Coding standards, frameworks, refactoring, and code review (15K skills)
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.
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.
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.
Update JSON translation files using each string’s actual screen context and project terminology. Review missing translations and source-copy changes, preserve file structure and dynamic-value placeholders, and prepare focused edits with validation results for review.
Build clinical decision support for electronic medical records, covering drug interactions, dose validation, clinical risk scores, and alerts. Provides patterns for testable checking functions, severity-based interface behavior, and safety tests that detect missed warnings.
Write and review Java services using conventions for naming, immutable data, exception handling, project structure, and tests. Detects Spring Boot or Quarkus from build files and applies the relevant framework rules.
Develop applications through separate planning, building, and evaluation agents. The workflow tests the running app, scores its design and functionality, and feeds specific issues back into repeated development cycles with configurable quality thresholds and iteration limits.
Implement asynchronous work and changing data streams in Android and Kotlin Multiplatform apps using Kotlin Coroutines and Flow. Apply patterns for parallel loading, UI state updates, cancellation, error handling, and tests that check emitted values.
Build and review React or Next.js interfaces using practical patterns for reusable components, state management, data fetching, forms, and rendering performance. Includes keyboard navigation and focus management to support accessible interactions.
Extract unwritten coding conventions from an existing project and turn them into an AI style rules file. Resolve conflicting patterns with the user, identify example files, and update the rules as the codebase changes.
Configure a Claude hook, a check before tool execution, that pauses initial edits and file creation to request concrete facts. It prompts investigation of callers, data structures, and user instructions, with separate checks for destructive commands.
Review Flutter and Dart code using a checklist that adapts to the project's state management library. Check interface structure, asynchronous operations, performance, tests, accessibility, and security to identify issues across the application.
Build Kotlin database access with JetBrains Exposed, a library that maps database records to code. Apply examples for queries, transactions, reusable connections, schema migrations, and repository interfaces that separate database operations from business logic.
Establish a Git workflow for team development, from choosing branches for separate changes to writing clear commits and pull requests. Includes history cleanup, merge versus rebase decisions, conflict resolution, and release tagging.
Package Python apps as Windows installers using Nuitka and Inno Setup. Review compilation settings, remove unnecessary files, and analyze DLLs, shared library files, to reduce package size and improve startup behavior.
Design or refactor services so business rules stay separate from databases, APIs, and frameworks. Uses Ports and Adapters—interfaces and their implementations—to define clear boundaries, test workflows, and migrate existing code one feature at a time.
Guides electronic medical record development, covering visit workflows, prescriptions, and clinical data entry. Provides patterns for medication interaction alerts, abnormal result displays, audit trails, and accessible interfaces that keep patient information visible during care.
Design and improve database access in Spring Boot with JPA/Hibernate, tools that map Java objects to database tables. Covers relationships, queries, transactions, and pagination, including fixes for excessive database queries.
Write, review, and refactor Go applications using established language conventions. The skill covers error handling, concurrent tasks, interfaces, package structure, memory use, and development commands to support clear, maintainable code.
Build and review React and Next.js interfaces for keyboard use and screen readers, tools that read content aloud. Apply practical patterns for form labels, error messages, accessible controls, and focus movement.
Build or review FastAPI applications using examples for project structure, input validation, authentication, permission checks, and asynchronous processing. Organize database updates in a separate business logic layer and test API behavior with httpx and pytest.
Turn unclear feature requests or high-impact changes into acceptance criteria: observable conditions for judging completion. Define scope, assumptions, risks, and verification methods, or review an existing specification so another agent or team can implement it with clearer requirements.
Look up current library and framework documentation through Context7 MCP, a connection to live documentation tools. Supports setup questions, API references, and code examples, using version-specific sources when available to ground answers in retrieved material.
Write or review Dart and Flutter apps with practical patterns for state management, navigation, networking, error handling, and tests. Use code examples to handle missing values, organize widgets, and connect login status to routing.