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Found 847 Skills
Configures TypeScript projects, defines types and interfaces, writes generics, and implements type guards. Use when setting up tsconfig.json, creating type definitions, or ensuring type safety in JS/TS codebases.
Service layer patterns with createTaggedError, namespace exports, and Result types. Use when creating new services, defining domain-specific errors, or understanding the service architecture.
Gate 4: API contracts document - defines component interfaces and data contracts before protocol/technology selection. Large Track only.
Provides naming conventions and Props type definition patterns for React components. Defines naming rules for file names and component names, Props type definitions using the ComponentNameProps pattern, and best practices for React 19. Use this when referencing component creation, naming convention checks, Props type definition, refactoring, and ESLint/TypeScript error resolution.
Guide for creating custom Claude Code slash commands. Use when user wants to create a new command (or update an existing command) that provides a reusable prompt snippet, workflow, or automation. Triggers on requests to create /commands, slash commands, custom commands, or when user wants to define frequently-used prompts as reusable commands.
Authorization and permissions management for Ruby on Rails applications using CanCanCan. Use when: (1) Implementing role-based access control (RBAC), (2) Defining user permissions and abilities, (3) Restricting resource access in controllers, (4) Filtering queries based on user permissions, (5) Hiding/showing UI elements based on authorization, (6) Testing authorization logic, (7) Managing admin vs user vs guest permissions, (8) Implementing attribute-based access control
Use when defining GitLab CI jobs, configuring scripts, setting up environments, or managing job dependencies. Covers job structure and execution options.
Use when designing GraphQL schemas with Absinthe. Covers type definitions, interfaces, unions, enums, and schema organization patterns.
Use when working with Ruby metaprogramming features including dynamic method definition, method_missing, class_eval, define_method, and reflection.
Use when configuring Fnox secrets management with fnox.toml. Covers file structure, secrets definition, profiles, and hierarchical configurations.
Writing effective step definitions and organizing test code
Design state schemas, implement reducers, configure persistence, and debug state issues for LangGraph applications. Use when users want to (1) design or define state schemas for LangGraph graphs, (2) implement reducer functions for state accumulation, (3) configure persistence with checkpointers (InMemorySaver/MemorySaver, SqliteSaver, PostgresSaver), (4) debug state update issues or unexpected state behavior, (5) migrate state schemas between versions, (6) validate state schema structure, (7) choose between TypedDict and MessagesState patterns, (8) implement custom reducers for lists, dicts, or sets, (9) use the Overwrite type to bypass reducers, (10) set up thread-based persistence for multi-turn conversations, or (11) inspect checkpoints for debugging.