01What the Hermes Obsidian Memory Setup Is and How It Works

The Hermes Obsidian memory setup is a method to give Hermes agent a permanent memory. Instead of starting from scratch every time, Hermes reads your notes, goals, and past tasks from an Obsidian vault. This means you never have to re-explain yourself.

Obsidian is a free tool that stores your notes as simple markdown files. Hermes treats these files like a second brain. When you ask Hermes a question, it quickly retrieves the relevant information instead of thinking for minutes.

In the episode, Julian shows that with Obsidian, Hermes answered 'What did I do last month?' in seconds with detail. Without Obsidian, it took over two minutes and gave a poor answer.

02Main Features of the Hermes Obsidian Memory Stack

This system has four main layers that work together:

  • Vault layer: Your notes become memory stored in Obsidian. You can automatically sync notes from tools like Omi, a free open-source project.
  • Bridge layer: Hermes reads the vault directly. You tell it to use Obsidian for context, and it does.
  • Shared brain layer: Every AI agent you use (Hermes, Claude, OpenClaude) reads from the same vault. They all speak with one voice and use the same facts.
  • Loop layer: Hermes writes new notes back to the vault after each task. Every new note makes Hermes smarter automatically. You don't have to write the notes yourself.

03How to Set Up the Hermes Obsidian Memory

  1. Download and install Obsidian for free on your computer. Create a new vault folder.
  2. Populate your vault with notes about your business, goals, clients, and past projects. You can write these manually or use a tool like Omi to auto-export memories.
  3. In Hermes, configure it to point to your Obsidian vault. Julian says you simply tell Hermes: 'Hey, I have my Obsidian set up locally. Please use that for your memory and context in the future.'
  4. Verify the setup by asking Hermes a question about your past activity, like 'What did I do last month?' It should retrieve the answer quickly from the vault.
  5. Optionally, use a mission control dashboard to organize all agents and see the memory in action. Julian recommends building an agent operating system, but this step is not required.

04How to Use the Memory System with Examples

Once the Hermes Obsidian memory setup is done, every task starts with full context. For example, Julian shows a prompt: 'Based on what I've been doing recently, what could I implement to save time?' Hermes pulls a note from February and gives a personalized suggestion. It knows your voice, your business, and your past attempts.

You can also ask Hermes to organize your messy vault. Julian says: 'If you ask Hermes to take all your notes inside Obsidian and improve them and organize them and color code them, it will go off and do that for you.' This keeps your vault clean without manual work. Another use is cross-agent handoff: Hermes finishes a job, drops a note in the vault, and Claude reads it the next morning.

The handoff is automatic.

05Results and Comparisons from the Episode

Julian compares two approaches. The old way: paste context every time, waste 30 seconds per chat, get generic answers, and miss relevant notes from other tools. The new way: point Hermes at Obsidian once, get answers based on real notes from months ago, use fewer tokens, and save significant time.

In a live demo, with Obsidian, Hermes answered 'What did I do last month?' in detail in a few seconds. Without it, Hermes took over two and a half minutes and gave a poor answer. Julian emphasizes that every note you write becomes part of your edge, and the system gets sharper daily because Hermes writes its own notes back to the vault.

06Tips, Limits, and Mistakes to Avoid

Tip: Start today. The sooner you set up the vault, the more context you capture. Julian warns: 'The longer you wait, the more context you're missing out on.' Limit: This system works best for important, personalized work like email, client projects, content, and strategy.

For quick one-off questions, a normal chat is fine.

Mistakes to avoid: Do not let your vault become messy. If it is, have Hermes organize it for you. Also, be sure to point all your agents to the same vault.

A shared memory does not confuse them; it aligns them. Finally, do not keep copying and pasting context. Julian says most people will watch this and keep doing it the old way.

You want to save time and energy by using the memory system.

07Who This Memory Setup Is For and Why It Matters

This system is for anyone who uses AI agents for serious work. If you run a business, manage clients, write content, or need consistent brand voice, the Hermes Obsidian memory setup is a game changer. It is free to set up because both Hermes and Obsidian are free and open source.

Why it matters: Most people waste time re-explaining themselves to AI. With this system, your AI already knows everything about you. It never forgets, and it gets smarter every day.

Julian says: 'The people who give their AI a memory now, while it is free and brand new, are going to be miles ahead when everyone else is catching up.' One vault, one shared brain, and every agent on the same page.