Databases

Expert guidance for TanStack Query (React Query) including queries, mutations, caching, invalidation, optimistic updates, pagination, and infinite queries. Use this when managing server state in React applications.

Master Redis Cluster - horizontal scaling, hash slots, resharding, cluster management, and distributed architecture

Design and implement database schemas using SQLModel with sync and async patterns. Use this skill when creating database models, setting up Neon PostgreSQL connections, defining relationships (one-to-many, many-to-many), implementing FastAPI dependency injection, or migrating schemas. Covers both sync Session and async AsyncSession patterns.

Query the CV knowledge base to find achievements, stories, and metrics by theme, skill, company, or keyword. Use when user asks about experience, wants to find specific accomplishments, or needs data for content generation.

Review code for quality, bugs, security issues, and best practices. Use this skill when the user asks for code review, code analysis, or wants feedback on their code.

Master Power BI development including DAX formulas, Power Query M, data modeling, and report optimization

List cache entries with filtering, sorting, and freshness status. Delegates to fractary CLI for actual cache operations.

Run a one-shot command in a sandbox (creates, executes, destroys). Requires authentication. Use for Agentuity cloud platform operations

Frontend development guidelines for React/TypeScript applications. Modern patterns including Suspense, lazy loading, useSuspenseQuery, file organization with features directory, MUI v7 styling, TanStack Router, performance optimization, and TypeScript best practices. Use when creating components, pages, features, fetching data, styling, routing, or working with frontend code.

Prisma ORM patterns - use for database access in Next.js, schema design, migrations, transactions, and relations

Teetsh frontend code review for React/TypeScript PRs. Reviews component architecture, React Query, twin.macro styling, i18n, accessibility, responsive design, and testing. Use for PR reviews to ensure adherence to Teetsh patterns.

Django Redis caching with django-cacheops. This skill should be used when implementing caching, adding cache invalidation, optimizing API performance, modifying models that affect cached data, or debugging cache-related issues in the Django backend.

Build with D1 serverless SQLite database on Cloudflare's edge. Use when: creating databases, writing SQL migrations, querying D1 from Workers, handling relational data, or troubleshooting D1_ERROR, statement too long, migration failures, or query performance issues.

Comprehensive checklist and prevention strategies for common Ruby on Rails errors. Use this skill BEFORE writing any Rails code to prevent ViewComponent template errors, ActiveRecord query mistakes, method exposure issues, N+1 queries, and other common Rails pitfalls. Trigger keywords: errors, bugs, security, validation, prevention, pitfalls, debugging, exceptions, error handling

Database specialist covering PostgreSQL, MongoDB, Redis, and advanced data patterns for modern applications

Perl開発支援（Mojolicious/DBI/Carton）。 モダンPerl、perlcritic、Test::Moreでガイド。

Configure MongoDB connection and test infrastructure. Use when adding MongoDB support to the project. Triggers on "setup mongodb", "add mongodb", "configure database", "mongodb connection".

Handles FABER workflow feedback requests - posting to issues and tracking responses

Detect common security vulnerabilities in code. Covers OWASP patterns, SQL injection, bare excepts, shell injection. Framework-agnostic.

Evaluate reasoning quality by watching for logical errors, biases, and flawed inferences in real-time. Use when: (1) building multi-step arguments with dependent reasoning chains, (2) making claims about causation or logical necessity, (3) receiving feedback that challenges your approach or reasoning, (4) noticing you're pattern-matching or applying familiar solutions without verification