LiveOpen-Source SubstrateL5-substrateShipped 2026-04-26

Library OS (standalone)

Open-source book intelligence framework. Bootable Next.js, MIT.

The framework behind the frankx.ai /library surface. Three slash commands (/library-add, /library-deepen, /library-research), a skill (library-os), and a subagent (book-distiller). Cross-AI portable — works in ChatGPT, Claude, Cursor, Codex, Gemini.

Open Repo

Slash commands

/library-add/library-deepen/library-research

Connects to

Library OS (frankx surface)

Where it lives

Repo: library-os
Layer: L5-substrate
Tier: Open-Source Substrate
Status: Live

All systems