Wiki-Brain

A Claude Code Skill by @tenfoldmarc

Turn Claude Code into a knowledge base that compounds. Every conversation you have from now on feeds a personal wiki you browse in Obsidian. Claude gets smarter about YOUR stuff over time — and answers questions faster by querying a knowledge graph instead of re-reading files every time.

Built on Andrej Karpathy's LLM Wiki pattern and powered by Graphify.

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What It Does

1. Walks you through installing Obsidian + a vault (or uses your existing one)
2. Installs Graphify — the tool that builds a knowledge graph from your notes so Claude can query it
3. Creates your wiki structure — raw/ for sources, wiki/ for Claude-maintained pages, log.md for a timeline
4. Patches your CLAUDE.md with instructions so Claude knows to use the wiki in every session
5. Installs a SessionEnd hook — automatically rebuilds your knowledge graph on a cadence you pick (3 days, 7 days, or manual only)
6. Gives you commands to ingest sources, query the wiki, health-check it, and recall recent activity

Every conversation becomes compound interest. Drop articles, transcripts, papers, screenshots into raw/ — Claude reads them, extracts key info, writes wiki pages, cross-links everything, and keeps it all maintained. You browse the results in Obsidian with graph view.

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Requirements

• A Mac, Linux, or Windows computer
• Claude Code installed and working
• Python 3 (comes pre-installed on most systems)
• Obsidian (free — the skill walks you through installing it if you don't have it)

Don't worry about connecting these manually — the skill walks you through everything on first run.

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Install

Step 1 — Open your terminal

Mac: Press Command + Space, type Terminal, hit Enter. Windows: Press Win + R, type cmd, hit Enter. (If you have Git Bash, use that instead.) Linux: Open your terminal app.

Step 2 — Run this command

Copy-paste this entire line and hit Enter:

git clone https://github.com/tenfoldmarc/wiki-brain-skill ~/.claude/skills/wiki-brain

You'll see some text scroll by. Wait until it finishes (takes a few seconds).

Step 3 — Open Claude Code

In the same terminal window, type:

claude

Hit Enter. Claude Code will open.

Step 4 — Run the skill

Type:

/wiki-brain

Hit Enter. On your first run, the skill will:

• Ask if you already use Obsidian (and walk you through installing it if not)
• Ask how often you want to rebuild your knowledge graph (recommended: every 7 days)
• Ask how often you want to health-check your wiki (recommended: monthly)
• Install Graphify
• Create your wiki folders
• Patch your CLAUDE.md
• Install a SessionEnd hook that keeps the graph fresh

Just follow the prompts. Setup takes about 5 minutes.

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Usage

Ingest a new source

Drop any article, PDF, transcript, or screenshot into your vault's raw/ folder. Then tell Claude:

/wiki-brain ingest raw/my-article.md

Claude reads the source, summarizes the takeaways with you, writes a wiki page (or updates existing ones), cross-links everything, and updates your index. A single source typically touches 3–10 wiki pages.

Query your wiki

/wiki-brain query "what do I know about the LLM Wiki pattern?"

Claude queries the knowledge graph first, reads the relevant wiki pages, and gives you a synthesized answer with links to the pages.

See recent activity

/recall

Shows your last 5 activities (ingests, queries, sessions) and offers to pull any of them fully into context.

Health check

/wiki-brain lint

Claude scans the wiki for contradictions, stale claims, orphan pages, missing concepts, and broken links. Reports everything so you can decide what to fix.

Force a graph rebuild

/wiki-brain rebuild

Rebuilds the Graphify knowledge graph manually. (Normally happens automatically on your chosen cadence.)

Verify install

/wiki-brain doctor

Checks that every part of the install is healthy — config, folders, hook, CLAUDE.md, Graphify. Tells you exactly what to fix if anything's broken.

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How It's Different from Just Talking to Claude

Most Claude Code setups treat every conversation as throwaway. Claude reads your files, answers, and forgets. Next session, it's re-reading everything from scratch.

Wiki-Brain treats the wiki itself as the memory. Every conversation makes it richer. Every question gets answered from accumulated knowledge, not re-derived from raw files. The system gets smarter about your stuff the more you use it.

• Your raw sources stay untouched (in raw/)
• Claude maintains the wiki pages (in wiki/) — cross-linked, summarized, kept current
• Graphify builds a knowledge graph over the wiki so queries are fast and find unexpected connections
• You browse it in Obsidian — graph view, backlinks, full-text search
• Everything is plain markdown — version it in git, back it up, own it forever

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Updating

To get the latest version:

cd ~/.claude/skills/wiki-brain && git pull

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Uninstalling

Wiki-Brain adds three things to your system:

1. A block in your CLAUDE.md (global or project)
2. A SessionEnd hook in ~/.claude/settings.json
3. The folders it creates inside your vault (which you can keep — they're just markdown)

To fully uninstall, remove those three things and delete ~/.claude/skills/wiki-brain/.

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Built By

@tenfoldmarc — Follow for daily AI automation walkthroughs. Real systems, not theory.