Build With AI

# 156 Build Karpathy's Second Brain With Obsidian + Claude Code

Apr 7, 2026
Guest
Nick Spisak
Nick Spisak, an AI practitioner who built Claude Code skills, demos a one-click Obsidian second brain setup. He walks through the setup wizard, ingest/query/lint tooling, and graph-based wiki organization. They cover automating ingestion, syncing across devices, managing vaults for personal vs business, and using lint to prune and maintain your knowledge base.
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INSIGHT

Second Brain Concept Implemented As A Claude Skill

  • The second brain organizes unstructured personal and business data into a searchable LLM knowledge base.
  • Nick implemented Andrej Karpathy's idea as a Claude skill that scaffolds an Obsidian vault, ingest, query, and lint commands.
ADVICE

Use The One‑Click Skill To Bootstrap Your Vault

  • Install Nick's one‑click skill to scaffold a vault, run a guided wizard, ingest sources, query the wiki, and lint for stale content.
  • The skill is agent‑agnostic and works with Claude Code, Codex, Gemini CLI and others for plug‑and‑play setup.
ADVICE

Run The Wizard To Create A Ready Vault

  • Run the setup wizard to name the vault, choose local storage path, and optionally generate agent config files like claude.md or agent.md.
  • The wizard writes the vault scaffold (raw, wiki, outputs) so you don't manually create directories.
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