Second-brain repo: guide, agent skills and a Jev engineering track
The author of an 8-million-view second-brain article open-sourced his full setup: a 65-page guide, 18 agent skills, 72 slash commands, 6 subagents, and learning tracks including Jev engineering.
the guy behind an 8-million-view second brain article put his whole setup in one public repo, and it's a f*cking goldmine repo, guide, tools and learning path, all free under MIT • the guide > 10 sections and 65 pages, from the concept to troubleshooting > 5 tracks on top: 44 more pages, 15 of them build guides with working code • the .claude/ folder > 18 agent skills, one for each workflow > 72 slash commands like /ingest-pdf, /ingest-youtube, /ingest-voice, /backfill > 6 subagents: curator, linker, researcher, reviewer, ingestor, graph-analyst > 4 of the 6 are read-only, so your vault never gets rewritten behind your back • the scripts > plain Python with zero dependencies > graph export, link checker, vault stats, chat converter, site builder • the starter vault > a CLAUDE. md with page contracts and linking rules > raw/ stays untouched once a file lands, wiki/ belongs to the agent > a log file gets one line per run, so every change can be traced • 87 vetted resources > 28 tools, 26 Obsidian plugins, 15 repos, 12 skills, plus papers the 5 tracks: knowledge graphs, Jev engineering, agent harnesses, loop engineering, eval engineering new to this? start with the guide. already running agents? jump to a track consultants bill four figures to build a research system like this one ↳ https://github.com/undefined-ui/second-brain-os
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