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Updated 6mo ago

by NicholasSpisak

second-brain

LLM-maintained personal knowledge base for Obsidian. Based on Andrej Karpathy's LLM Wiki pattern.

View on GitHub (opens in a new tab)

740 GitHub stars (740)

+15 in 20 days

Stars gained per day · daily snapshots since Sep 26
Stars gained per day, Sep 26 to Oct 16: +15 in total; the busiest day was Sep 29 with +4 stars.Sep 27: 0 starsSep 28: +2 starsSep 29: +4 starsSep 30: +1 starsOct 1: 0 starsOct 2: +1 starsOct 3: +1 starsOct 4: 0 starsOct 5: 0 starsOct 6: +1 starsOct 7: 0 starsOct 8: +1 starsOct 9: +1 starsOct 10: 0 starsOct 11: 0 starsOct 12: +1 starsOct 13: +1 starsOct 14: 0 starsOct 15: +1 starsOct 16: 0 stars
Stars gained between daily snapshots
PeriodNew stars
Sep 270
Sep 28+2
Sep 29+4
Sep 30+1
Oct 10
Oct 2+1
Oct 3+1
Oct 40
Oct 50
Oct 6+1
Oct 70
Oct 8+1
Oct 9+1
Oct 100
Oct 110
Oct 12+1
Oct 13+1
Oct 140
Oct 15+1
Oct 160
  • 4 skills (4 skills found in its SKILL.md files)
  • 109 forks (109 forks)
  • 6mo ago last update (Last updated 6mo ago)

Install

Skills CLI

npx skills add NicholasSpisak/second-brain

Asks which skills and agents to install. Just one: npx skills add NicholasSpisak/second-brain --skill second-brain-ingest — add -g for every project.

Claude Code

git clone https://github.com/NicholasSpisak/second-braincp -r "second-brain/skills/second-brain-ingest" ~/.claude/skills/

Copies the second-brain-ingest skill into ~/.claude/skills/ for every project (use .claude/skills/ for one project). Repeat for the other skills listed below.

Plugin

/plugin marketplace add NicholasSpisak/second-brain

Run inside Claude Code if the repository ships a plugin marketplace, then pick plugins from /plugin.

Skills can run code on your machine — read the SKILL.md first.

What it does

In the author's own words, from each skill's SKILL.md.

  • second-brain-ingest

    Process raw source documents into wiki pages. Use when the user adds files to raw/ and wants them ingested, says "process this source", "ingest this article", "I added something to raw/", or wants to incorporate new material into their knowledge base.

    skills/second-brain-ingest/SKILL.md on GitHub (opens in a new tab)

  • second-brain-lint

    Health-check the wiki for contradictions, orphan pages, stale claims, and missing cross-references. Use when the user says "audit", "health check", "lint", "find problems", or wants to improve wiki quality.

    skills/second-brain-lint/SKILL.md on GitHub (opens in a new tab)

  • second-brain-query

    Answer questions against the knowledge base wiki. Use when the user asks a question about their collected knowledge, wants to explore connections between topics, says "what do I know about X", or wants to search their wiki.

    skills/second-brain-query/SKILL.md on GitHub (opens in a new tab)

  • second-brain

    Set up a new Obsidian knowledge base with the LLM Wiki pattern. Use when the user wants to create a second brain, initialize a vault, set up a personal knowledge base, or says "onboard". Guides through an interactive wizard to configure vault name, location, domain, agent support, and tooling.

    skills/second-brain/SKILL.md on GitHub (opens in a new tab)

Review before you install

A skill is a set of instructions and scripts your agent will follow, and it can run code on your machine. Read the SKILL.md and any scripts first — this listing is not a security review.