Individual skill

second-brain

When you want to capture into, compile, query, lint, or connect your personal Second Brain. Wraps the Karpathy LLM Wiki schema (Obsidian or any markdown vault) — raw/ (unprocessed sources), wiki/ (AI-compiled interlinked topic pages), outputs/ (generated artifacts). Vault defaults to ${SECOND_BRAIN_VAULT:-$HOME/Documents/SecondBrain}/. Six modes — capture (drop something into raw/), compile (process unprocessed raw files into wiki pages, update INDEX.md), query (answer a question from the wiki, save to outputs/), lint (orphans / contradictions / stale / unprocessed raw / topic gaps), connect (suggest new wikilinks between pages), search (quick lookup). Triggers on "/second-brain," "/sb," "capture this," "save this to my brain," "compile the wiki," "process raw notes," "query my wiki," "ask my brain," "lint the wiki," "find connections," "search my notes." Complements deep-research (external corpus) — this is the internal corpus. Team knowledge goes to company-brain, not here.

skills/second-brain/SKILL.md

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Nov 5, 2026
License
MIT

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# /second-brain — Karpathy LLM Wiki workflow

Wraps an existing Second Brain in Obsidian (or any markdown-based vault). The wiki vault's schema doc (`CLAUDE.md` or `AGENTS.md`) is the authoritative schema — the skill orchestrates the operations the user has been doing manually.

## Mental model

Three layers, each with a clear role:

```
raw/      →  wiki/         →  outputs/
sources      compiled         generated
                              artifacts
```