At a glance there are a few differences: - LNAI additionally supports permissions - The way rules for sub-directories are defined is different. Ruler defines rules for sub-directories in the sub-directories themselves under ‘.ruler/‘. LNAI defines rules for sub-directories by using front matter ‘paths’ property and storing all rules under ‘.ai/rules’ - ruler supports more tools (I will continue maintaining and improving lnai to also support more tools / configs) - lnai supports per tool overrides in ‘.ai/.{codex/claude/etc.}’ for more granular control while keeping a single source of truth - ruler is a more mature package