Synthetic Screen Recording

Web Design Guidelines

calesthio

Reviews UI code against Web Interface Guidelines fetched from a remote source and reports findings as file:line entries.

Vercel React Best Practices

calesthio

Vercel's React and Next.js performance guidelines, organized as 65 rules for writing, reviewing, and refactoring code.

Visual Style

calesthio

Creates, extracts and applies portable visual design systems stored as visual-style.md files.

Video Understand

calesthio

Extracts video frames with ffmpeg and transcribes audio locally with Whisper, returning JSON.

Video Edit

calesthio

Edits video files locally with ffmpeg commands for trimming, joining, resizing, audio and format conversion.

Video Download

calesthio

Downloads video, audio, subtitles and metadata from YouTube and other sites using yt-dlp commands.

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.