obsidian-second-brain

A routing-first front door for obsidian-second-brain — an evolution of Karpathy's LLM-Wiki pattern into a vault that rewrites itself. Where the LLM-Wiki appends new pages, this skill REWRITES existing ones: people get updated, claims revised, stale facts replaced, contradictions reconciled automatically, and cross-source patterns synthesized on their own — while you sleep.

Keyword: obsidian second brain · self-rewriting vault · obsidian-save · obsidian-ingest

One codebase, four CLIs (Claude Code · Codex CLI · Gemini CLI · OpenCode), same brain.

When to use this skill