Databases

Optimize AgentDB performance with quantization (4-32x memory reduction), HNSW indexing (150x faster search), caching, and batch operations. Use when optimizing memory usage, improving search speed, or scaling to millions of vectors.

Creates and manages CSS and JavaScript animations (keyframes, transitions, sprite animations, canvas animations). Use when adding visual animations or user feedback

Systematic CSV import process - discover structure, design schema, standardize formats, import to database, detect quality issues (component skill for DataPeeker analysis sessions)

Comprehensive guide for Docker MCP Toolkit Dynamic Tools - discover and use ~170 MCP servers on-demand. Use when working with MCP servers, dynamic tools, database access, APIs, cloud services, or needing external integrations during conversations.

Notion MCP integration specialist for workspace management, database operations, page creation, and knowledge extraction. Use when integrating Notion workspaces, managing databases, or automating documentation workflows.

1500+ lines of backend integration mastery - REST APIs, GraphQL, WebSockets, authentication, Firebase, error handling with production-ready code examples.

Deep performance analysis for Rails 8 applications focusing on N+1 queries, database indexing, and caching strategies. Use when investigating slow endpoints, detecting N+1 queries, optimizing database indexes, or reviewing caching before deployment.

Apply when handling file uploads, downloads, and storage management in Supabase.

Manage Todo operations (Create, Read, Update, Delete) using SQLModel and Postgres. Use when the user wants to organize tasks.

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.

Implement data persistence using SQLite with Dapper, JSON files, or event sourcing. Use when: "database", "save data", "store", "CRUD", "create table", "query", "SQL", "SQLite", "Dapper", "file storage", "JSON file", "event sourcing", "persistence", "read from database", "write to database", "data access", "repository". Creates code in src/Server/Persistence.fs with async I/O patterns.

Shared utilities for file deprecation, directory structure creation, TODO file updates, workflow lifecycle management, archive management, and VCS abstraction (GitHub/Azure DevOps PR feedback methods). Used by all other skills. Use when: Need shared utilities, deprecating files, updating TODO, registering/archiving workflows, managing TODO.md manifest, VCS operations, PR feedback handling Triggers: deprecate, archive, update TODO, create directory, register workflow, archive workflow, sync manifest, VCS operations, PR feedback

Analyzes Stellaris save data by creating and running python code using a MCP tool providing a sandboxed environment. The Python code retrieves data from Stellaris saves by accessing GraphQL API.

Claude가 판례 Markdown 파일을 직접 분석하여 JSON 메타데이터를 생성합니다.

Reviews Advent of Code TypeScript solutions for code quality, TypeScript idioms, and performance. Use when asked to review a day's solution, critique AoC code, or get feedback on puzzle implementations.

Integration with AppFlowy project management tool for task tracking, database management, and workspace organization. Use when working with AppFlowy, managing project tasks, creating databases, organizing workspaces, syncing agent work with project tracking, syncing documentation or tasks to AppFlowy, setting up automated sync workflows, or when the user mentions AppFlowy, project tracking, task management, or sync automation. Includes generic sync script that works with ANY project. Supports rich text formatting (bold, italic, code, links, strikethrough) and git pushsync workflow for automated syncing.

SvelteKit remote functions guidance. Use for command(), query(), form() patterns in .remote.ts files.

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".

Production-ready Auth.js v5 setup for Next.js and Cloudflare Workers. Use when: setting up authentication, implementing OAuth/credentials/magic links, configuring D1 or PostgreSQL adapters, debugging session issues, migrating from v4 to v5, fixing edge compatibility, troubleshooting JWT/database sessions, resolving AUTH_SECRET errors, fixing CallbackRouteError, or implementing RBAC. Covers: Next.js App Router & Pages Router, Cloudflare Workers + D1, OAuth providers (GitHub, Google, etc.), credentials auth, magic links, JWT vs database sessions, middleware patterns, role-based access control, token refresh, edge runtime compatibility, and common error prevention. Keywords: Auth.js, NextAuth.js, authentication, OAuth, credentials, magic links, D1 adapter, Cloudflare Workers, Next.js middleware, JWT session, database session, refresh tokens, RBAC, edge compatibility, AUTH_SECRET, CallbackRouteError, CredentialsSignin, JWEDecryptionFailed, session not updating, route protection

Create database tables with Prisma ORM, migrations, and RLS policies. Use when user needs "create database table", "add [model] model", "set up RLS", "create migration", "store data in database", or "design schema". Generates Prisma models with proper naming conventions, creates migrations, sets up Row-Level Security policies, and syncs test database. Includes WorldCrafter patterns for relationships, tags, comments, activity logs, versions, world membership, collections, wiki pages, and bookmarks. Typically the FIRST skill for new features. Do NOT use for UI/forms (use worldcrafter-feature-builder), simple routes (use worldcrafter-route-creator), tests only (use worldcrafter-test-generator), or auth logic only (use worldcrafter-auth-guard).