Lesson 20 — OpenClaw Obsidian Skill: Let AI Auto-Write Notes, Organize Your Vault, and Create Backlinks (2026)
Goal: Install the Obsidian Skill to let OpenClaw operate your Obsidian Vault through natural language via obsidian-cli: read and write notes, create links, organize folders.
What Is the Obsidian Skill?
Obsidian Skill is a popular knowledge management Skill on ClawHub (68k downloads). It bridges OpenClaw with your local Obsidian Vault via obsidian-cli. Once installed, you can have AI complete note tasks that would otherwise require manual work: auto-write daily notes, bulk organize folders, create bidirectional link networks.
Step 1: Install the Dependency CLI Tool
Obsidian Skill depends on obsidian-cli. Install it globally first:
npm install -g obsidian-cliVerify installation:
obsidian-cli --version
# Should output a version number like 1.5.3macOS users encountering a Gatekeeper error, run:
xattr -d com.apple.quarantine $(which obsidian-cli)Step 2: Install the Skill and Configure Your Vault Path
In WebChat or Telegram, send:
/install @steipete/obsidian
After installation, configure your Vault path:
/config obsidian vault_path ~/Documents/MyVault
Or write it to the config via the command line:
pnpm openclaw config set obsidian.vault_path "/Users/yourname/Documents/MyVault"Verify the Skill can access your Vault:
pnpm openclaw skills list
# Confirm obsidian is in the list
# Test connectivity
obsidian-cli --vault ~/Documents/MyVault listStep 3: Read Existing Notes
After installation, query your Vault content using natural language:
Search my Obsidian Vault for all notes mentioning "project management"
Filter by tags:
List all notes with the #todo tag, sorted by last modified time
Read a specific note:
Read the note "2026-01-15 Daily Review" from my Vault
Bulk keyword search:
obsidian-cli --vault ~/Documents/MyVault search "OpenClaw" --tag "tech" --limit 20To set AI up for success, let it do a full Vault directory scan first to understand your existing note structure.
Step 4: Create New Notes (with Frontmatter and Backlinks)
Have AI create a fully structured note:
Create a new note in the "Projects/OpenClaw" folder in Obsidian, title "MCP Integration Plan",
add frontmatter (tags: [tech, MCP], created: 2026-03-30),
write an outline for the note body, and link to the existing "API Design Principles" note in my Vault
Sample generated note format:
---
tags: [tech, MCP]
created: 2026-03-30
status: draft
---
# MCP Integration Plan
## Background
Building on the interface conventions discussed in [[API Design Principles]]...
## Plan Design
- [ ] Determine MCP Server deployment method
- [ ] Configure authentication mechanism
## Related Notes
[[OpenClaw Architecture]] | [[Skill Development Guide]]The key to automatic backlink generation is: tell AI which existing notes you want to link, and it will automatically generate [[]]-format Wiki links.
Step 5: Organize Your Vault (Bulk Rename and Move)
Bulk organize a messy notes folder:
Move all notes in the Vault root directory containing a date (format like 2025-xx-xx) into the "Daily Notes/2025" folder
Bulk rename:
Rename all notes in the "Inbox" folder based on the H1 heading in the first line of their body
Organize tags:
Scan the entire Vault, find notes without frontmatter, and add tags and created fields to each one
Command-line bulk operation:
obsidian-cli --vault ~/Documents/MyVault organize \
--move-pattern "^\d{4}-\d{2}-\d{2}" \
--target "Daily Notes/2025"Step 6: Daily Workflow — Auto-Write Daily Notes
This is one of the most popular use cases. Before finishing work each day, send:
Write today's Obsidian Daily Note (2026-03-30),
including: work completed today, problems encountered, plan for tomorrow,
use the standard Obsidian template format, automatically link to relevant project notes
Or combine with scheduled tasks (see Lesson 06) to auto-trigger at 6 PM every day:
# Add to crontab -e
0 18 * * * pnpm openclaw run "Write today's Obsidian Daily Note, pull today's data from calendar and task system"The complete workflow: AI reads that day's Git commits and calendar events → organizes into notes → writes to Daily Note → auto-links related projects.
Step 7: Combine with Summarize Skill
Chain together the Summarize Skill from Lesson 10 with the Obsidian Skill:
Summarize this article and save it to Obsidian:
https://example.com/interesting-article
Save to the "Reading Notes" folder, use the article title as the filename,
add tags: [reading, tech], append the original link at the end of the body
One command completes the entire flow of "read webpage → extract key points → save as note," achieving automated knowledge management.
FAQ
Can OpenClaw directly read and write Obsidian's Markdown files?
Yes. Obsidian notes are essentially local Markdown files, and obsidian-cli operates directly on the file system without needing the Obsidian App to be open. After OpenClaw reads or writes files via obsidian-cli, you'll automatically see the new content the next time you open Obsidian App. The only prerequisite is that OpenClaw's running machine can access the Vault's directory path (local or network-mounted paths both work).
Does the Obsidian Skill require any Obsidian plugins to be installed?
No Obsidian plugins are needed. The Obsidian Skill operates on the Vault's file system directly via obsidian-cli, completely bypassing Obsidian App's plugin system. This means even if you don't have Obsidian installed (like running OpenClaw on a server), the Skill works normally. If you use plugins like Dataview or Templater, notes created by AI will be processed by these plugins normally the next time you open Obsidian.
Will AI-created notes overwrite my existing content?
Not by default. The Obsidian Skill checks whether a file already exists at the target path before writing — if it does, it asks you to confirm whether to overwrite or append. If you want AI to append to an existing note (like adding to a Daily Note each day), explicitly say "append to" rather than "create." We recommend testing in a non-critical folder first when starting out to get familiar with AI's behavior.
Does it support Obsidian Sync vaults?
Yes. Obsidian Sync just adds cloud sync on top of the local file system — obsidian-cli reads and writes local files without affecting the sync mechanism. After AI writes a note, Obsidian Sync will automatically sync new files to your other devices the next time the App starts. Note: if OpenClaw and Obsidian App are writing to the same file simultaneously, conflicts may occur — we recommend closing Obsidian App when AI is doing bulk operations.