Show HN: Sx – an open-source package manager for AI skills, MCPs, and commands (github.com)

The newly announced open-source package manager, Sx, aims to streamline the sharing and management of AI skills and configurations across development teams. Traditional methods of sharing AI developments have led to issues like duplication of resources and difficulty in managing updates. Sx addresses these challenges by allowing teams to share expertise in a centralized manner, enabling instant onboarding for new developers and offering scoped installations to avoid unnecessary context bloat. It supports a wide array of AI clients, including Claude Code and GitHub Copilot, ensuring that integration is seamless across various platforms. Sx boasts a comprehensive set of features, such as the ability to create custom prompts, commands, and automation triggers, along with a user-friendly installation process via Homebrew or shell scripts. This package manager utilizes a manifest-and-lock file structure, similar to npm, to maintain clear versioning and manage assets effectively. Users can set installation scopes for their assets—ranging from organizational to individual levels—making it highly adaptable to different team configurations. The inclusion of usage analytics and audit capabilities further extends its utility, positioning Sx as a valuable tool for enhancing productivity in AI development environments.