Database
Database management and queries
data-systems-architecture
by ratacat
Use when designing databases for data-heavy applications, making schema decisions for performance, choosing between normalization and denormalization, selecting storage/indexing strategies, planning for scale, or evaluating OLTP vs OLAP trade-offs. Also use when encountering N+1 queries, ORM issues, or concurrency problems.
dhh-rails-style
by ratacat
This skill should be used when writing Ruby and Rails code in DHH's distinctive 37signals style. It applies when writing Ruby code, Rails applications, creating models, controllers, or any Ruby file. Triggers on Ruby/Rails code generation, refactoring requests, code review, or when the user mentions DHH, 37signals, Basecamp, HEY, or Campfire style. Embodies REST purity, fat models, thin controllers, Current attributes, Hotwire patterns, and the "clarity over cleverness" philosophy.
culinary-assistant
by nweii
"Culinary guidance for cooking, recipes, and meal planning. Use for kitchen techniques, substitutions, and format conversion (Mela, Schema.org). Handles recipe parsing and improvements."
aid-finances
by nweii
"Expert financial guidance for budgeting, investments, and retirement planning. Use for analyzing market strategies, debt management, or general personal finance questions."
use-tailwind-v4
by nweii
"Tailwind CSS v4 reference and migration guide. Use for v4 projects, syntax changes, upgrading from v3, and troubleshooting v4-specific utility patterns or configuration differences."
using-heavy-mcps
by nweii
"Use mcporter and jq to reduce token bloat from heavy MCPs like Sanity or Brain vault. Filter and compact tool outputs outside chat to feed only essential data back to the model."
migrating-to-swift-concurrency
by kylehughes
Provides the complete Swift Concurrency Migration Guide. Use when migrating to Swift 6, resolving data-race safety errors, understanding Sendable and actor isolation, or incrementally adopting async/await.
ezorm-skills
by ezbuy
Entry point for ezorm repo skills. Use to pick the right skill based on task (write YAML vs generate code, and mongo vs mysql/mysqlr).
resolve-pegasus-conflicts
by saaspegasus
Resolve merge conflicts when upgrading SaaS Pegasus. Use when the user has merge conflicts after running git merge during a Pegasus upgrade, or when they need help with the merge process. Also use when the user mentions 'merge pegasus".
drizzle-orm
by joncrangle
Drizzle ORM for TypeScript - type-safe SQL queries, schema definitions, migrations, and relations. Use when building database layers in Next.js or Node.js applications.
sql-performance-review
by hubert-dudek
Review and improve Databricks SQL queries for correctness, readability, and performance (joins, filters, aggregations, partition pruning). Use when someone pastes a SQL query, asks why it is slow, or requests a rewrite/optimization in Databricks SQL.
lang-python
by joncrangle
This skill should be used when the user asks to "write Python code", "debug a Python script", "set up a Python project", "explain Python concepts", or mentions Python-specific libraries like FastAPI, Django, or Pandas.
update
by assistant-ui
Update assistant-ui and AI SDK to latest versions. Detects current versions, identifies breaking changes, and executes migrations.
nextjs-navigation
by goncy
Provides expert guidance on Next.js App Router navigation, prefetching behavior, and Link component configuration. Use when working with Next.js navigation, Link prefetching, or App Router routing.
Manifest Generator
by daffy0208
Auto-generate capability manifests from skill/MCP descriptions using Codex-powered semantic analysis and structured extraction.
Archon Manager
by daffy0208
Master Archon MCP for strategic project management, task tracking, and knowledge base operations. The strategic layer (WHAT/WHEN) that coordinates with Skills (HOW). Use when managing projects, tracking tasks, querying knowledge bases, or implementing the Archon+Skills two-layer architecture.
trigger-config
by triggerdotdev
Configure Trigger.dev projects with trigger.config.ts. Use when setting up build extensions for Prisma, Playwright, FFmpeg, Python, or customizing deployment settings.
changelog
by v1-io
Use when generating a changelog from recent merged PRs or documenting releases. Triggers on "write changelog", "release notes", "what shipped".
elfeed
by markus1189
Search the user's Emacs elfeed RSS feed database containing curated feeds from Reddit, blogs, YouTube, GitHub releases, and newsletters. Use when the user asks about articles they've read, mentions RSS feeds or 'something I read', wants to research topics from their curated sources (programming, AI, security, NixOS, Emacs, etc.), or needs to triage unread items.
testing-react-with-vitest
by bnadlerjr
Expert guidance for writing Vitest tests for React applications using React Testing Library. Covers component tests, custom hooks, utility tests, sociable testing philosophy, and the RTL query priority system. Favors sociable tests over heavy mocking, stubs over mocks. Use when working with .test.ts/.test.tsx files, vitest.config.ts, React Testing Library, @testing-library/user-event, @testing-library/jest-dom, renderHook, or when discussing React testing patterns, component testing, hook testing, or test organization.
better-t-stack
by DimitriGilbert
Expert guidance for using the Better-T-Stack CLI to scaffold type-safe TypeScript projects. Use when creating new projects, adding features to existing projects, or troubleshooting compatibility issues.
creating-agent-skills
by bnadlerjr
Expert guidance for creating, writing, and refining Claude Code Skills. Use when working with SKILL.md files, authoring new skills, improving existing skills, or understanding skill structure and best practices.
developing-elixir
by bnadlerjr
Comprehensive Elixir/Phoenix development expertise covering Phoenix controllers, routing, channels; LiveView components and real-time features; Ecto schemas, queries, migrations; OTP patterns (GenServer, Supervisor); functional domain modeling; GraphQL with Absinthe; and ExUnit testing. Use when working with .ex/.exs files, mix projects, Phoenix applications, or when the user mentions Elixir, Phoenix, Ecto, LiveView, OTP, GenServer, Supervisor, Absinthe, or ExUnit. Also use for defmodule, mix.exs, umbrella apps, or iex sessions.
testing-elixir
by bnadlerjr
Provides expert guidance for writing ExUnit tests in Elixir. Covers core ExUnit patterns, assertions, sociable testing philosophy, Ecto sandbox and database testing, Phoenix controller/LiveView/channel tests, and external API testing with Bypass and Req.Test. Use when working with ExUnit tests, assertions, describe blocks, test organization, Bypass, Req.Test, factories, ExMachina, Ecto sandbox, ConnTest, LiveViewTest, ChannelTest, or test helpers.