/ Directory / Playground / Claude × Obsidian
← All servers ↗ GitHub
● Community AgriciDaniel ⚡ Instant

Claude × Obsidian

by AgriciDaniel · AgriciDaniel/claude-obsidian

Turn your Obsidian vault into a self-maintaining wiki — Claude saves what matters, links it, and grows the graph instead of dropping notes into a void.

Implements Andrej Karpathy's 'LLM Wiki' pattern as a Claude Code skill. Three commands: /wiki to ask a question against your knowledge base (with auto-link to existing notes), /save to capture a conversation snippet as a structured note with cross-links, and /autoresearch to dig into a topic and add a fully sourced wiki entry. Designed to compound, not just accumulate.

▶ Watch demo 📦 Install 💡 Use Cases

Why use it

Key features

Live Demo

What it looks like in practice

ready

Install

Author repository · Claude Skills documentation

Use Cases

Real-world ways to use Claude × Obsidian

How to capture a long Claude conversation as a proper wiki entry

👤 Knowledge workers using Obsidian ⏱ ~5 min beginner

When to use: You had a great Claude conversation that you'll need again — don't let it die in chat history.

Flow
  1. Save
    /save the conversation we just had about React Server Components patterns. Title: 'RSC patterns'.✓ Copied
    → Note created at /Wiki/RSC-patterns.md with frontmatter + backlinks
  2. Verify links
    Show me what existing notes the new entry links back to.✓ Copied
    → Linked notes with rationale

Outcome: Wiki gains structured entry instead of chat going to dev/null.

Pitfalls
  • /save makes overly-long notes — Skill compresses to ~600 words by default; pass --full only when needed
Combine with: obsidian-mcp-tools

Ask the wiki before asking the model

👤 Long-time vault holders ⏱ ~5 min beginner

When to use: You know you wrote about this; check the vault first.

Flow
  1. Ask the wiki
    /wiki What did I conclude about RSC error boundaries last quarter?✓ Copied
    → Quote + link to the source note
  2. Refine
    Now extend that conclusion with anything you can verify online today, and update the note.✓ Copied
    → Note updated with new dated section

Outcome: Vault gets denser instead of redundant.

Pitfalls
  • Wiki has stale info that doesn't get updated — Skill flags last-modified > 6 months as stale; review on retrieval

Run /autoresearch to add a sourced wiki entry on a topic

👤 Researchers / students ⏱ ~30 min intermediate

When to use: Topic is new to you; you want a notes-style summary you can later expand.

Flow
  1. Autoresearch
    /autoresearch 'Mixture of Experts in 2026 — recent open-source results'.✓ Copied
    → Note created with sections, citations, and links to vault
  2. Refine
    Trim to focus on practical training implications.✓ Copied
    → Refined note

Outcome: Vault entry that's a starting point for future deep work.

Pitfalls
  • Citations may not be fully verified — Pair with last30days-skill or arxiv-mcp-server for grounded sources
Combine with: last30days-skill

Combinations

Pair with other MCPs for X10 leverage

claude-obsidian-skill + obsidian-mcp-tools

Use the MCP for vault access; skill for the workflow

Use claude-obsidian /save with obsidian-mcp-tools as backend.✓ Copied
claude-obsidian-skill + last30days-skill

Make /autoresearch's sources current and grounded

When /autoresearch runs, fetch sources via last30days first.✓ Copied

Tools

What this MCP exposes

ToolInputsWhen to callCost
/wiki query Read the vault 0
/save title?, scope? After a useful chat 0
/autoresearch topic, depth? Add new sourced entry 0

Cost & Limits

What this costs to run

API quota
N/A
Tokens per call
Light for /wiki; heavier for /autoresearch (5–20k)
Monetary
Free
Tip
Use /wiki before /autoresearch — saves tokens by not redoing prior work

Security

Permissions, secrets, blast radius

Minimum scopes: filesystem-read filesystem-write
Credential storage: None
Data egress: Local except when /autoresearch fetches sources

Troubleshooting

Common errors and fixes

/save creates files outside vault

Set OBSIDIAN_VAULT env var or pass --vault explicitly

/wiki returns nothing

Check that vault has at least 1 note matching; or rebuild the skill's index

Backlinks don't resolve

Wiki uses [[Title]] format; ensure file titles match exactly

Alternatives

Claude × Obsidian vs others

AlternativeWhen to use it insteadTradeoff
obsidian-mcp-tools (MCP)You want the building blocks rather than a workflowMCP is lower-level; this skill encodes opinions
AgriciDaniel/wp-mcp-ultimate (different domain)You're on WordPress for knowledgeDifferent platform; same author

More

Resources

📖 Read the official README on GitHub

🐙 Browse open issues

🔍 Browse all 400+ MCP servers and Skills

Continue exploring

Related tools and workflows

Choose another guide for your workflow, or explore a collection.

Browse all topic collections → · See 29 new official additions →