Code reviews often become bottlenecks or sources of team friction. This skill provides structured techniques for giving constructive feedback, conducting thorough reviews, and turning every review into a knowledge-sharing opportunity that improves code quality and team collaboration.

Most landing pages fail because they skip the brand identity step. This skill guides users through a structured brand interview, then generates a polished landing page with a matching design system using the Stitch SDK.

Recurring billing systems are complex to design and maintain. This skill provides clear patterns for subscriptions, invoicing, dunning, proration, and taxes.

Large Bazel builds can become slow and hard to maintain. This skill provides proven templates and workflows to improve speed and reliability across enterprise codebases.

Writing reliable shell scripts without tests leads to production failures. This skill teaches comprehensive Bats testing patterns to validate shell scripts with unit tests, fixtures, and CI/CD integration.

Write Bash scripts that fail safely and are easier to debug. This skill provides defensive patterns for errors, inputs, and cleanup.

Trading backtests often hide bias and overstate performance. This skill provides patterns and checks to design trustworthy backtests that handle look-ahead bias, survivorship bias, and transaction costs properly.

You need clear guidance for secure authentication and authorization choices. This skill provides proven patterns and examples you can adapt quickly for JWT, OAuth2, and session management.

Build high-performance Python applications with async/await patterns. Learn concurrent programming techniques for scalable I/O-bound systems.

Teams lose context when decisions are undocumented or scattered. This skill provides ADR templates, lifecycle guidance, and review checklists to capture decisions consistently.

API design decisions often become inconsistent and hard to maintain. This skill provides clear patterns, templates, and checklists to guide your choices.

Legacy AngularJS code blocks modern features and maintenance. This skill provides a clear, incremental migration path with hybrid patterns and best practices.

Airflow DAGs can fail when structure and retries are not consistent. This skill provides clear patterns for design, sensors, testing, and alerts that improve pipeline reliability.

WooCommerce documentation requires specific markdown formatting standards. This skill ensures your markdown files follow WooCommerce linting rules and style guidelines.

Inconsistent capitalization in UI text creates confusion and reduces accessibility. This skill provides clear rules for sentence case usage in WooCommerce copy, ensuring user-facing text is readable, modern, and accessible across all languages.

WooCommerce developers need to run tests and linting to ensure code quality. This skill provides the exact commands and workflows for PHP unit tests, JavaScript tests, and code style checks in the WooCommerce monorepo.

Ensuring code quality in WooCommerce development can be challenging with multiple coding standards. This skill automates code review by checking against WooCommerce's specific PHP, JavaScript, and UI text guidelines.

Managing Outlook contacts and calendar through a chat interface is tedious and fragmented. This skill lets Claude search contacts, schedule Teams meetings, and log notes in one workflow.

Managing calendar events and scheduling meetings with multiple attendees is time-consuming. This skill integrates Google Calendar with your contact network, enabling Claude to schedule meetings, find free time slots, and manage your calendar through natural language commands.

Professional contacts are scattered across Google, LinkedIn, Microsoft, and your phone. Rarefriend skills unify them into one searchable CRM. Your AI assistant can search, tag, add notes, schedule meetings, and import contacts on your behalf.