Coding standards, frameworks, refactoring, and code review (16.7K skills)
Turn a structure outline into code one phase at a time. A dedicated agent implements and checks each phase, while progress markers, human review, and commits keep the work organized and ready to resume.
Write and review React components by replacing direct useEffect calls with five purpose-specific patterns. It guides state calculations, data fetching, event handling, and component resets, with useMountEffect for external setup when a component first appears.
Prepare Riptide workspace settings by inspecting a project and proposing configuration files. Define Git worktrees, separate working directories for tasks, along with setup commands, copied files, and shared or machine-specific settings, then save approved configurations.
Review an existing design discussion without waiting for feedback. Check unstated assumptions against the codebase, examine implementation patterns, and add missing options or questions while preserving the agreed scope and resolved decisions.
Refine an existing technical design document through focused discussion. Compare design options with diagrams and code sketches, resolve one decision at a time, and update the relevant sections so the document consistently reflects agreed choices.
Turn existing product context into a technical design document through guided discussion. Settle system interactions first, then code structure, using diagrams and signatures to make decisions and tradeoffs clear for review.
Address bugs, adjustments, or follow-up features after implementation. Review the plan, code changes, and commit history to establish the current state, apply verified fixes, run tests and lint checks, and provide steps for further verification.
Convert one oRPC API procedure at a time from async handlers to Effect, a library for organizing asynchronous work and errors. Preserve routes, response formats, and authorization while updating service access, database operations, logging, and router wiring.
Integrate Yjs collaborative editing with durable streams over HTTP. Configure document updates and participant presence, manage connection lifecycles, and handle synchronization events, with guidance on required dependencies, binary data formats, and cleanup.
Revise an existing implementation outline using feedback, supporting documents, and codebase findings. Reorganize phases, adjust scope, incorporate answered questions, and define checks so each phase can be verified independently.
Design, implement, review, and test Effect v4 applications with explicit dependencies and typed errors. Covers external service connections, data decoding, resource cleanup, concurrency, logging, and tests that replace dependencies at meaningful system boundaries.
Update an existing design discussion using feedback checked against task documents and relevant code. Refine the proposed architecture, record decisions and their reasons, and separate resolved questions from issues that still need discussion.
Repair conflicting Drizzle migrations after a rebase by inspecting migration history, SQL files, and schema snapshots. The skill guides cleanup, regeneration of database change scripts, local application, and verification against the upstream branch.
Build Apple platform applications with Swift, including SwiftUI screens and state management. Design reusable interfaces with protocols, implement asynchronous tasks, protect shared data with actors, and check code through builds, performance profiling, and tests.
Design TypeScript types and APIs that catch mistakes such as mixed-up identifiers and missing state handling. Implement reusable types and runtime checks that narrow types, configure tRPC for shared client-server types, and improve compiler settings.
Build Vue 3 applications using JavaScript and JSDoc comments that describe data types. Create components and reusable logic, configure Vite, routing, and state management, and check annotations and behavior with ESLint and Vitest.
Build Java REST APIs and microservices with Spring Boot 3.x, including database access, authentication, and reactive endpoints for nonblocking request handling. The skill also guides testing and application health checks.
Build custom WordPress themes, plugins, and editor blocks, extend WooCommerce stores, and add REST API endpoints. The skill also guides input protection, permission checks, caching, and database query tuning to improve security and performance.
Read existing code to reconstruct system specifications, including architecture, data flows, APIs, and business rules. Produces documentation tied to code locations, separating observed behavior from inferences and questions that need clarification.
Build Vue 3 components and reusable logic, manage shared application data with Pinia, and configure Nuxt 3 projects. Supports mobile apps, offline web features, TypeScript checks, component tests, and Vite build optimization.
Build and debug Shopify themes, custom apps, and storefronts connected through APIs. The skill covers Liquid templates, app authentication, checkout extensions, performance improvements, and the configuration, testing, and deployment steps needed for implementation.
Investigate slow SQL, write complex joins and summaries, and design database structures. Uses execution plans, which show how queries run, to guide index choices and query rewrites, with before-and-after performance measurements.
Build real-time messaging with WebSocket or Socket.IO, including authentication, chat rooms, online status, and reconnection. Provides server and client code, plus guidance on using Redis to share messages across multiple servers and monitor connections.
Write, review, and debug Rust applications, including ownership and borrowing rules that govern memory use. Covers trait-based APIs, explicit error handling, asynchronous work with tokio, and tests with Cargo validation.