Exposes 393 professional skills through 7 MCP tools while keeping context lean. Instead of flooding your prompt with hundreds of skill descriptions, you get browse_shelf() to navigate 18 groups, search_skills() for keyword lookup, and read_skill() to pull full content only when needed. A Rust daemon runs as a singleton serving multiple MCP clients simultaneously, so opening Claude Desktop, Cursor, and Windsurf together still uses one background process. Skills live as markdown files you can author yourself using install_skills(), and hot reload kicks in when you edit the packages directory. Includes 393 built-in skills across engineering, marketing, design, academic research, and more. Reach for this when you want a queryable skill library that doesn't burn tokens on unused definitions.