supports both URLs and local HTML files. Use when user mentions "Lighthouse", "page speed", "performance audit", "Core Web Vitals", "CWV", or needs comprehensive web performance analysis.

Track blog post performance and generate insights for continuous improvement. USE WHEN user says 'track post performance', 'analyze blog metrics', 'what posts performed well', 'blog analytics', OR requests performance feedback on content.

Domain-Driven Design patterns and architecture for Deno TypeScript applications. Use when building complex business logic, implementing bounded contexts, or structuring large-scale Deno applications with clear separation of concerns.

Create and edit blog posts for Ghost CMS. Use when creating blog post projections from ideas, editing existing posts, or working with Ghost frontmatter and SEO. Includes blog-specific voice, structure, and templates.

Implement comprehensive input validation on both client and server sides, using allowlists over blocklists, sanitizing user input, and providing specific error messages to prevent security vulnerabilities. Use this skill when writing validation logic for forms, API endpoints, function parameters, or any user input. Use this skill when implementing server-side validation to ensure data integrity and security, adding client-side validation for immediate user feedback, or sanitizing input to prevent injection attacks. Use this skill when working with form components, API route handlers, data processing functions, or validation schemas. Use this skill when defining validation rules for data types, formats, ranges, required fields, or business logic constraints across all application entry points.

Use when working with donations, payments, or Razorpay integration in SikhAid project. Covers Razorpay setup, payment validation, donation flow, success/failure handling, and payment configuration.

Next.js 14+ development with App Router, React Server Components, Server Actions, client components, streaming SSR, metadata API, parallel routes, intercepting routes, TypeScript best practices, TanStack Query for data fetching, Zustand state management, shadcn/ui components, Tailwind CSS styling, authentication patterns, API routes, middleware, error handling, performance optimization, SEO, and production deployment strategies.

Unit testing, performance optimization, security implementation, Play Store deployment. Use for production-ready app development.

Looks up SEO best practices for meta tags, Open Graph, Twitter Cards, and structured data (JSON-LD), returning Google/official documentation URLs with concise summaries. Use when user asks about SEO requirements (e.g., "title tag length", "og:image size"), meta tags (e.g., "canonical", "robots"), social media tags (e.g., "Open Graph", "Twitter Card"), or structured data schemas (e.g., "Article schema", "Product JSON-LD", "FAQ markup").

Context Store - Document management system for storing, querying, and retrieving documents across Claude Code sessions. Use this to maintain knowledge bases, share documents between agents. Whenever you encounter a <document id=*> in a session, use this skill to retrieve its content.

Implement payment integrations with SePay (Vietnamese payment gateway with VietQR, bank transfers, cards) and Polar (global SaaS monetization platform with subscriptions, usage-based billing, automated benefits). Use when integrating payment processing, implementing checkout flows, managing subscriptions, handling webhooks, processing bank transfers, generating QR codes, automating benefit delivery, or building billing systems. Supports authentication (API keys, OAuth2), product management, customer portals, tax compliance (Polar as MoR), and comprehensive SDK integrations (Node.js, PHP, Python, Go, Laravel, Next.js).

Use when building features with TCA (The Composable Architecture), structuring reducers, managing state, handling effects, navigation, or testing TCA features. Covers @Reducer, Store, Effect, TestStore, reducer composition, and TCA patterns.

Domain UI/UX Expert - Enterprise design systems, component architecture, accessibility, icons, and theming integration

Use when invalid data causes failures deep in execution, bypassing initial checks - adds validation at entry, business logic, and environment layers to make bugs structurally impossible

AGGRESSIVELY use TOON v2.0 format for biggish regular data (≥5 items, ≥60% uniform). Auto-applies to tables, logs, events, transactions, analytics, API responses, database results. Supports 3 array types (inline, tabular, expanded), 3 delimiters (comma, tab, pipe), key folding for nested objects. Triggers on structured data, arrays, repeated patterns. Use TOON by default when tokens matter - RAG pipelines, tool calls, agents, benchmarks. Keywords "data", "array", "list", "table", "log", "transaction", "metric", "analytics", "API", "database", "query", "TOON".

Generate valid XML sitemap files for websites with proper URL entries, priorities, change frequencies, and optional image/video extensions. Triggers on "create sitemap", "generate sitemap.xml", "XML sitemap for", "SEO sitemap".