Software Engineering

Source details, install context, and public review data are available on the full page.

This skill helps you initialize and configure Airflow projects using the Astro CLI.

UnJS (Unified JavaScript) is an ecosystem of high-quality, single-purpose JavaScript libraries and tools designed to work together and independently across any environment. These skills cover the core packages and their practical usage patterns for building universal JavaScript applications.

A practical guide to choosing, pairing, and implementing typefaces for the web. Typography serves communication — the best typography is invisible, immersing readers in content rather than calling attention to itself.

Source details, install context, and public review data are available on the full page.

Modern Shopify app template with React Router

Campaign performance analysis with engagement metrics, ROI calculations, and platform benchmarks.

Source details, install context, and public review data are available on the full page.

Source details, install context, and public review data are available on the full page.

Create visual storyboards with AI image generation via inference.sh CLI.

Infographics convert data, information, and knowledge into perceptible visual language. They combine visual design with data visualization, compressing complex information with intuitive symbols to help audiences quickly understand and remember key points.

IMPORTANT: Always check the environment variables or .env file for LANGSMITH_PROJECT before querying or interacting with LangSmith. This tells you which project contains the relevant traces and data. If the LangSmith project is not available, use your best judgement to identify the right one.

Track progress across work sessions using SESSION.md with git checkpoints and concrete next actions.

Create data-driven content briefs via inference.sh CLI.

Source details, install context, and public review data are available on the full page.

Create professional marketing videos via inference.sh CLI.

Turn a user request into a single, actionable plan with atomic steps.

Type-safe database applications with PostgreSQL 18 and Drizzle ORM.

Compatibility note (v1.8.0): autonomous-loops is retained for one release. The canonical skill name is now continuous-agent-loop . New loop guidance should be authored there, while this skill remains available to avoid breaking existing workflows.

For provider response parsing tests, we aim at storing test fixtures with the true responses from the providers (unless they are too large in which case some cutting that does not change semantics is advised).

Design production-quality UIs in Pencil and generate clean, maintainable code from them. This skill enforces best practices for design system reuse, variable usage, layout correctness, visual verification, and design-to-code workflows.

A comprehensive skill for professional PostgreSQL database engineering, covering everything from query optimization and indexing strategies to high availability, replication, and production database management. This skill enables you to design, optimize, and maintain high-performance PostgreSQL databases at scale.

Comprehensive JWT (JSON Web Token) authentication and authorization patterns for Spring Boot 3.5.x applications using Spring Security 6.x and the JJWT library. This skill provides production-ready implementations for stateless authentication, role-based access control, and integration with modern authentication...

The web renderer is in packages/web-renderer and the test suite is in packages/web-renderer/src/test .