Persona configuration and management for chat agents with baseline personas and custom persona support

A library for obtaining browser versions with their maximum supported Baseline feature set and Widely Available status.

Avatar style for DiceBear

Curated list of Web platform features

Enforce JavaScript Baseline (widely/newly/year) browser compatibility with a single ESLint rule. Prevent runtime errors by catching unsupported JavaScript features during development.

A browserslist config based on Web Platform Baseline.

Save a baseline of TypeScript errors and compare new errors against it. Useful for type-safe feature development in TypeScript projects that have a lot of errors. This tool will filter out errors that are already in the baseline and only show new errors.

Workspace context loader for AGENTS.md/CLAUDE.md instruction files

A markdown parser built for speed

Component to easily embed the Baseline status of a web feature on your Astro site

8 AI design personas — v2.5.2 motion/UX/visual library catalog and Kavi install detection, v2.5.1 anti-AI-slop craftsmanship, v2.5.0 signed rate-based persona trust scoring, v2.2 project-scoped knowledge bank, v2.0 chunked execution with frontier planner

*Note*: This package is not meant to be used directly by the end user. It is a dependency for the Studio Experiences packages. Changes to this package are not guaranteed to follow semantic versioning and may break without notice if used directly.

PostCSS plugin to add cascade layers to CSS

Use two values display syntax for inner and outer display types.

Command-line tool for capturing, comparing, and managing component fixture screenshots.

Use lab() and lch() color functions in CSS

Jest matcher for image comparisons. Most commonly used for visual regression testing.

Use the unset keyword in CSS.

Use unquoted format on @font-face CSS definitions.

Display resolution-dependent images using the image-set() function in CSS