Video Downloader

React Best Practices

davila7

A React and Next.js performance guide with 40+ rules on waterfalls, bundles, rendering and re-renders.

Web Performance Optimization

davila7

Guides developers through measuring and fixing web performance issues such as Core Web Vitals, bundle size, images and caching.

Find Bugs

davila7

Reviews local branch changes for bugs, security vulnerabilities, and code quality issues, reporting findings without making changes.

Browser Automation

davila7

Guides browser automation with Playwright and Puppeteer for testing, scraping, and agentic browser control.

Code Review

davila7

Guides code reviews of pull requests using Sentry engineering practices, covering security, performance, testing and design.

Commit

davila7

Formats Git commit messages using Sentry's conventional-commit conventions, including issue references.

Theme Factory

anthropics

Featured

Offers 10 preset color-and-font themes, plus custom theme generation, for styling slide decks, documents, reports and HTML pages.

Slack Gif Creator

anthropics

Featured

Creates animated GIFs sized and optimized for Slack, with PIL drawing helpers, easing and validation utilities.

Frontend Design

anthropics

Featured

Guidance for distinctive, intentional visual design when building or reshaping a user interface.

Canvas Design

anthropics

Featured

Creates original visual art as PNG or PDF from a written design philosophy, for posters, artworks and other static pieces.

Brand Guidelines

anthropics

Featured

Applies Anthropic's official brand colors and typography to artifacts that should carry the Anthropic look-and-feel.

Frontend Design

anthropics

Featured

Guides an agent through distinctive, intentional visual design for new or redesigned user interfaces.