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Found 161 Skills
Use when invalid data causes failures deep in execution, requiring validation at multiple system layers - validates at every layer data passes through to make bugs structurally impossible
Load PROACTIVELY when task involves building a complete feature across multiple layers. Use when user says "build a feature", "add user profiles", "create a dashboard", or any request spanning database, API, UI, and tests. Orchestrates multi-agent work sequentially: schema and migrations, API endpoints, UI components, tests, and review. Handles dependency ordering and cross-layer type sharing.
Requirement-level progressive roadmap planning with JSONL output. Decomposes requirements into convergent layers (MVP→iterations) or topologically-sorted task sequences, each with testable completion criteria.
Use when the user asks to implement FSD, use Feature-Sliced Design, organize architecture, structure project folders, set up FSD layers, create feature slices, refactor to FSD, or mentions feature slices, layered architecture, FSD methodology, views layer, entities layer, shared layer, Next.js with FSD. Provides comprehensive guidance for implementing Feature-Sliced Design (FSD v2.1) in Next.js applications. Optional monorepo (Turborepo) support - see references/monorepo.md.
Effect-TS best practices for services, errors, layers, schemas, and testing. Use when writing/reviewing Effect code, implementing services, handling errors, or composing layers.
API Gateway patterns for routing, authentication, rate limiting, and service composition in microservices architectures. Use when implementing API gateways, building BFF layers, or managing service-to-service communication at scale.
Build complete React features with proper layered architecture including UI components, business logic, API integration, and state management. Use this skill when users request implementing features like "user authentication", "shopping cart", "product listing", "file upload", or any complete functionality that requires UI + business logic + data fetching. Generates all layers - presentation (components), business logic (hooks/stores/validation), and data access (API calls/React Query). Integrates with react-component-generator for UI and provides production-ready, maintainable code following best practices.
Requirement-level progressive roadmap planning with issue creation. Decomposes requirements into convergent layers or task sequences, creates issues via ccw issue create, and generates roadmap.md for human review. Issues stored in .workflow/issues/issues.jsonl (single source of truth).
Expert in improving code structure without changing behavior. Specializes in Design Patterns, SOLID principles, and Anti-Corruption Layers.
Go backend development standards using DDD architecture, ent ORM, fx DI, and kiwi-lib utilities. Covers project structure, domain design, API/application/infrastructure layers, database workflow, and coding requirements.
Comprehensive guide and toolkit for creating advanced LINE Flex Messages with complex layouts, video integration, and implementing reliable API retry mechanisms with X-Line-Retry-Key. Use when creating sophisticated Bot UIs, handling high-load messaging, or designing robust communication layers for LINE.
Run a full-scale implementation review with parallel subagents for plan alignment, UI verification, technical and strategic analysis, and test coverage gap closure across app and database layers.