Coding standards, frameworks, refactoring, and code review (14.9K skills)
Build React Native and Expo screens with guidance on navigation, state management, and data fetching. Apply patterns for long lists, validated forms, device features, and secure token storage when developing or reviewing mobile apps.
Research existing solutions before implementing a feature. Search project code, package registries, agent tools, and GitHub, then compare functionality, maintenance, licensing, and dependencies to decide whether to adopt, extend, combine, or build.
Set up Plankton hooks in Claude Code to format and lint files after each edit. Route remaining violations to Claude for fixes, verify the results, and protect linter settings from changes that weaken checks.
Turn a design or requirements document into a working MVP, a minimal product, through small end-to-end feature slices. It coordinates scaffolding, repeated generation and evaluation, reviews, and approval gates, with separate commits for the scaffold and each slice.
Build interactive animations in React or Next.js, including draggable elements, swipe gestures, animated text, SVG line drawing, and loading indicators. Guides API selection and multi-step animation sequences, with touch testing and cleanup practices.
Write, review, and refactor Kotlin code using established conventions. Covers safe handling of missing values, immutable data, coroutines for asynchronous work, and type-safe configuration builders, helping keep application code readable and maintainable.
Review MySQL and MariaDB database designs and production problems, including slow queries, locking, connection pools, and replica delays. Get concrete SQL or code changes and a validation plan that accounts for differences between engines and versions.
Measure and improve delays in realtime dashboards, data feeds, queues, and caches. Track response times, data age, and waiting work separately, then verify that changes improve the actual behavior of a deployed system.
Coordinate code refactoring, restructuring code while preserving its behavior. Check existing tests before changes, work in small steps, review the result, and pause for approval of the plan and before committing.
Add animations to React and Next.js interfaces, including buttons, modals, notifications, page transitions, and scrolling content. Uses shared motion settings and reusable patterns for elements entering, leaving, moving, or changing size.
Operate and extend NanoClaw, an interactive command environment with sessions stored in Markdown. Resume, branch, search, compact, and export sessions, or switch models and load skills through slash commands.
Build and review Nuxt 4 applications with consistent server and browser rendering. Guide data fetching, page rendering and caching rules, and deferred loading to address rendering mismatches and improve performance.
Prepare a private project for public release by creating a separate copy, removing sensitive information, checking for remaining risks, and generating documentation, setup scripts, and license files for review before publishing.
Coordinate bug fixes by assigning each phase to an appropriate ECC agent. First reproduce the problem with a failing test, then fix it, review the changes, and request approval before committing.
Coordinate feature work, bug fixes, refactoring, and MVP development through shared phases scaled to the change. Related operation skills use this workflow to delegate research, planning, test-first implementation, review, and commits with human approval checkpoints.
Change an existing feature that works but needs different behavior. The skill updates tests to reflect the new requirements, adjusts the implementation, and coordinates review with approval checkpoints before committing the changes.
Build and maintain MCP servers that let AI assistants use tools, read data, and access reusable prompts. Covers Node/TypeScript implementation, input validation, transport choices for local or remote clients, and registration or connection troubleshooting.
Guide development and debugging in Next.js 16 and later using Turbopack, a tool that bundles application code. Review slow startup, live updates, caching, webpack alternatives, bundle analysis, and version-specific proxy file naming.
Guides Kotlin HTTP server development with Ktor through examples for API routes, authentication, JSON conversion, and WebSockets. Shows how to organize application components with Koin and verify routes and authentication using integration tests.
Build or review NestJS backends with clear module boundaries, request validation, access controls, and consistent error handling. The skill guides TypeScript service structure, environment configuration, database integration, and testing for production use.
Build a shared animation foundation for React and Next.js with motion/react. Define reusable timing and spring settings, respect reduced-motion preferences, adapt to device performance, and align initial animation states with server-rendered content.
Coordinate a new feature from research and planning through tests, implementation, review, and commit. Assign phases to matching ECC agents, write failing tests before implementation, and pause for approval of the plan and before committing.
Implement and review Ethereum hashing in JavaScript or TypeScript using Keccak-256. Learn which library helpers to use and avoid confusing it with Node's SHA3 when calculating function identifiers, signature hashes, storage locations, or addresses.
Find Laravel packages for specific features through LaraPlugins.io MCP, a connection to its package search tools. Check maintenance indicators, release history, and Laravel/PHP compatibility to compare candidates before adding a package to a project.