Agent Skills
Instruction packs that give your AI agent know-how. Three different kinds — pick the right one below.
✦ Standalone skills2,933
Self-contained. Install one into any project and it works on its own — no other software needed.
🧰 Tool add-ons725
Come bundled with a specific tool and only work together with it — they teach your agent how to operate that tool.
sql-optimization
✓★ 36,200by github
Universal SQL performance optimization across MySQL, PostgreSQL, SQL Server, Oracle, and other databases. Covers query analysis, index strategy design, subquery optimization, and JOIN tuning with before/after examples for each technique Addresses common anti-patterns including SELECT *, function calls in WHERE clauses, inefficient pagination, and correlated subqueries Provides database-agnostic guidance on batch operations, temporary tables, covering indexes, and partial indexes Includes...
excalidraw-diagram-generator
✓★ 36,200by github
Generate Excalidraw diagrams from natural language descriptions in multiple formats. Supports nine diagram types: flowcharts, relationship diagrams, mind maps, architecture diagrams, data flow diagrams, swimlane business flows, class diagrams, sequence diagrams, and ER diagrams Outputs valid .excalidraw JSON files that open directly in Excalidraw or the VS Code extension Includes layout guidelines, element count recommendations, and color schemes for consistent visual design Optional...
breakdown-epic-arch
✓★ 36,200by github
Architectural planning prompt for translating product requirements into modular, scalable technical specifications. Generates comprehensive Epic Architecture Specifications in Markdown, including system diagrams, feature lists, and technology stack recommendations Enforces domain-driven design patterns with Docker containerization, TypeScript/Next.js, Turborepo monorepos, tRPC APIs, and Stack Auth authentication Produces Mermaid diagrams spanning user, application, service, data, and...
animation-vocabulary
★ 4,800by emilkowalski
Reverse-lookup glossary that turns a vague description of a web animation or motion effect into its exact term ("the bouncy thing when a popover opens" → Pop in; "the iOS rubber-band scroll" → Rubber-banding). Use when the user asks "what's it called when…", or describes a motion effect without knowing its name and wants the right word to prompt an AI or designer with. For naming an effect, not designing or building one.
golang-dependency-injection
★ 2,400by samber
Comprehensive guide for dependency injection (DI) in Golang. Covers why DI matters (testability, loose coupling, separation of concerns, lifecycle management), manual constructor injection, and DI library comparison (google/wire, uber-go/dig, uber-go/fx, samber/do). Use this skill when designing service architecture, setting up dependency injection, refactoring tightly coupled code, managing singletons or service factories, or when the user asks about inversion of control, service...
golang-structs-interfaces
★ 2,400by samber
Golang struct and interface design patterns — composition, embedding, type assertions, type switches, interface segregation, dependency injection via interfaces, struct field tags, and pointer vs value receivers. Use this skill when designing Go types, defining or implementing interfaces, embedding structs or interfaces, writing type assertions or type switches, adding struct field tags for JSON/YAML/DB serialization, or choosing between pointer and value receivers. Also use when the user...
golang-graphql
★ 2,400by samber
Implements GraphQL APIs in Golang using gqlgen or graphql-go. Apply when building GraphQL servers, designing schemas, writing resolvers, handling subscriptions, or integrating GraphQL with existing Go HTTP services. Also apply when the codebase imports `github.com/99designs/gqlgen` or `github.com/graph-gophers/graphql-go`.
golang-samber-mo
★ 2,400by samber
Monadic types for Golang using samber/mo — Option, Result, Either, Future, IO, Task, and State types for type-safe nullable values, error handling, and functional composition with pipeline sub-packages. Apply when using or adopting samber/mo, when the codebase imports `github.com/samber/mo`, or when considering functional programming patterns as a safety design for Golang.
graphql-schema
★ 90by apollographql
Industry best practices guide for designing intuitive, performant, and maintainable GraphQL schemas. Covers core design principles including client-centric type organization, explicit nullability patterns, and backwards-compatible evolution strategies Provides reference documentation on types, naming conventions, cursor-based pagination, error modeling, and security considerations Includes practical patterns for interfaces, unions, input types, mutations, and ID strategies with code examples...
building-dashboards
★ 10by axiomhq
Designs and builds Axiom dashboards via API. Covers chart types, APL and metrics/MPL query patterns, SmartFilters, layout, and configuration options. Use when…