Sx 2.0 launches as a native Mac, Windows, and Linux app that lets non-technical teams share AI skills through existing shared folders like Dropbox, Google Drive, or iCloud—no git or terminal required. The author, from sleuth-io, discovered through 60 discovery interviews that marketing, legal, and ops teams write valuable skills but lack developer tooling. The new vault format v2 stores assets as plain markdown on disk, enabling direct use with AI clients like Claude Code, Cursor, and Copilot via a background sync that translates and installs skills automatically.

Developers retain full CLI access with git vaults and deterministic installs, while collections group related skills for automatic team-wide updates. An extension system adds pluggable features—dashboard widgets, publish-time checks, and health metrics—with 15 built-in extensions including Collection Doctor for skill quality scoring and Review Rota for automated maintenance. Extensions are permission-gated, versioned as sx assets, and manageable via private marketplaces.

Everything is Apache-2.0 licensed on GitHub at github.com/sleuth-io/sx. The author seeks feedback on real-world Dropbox latency issues.