Total 44,229 skills, Backend Development has 3831 skills
Showing 12 of 3831 skills
Use when querying data with Ecto.Query DSL including where clauses, joins, aggregates, preloading, and query composition. Use for building flexible database queries in Elixir applications.
Use when designing GraphQL schemas with Absinthe. Covers type definitions, interfaces, unions, enums, and schema organization patterns.
Ruby and Rails best practices for services, testing, and architecture. Use when: - Writing or reviewing Ruby/Rails code - Designing service objects or organizing business logic - Setting up RSpec tests with FactoryBot - Building APIs with JSON serialization - Optimizing Rails performance (N+1, caching) Keywords: Ruby, Rails, RSpec, FactoryBot, service object, strong params, N+1 query, Sidekiq, RuboCop, Thor CLI
Use when working with Ruby metaprogramming features including dynamic method definition, method_missing, class_eval, define_method, and reflection.
Run /check-stripe, then fix the highest priority Stripe issue. Creates one fix per invocation. Invoke again for next issue. Use /log-stripe-issues to create issues without fixing.
Use when implementing GraphQL resolvers with resolver functions, context management, DataLoader batching, error handling, authentication, and testing strategies.
Use when implementing compile-time metaprogramming in Crystal using macros for code generation, DSLs, compile-time computation, and abstract syntax tree manipulation.
Database design specialist for schema modeling, query optimization, indexing strategies, and data integrityUse when "database design, schema, indexes, query optimization, migrations, normalization, database scaling, foreign keys, data modeling, database, sql, postgres, mysql, mongodb, schema, indexes, migrations, normalization, optimization" mentioned.
Idiomatic Go patterns for errors, interfaces, concurrency, and packages. Use when: - Writing or reviewing Go code - Designing interfaces or package structure - Implementing concurrency patterns - Handling errors and context propagation - Structuring Go projects Keywords: Go, golang, error wrapping, interface design, goroutine, channel, context, package design, dependency injection, race condition
Stripe webhook health diagnostics. Invoke for: webhook delivery failures, pending_webhooks issues, redirect problems (307/308), subscription sync failures, pre-deployment webhook verification, incident investigation involving Stripe.
Render views and templates in Phoenix using HEEx templates, function components, slots, and assigns
Design database schemas for Grey Haven multi-tenant SaaS - SQLModel models, Drizzle schema, multi-tenant isolation with tenant_id and RLS, timestamp fields, foreign keys, indexes, migrations, and relationships. Use when creating database tables.