A viral post claimed Anthropic’s internal “Obsidian Brain” leaked online.

There is no official proof confirming that story.

No verified internal vault.

No official statement from Anthropic.

No trusted report confirming the details.

But the reason the post went viral is because the idea behind it feels real:

The best AI users are no longer just asking random prompts.

They are building private knowledge systems.

Systems that store their prompts, research, decisions, workflows, customer insights, meeting notes, and internal docs in one connected place.

Then they use AI on top of that system.

That is the real opportunity.

The news might be fake.

But the workflow is extremely real.

The X post that allegedly started everything: https://x.com/0xDeliriumm/status/2073378450459570257

An Obsidian Brain is a connected knowledge system built inside Obsidian.

Obsidian is a note-taking app where your notes can connect to each other through links and backlinks.

Instead of storing information in isolated folders, Obsidian lets you build a map of how your ideas, projects, research, and decisions relate to each other.

Think of it like this:

Google Docs stores documents.

Notion stores pages.

Slack stores conversations.

Your browser stores tabs.

But Obsidian can become the place where all those pieces connect.

Every note becomes a node.

Every link becomes a connection.

Every decision, prompt, idea, and research note becomes part of a larger map.

That is why people call it a second brain.

For a company, creator, founder, researcher, or AI builder, it becomes something even more useful:

A private operating system for your knowledge.

Official Obsidian website:
https://obsidian.md

Obsidian Help Center:
https://obsidian.md/help

Most people lose value because their knowledge is scattered.

They have prompts in one chat.

Research in another tab.

Meeting notes in Google Docs.

Client feedback in Slack.

Product ideas in Notion.

Strategy in old screenshots.

Decisions buried in email.

Workflows living only in someone’s head.

This creates a huge problem:

Your team keeps rethinking the same things.

Your AI has no memory of your best context.

Your ideas do not compound.

Your research gets forgotten.

Your prompts get reused badly or not reused at all.

Your company keeps operating from scattered fragments.

An Obsidian Brain fixes that by creating one connected place where your knowledge becomes searchable, reusable, and AI-ready.

Your Obsidian Brain should organize the information your work actually runs on.

Start with these 8 categories:

These are the core organs of the system.

Each one captures a different type of company intelligence.

Together, they become your private knowledge graph.

First, download Obsidian:

https://obsidian.md

Then create a new vault.

A vault is the main folder where all your notes live.

Name it something simple:

Company Brain
AI Operating System
Founder Brain
Knowledge OS
Research Brain
Obsidian Brain

Keep the name simple.

The goal is not to create the perfect system.

The goal is to create a system you actually use.

Inside your vault, create these folders:

00 Inbox
01 Prompts
02 Research
03 Meeting Notes
04 Customer Insights
05 Product Ideas
06 Internal Docs
07 Workflows
08 Decisions
09 People
10 Projects
11 Templates
12 Archive

This is your basic operating system.

Everything you save should eventually belong to one of these folders.

This is where everything goes first.

Random ideas.

Quick notes.

Links.

Screenshots.

Messy thoughts.

Voice note summaries.

Stuff you do not want to organize yet.

Rule:

Never think too much when capturing.

Just throw it into Inbox.

Organize later.

This is your prompt library.

Store every prompt that works.

Not just generic prompts.

Store prompts with context.

What it does.

When to use it.

Which model it works best with.

What output it creates.

Examples of results.

How to improve it.

Example notes:

Prompt - Turn Meeting Notes Into Action Items
Prompt - Create Instagram Carousel Copy
Prompt - Analyze Customer Feedback
Prompt - Generate Product Landing Page
Prompt - Rewrite Client Email
Prompt - Turn Research Into Strategy

Your prompt folder becomes your internal AI command center.

This is where you save useful information from the outside world.

Articles.
Reports.
Trends.
Competitor analysis.
Tweets.
Papers.
Videos.
Market insights.
Tool comparisons.
Case studies.
Use Research for anything that helps you think better.

You can also use Obsidian Web Clipper to save useful web pages directly into your vault.

Obsidian Web Clipper:
https://obsidian.md/clipper

This folder stores calls, team syncs, client meetings, brainstorms, and strategy sessions.

Every meeting note should answer:

What was discussed?

What was decided?

What are the action items?

Who owns each action?

What should be linked to this meeting?

This is where your company stops forgetting what happened.

This is one of the most valuable folders.

Store everything customers say.

Complaints.

Objections.

Feature requests.

Testimonials.

Pain points.

Sales call notes.

Support questions.

Survey answers.

Audience comments.

Why?

Because customer language is gold.

It gives you better product ideas.

Better marketing angles.

Better copywriting.

Better positioning.

Better sales arguments.

Better content.

Most companies lose this information.

Your Obsidian Brain compounds it.

This folder is for ideas you may build later.

Features.

Tools.

Content products.

Lead magnets.

New offers.

App ideas.

Community ideas.

Automation ideas.

Campaign ideas.

Each product idea should connect to customer insights, research, prompts, decisions, projects, and workflows.

This way, ideas do not sit alone.

They become connected to evidence.

This is your internal company knowledge.

Brand voice.

SOPs.

Positioning.

Offer details.

Team rules.

Client process.

Pricing.

Content standards.

Onboarding docs.

Tool stack.

Distribution process.

Anything your team needs to understand how the company works goes here.

This is where you document repeatable processes.

Examples:

How to create a carousel.

How to publish a Beehiiv guide.

How to set up ManyChat automation.

How to onboard a client.

How to create a newsletter.

How to research a tool.

How to make a reel.

How to deliver a campaign.

A workflow should be so clear that someone else could follow it without asking you 10 questions.

This is where your company stops depending on memory.

This is the most underrated folder.

Every important decision should have a note.

Why?

Because companies forget why they chose something.

Then months later, they debate the same thing again.

A decision note saves:

What was decided.

Why it was decided.

What alternatives were considered.

Who was involved.

What the expected outcome was.

When to review it.

This creates strategic memory.

Use this folder for important people connected to your work.

Clients.

Team members.

Partners.

Creators.

Investors.

Mentors.

Leads.

Customers.

Each person note can include:

Who they are.

What they care about.

Past conversations.

Projects connected to them.

Follow-ups.

Preferences.

Relevant links.

This is especially useful for sales, partnerships, and client work.

This folder connects everything to active work.

A project note should link to relevant prompts, research, meeting notes, customer insights, internal docs, workflows, decisions, and people.

Example notes:

Project - Obsidian Brain Guide
Project - Claude Carousel Campaign
Project - New AI Community Launch
Project - Client Reel for Motion
Project - Beehiiv Newsletter System

Your Projects folder becomes the dashboard of what is moving right now.

This folder stores your reusable note templates.

Templates save time and keep your brain clean.

Instead of creating every note from zero, you use a structure that already works.

You will create templates for prompts, research, meetings, customer insights, product ideas, workflows, and decisions.

This is where old notes go.

Do not delete aggressively.

Archive.

Old knowledge can become useful again later.

Use these templates inside your Obsidian Brain.

You can paste them into your Templates folder and reuse them anytime.

This prompt helps you turn a specific type of input into a useful output.

Example:
This prompt helps turn messy meeting notes into clear action items, decisions, and next steps.

Use this prompt when you want to:

Paste your full prompt here.

Example:

“Analyze the notes below and turn them into a clean summary. Extract the main ideas, decisions, action items, owners, deadlines, risks, and next steps. Make the output easy to scan and ready to paste into Obsidian.”

This prompt works best when you provide:

The output should include:

Claude, ChatGPT, or any long-context model.

The meeting notes were turned into a clean summary with 5 action items, 2 decisions, and 3 suggested follow-up notes.

You can improve this prompt by adding your company tone, preferred formatting, and examples of past outputs you liked.

Related notes to connect:

Prompt Library
Meeting Notes
Workflow System
Project Dashboard

Paste the original link, video, article, tweet, report, or document here.

Example:
Source: https://obsidian.md

Write a short explanation of what this research is about.

Example:
This research explains how Obsidian can be used to connect notes, ideas, projects, and documents into a personal or company knowledge graph.

The most important insights from this research are:

This matters because scattered knowledge creates friction. When research is organized and connected, it becomes easier to reuse for content, strategy, product ideas, and decision-making.

This research could be used to:

Related notes to connect:

Product Ideas
Customer Insights
AI Workflows
Internal Docs

Explain why this meeting happened.

Example:
This meeting was about planning the Obsidian Brain guide, deciding the carousel angle, and defining the CTA for the Instagram post.

People involved:

Rodrigo
Team member
Client
Partner

The main topics discussed were:

The decisions from this meeting were:

Next actions:

Questions still open:

Related notes to connect:

Obsidian Brain Guide
Carousel Copy
ManyChat Setup
Content Strategy

Where did this insight come from?

Example:
Instagram comment, DM, sales call, newsletter reply, support message, survey, client call, or community post.

Paste the exact customer language.

Example:
“I want to use AI more seriously, but all my prompts and ideas are everywhere.”

The customer is struggling because their knowledge is scattered. They have prompts, notes, ideas, and research in different places, which makes it hard to reuse anything.

They want one system where they can store, organize, and reuse everything.

They may think Obsidian is too complicated or that setting up a second brain will take too much time.

This creates an opportunity to offer a simple guide, template, or workflow that helps them build an Obsidian Brain from zero.

Related notes to connect:

Product Idea - Obsidian Brain Template
Prompt Library
Research - Knowledge Systems
Workflow - Weekly Review

A simple Obsidian setup that helps founders, creators, and teams organize their knowledge into an AI-ready system.

People are using AI every day, but their context is scattered across chats, notes, docs, screenshots, and tools. This makes their AI outputs weaker and harder to reuse.

This is for:

AI tools are getting more powerful, but most users still have messy context. The next advantage is not just better prompts. It is better knowledge systems.

Useful evidence:

The simplest version could include:

Possible risks:

Create the guide, publish the carousel, and use “Comment OB” as the CTA.

Related notes to connect:

Customer Insights
Obsidian Research
Prompt Library
Workflow System

The goal of this workflow is to turn messy information into a clean, connected Obsidian note.

Use this workflow when you capture a new idea, meeting note, research link, customer comment, prompt, or decision.

You need:

Step 1: Capture the information in the Inbox.

Step 2: Decide what type of note it is.

Step 3: Move it to the right folder.

Step 4: Add a short summary.

Step 5: Add relevant links to other notes.

Step 6: Add useful tags if needed.

Step 7: Ask AI to improve, summarize, or extract next actions.

Before finishing the note, check:

Useful tools:

Obsidian
Obsidian Web Clipper
Claude
ChatGPT
Google Docs
Slack
Notion

The final output should be a clean, useful, connected note that can be reused for strategy, content, workflows, decisions, or AI prompts.

Related notes to connect:

Inbox System
Weekly Review
Prompt Library
Project Dashboard

Write the decision clearly.

Example:
We decided to frame the Anthropic Obsidian Brain story as an unconfirmed viral claim, then pivot into the real value of building a company knowledge system.

Write the date of the decision.

Example:
2026-07-06

Explain why this decision was needed.

Example:
The viral claim is useful for attention, but it has not been officially confirmed. We need to avoid presenting it as fact while still using the conversation to teach something valuable.

Option 1: Present the claim as real.
Risk: Could spread misinformation.

Option 2: Ignore the claim completely.
Risk: Less viral tension.

Option 3: Mention the claim as unverified and pivot into the workflow.
Best option: This creates curiosity while staying credible.

We chose option 3 because it balances attention and trust. It uses the viral moment without depending on it being true.

The audience understands that the leak may be fake, but the idea of building an Obsidian Brain is useful and worth learning.

Possible risks:

Review after the post is published and check comments, saves, shares, and DM conversion.

Related notes to connect:

Carousel Copy
Obsidian Brain Guide
Content Strategy
Fake News Framing

Folders organize notes.

Links create intelligence.

A basic folder system is linear.

A linked note system is alive.

In Obsidian, you can link one note to another by using double brackets.

Example:

[[Customer Insight - People Hate Complicated AI Tools]]

This creates a connection between notes.

When enough notes connect, your vault becomes a map of how your company thinks.

Example:

A customer says:

“I don’t know how to use AI tools for my business.”

That becomes a Customer Insight.

You link it to:

[[Product Idea - AI Tool Starter Kit]]
[[Research - AI Adoption Barriers]]
[[Prompt - Explain Tools Like I Am 5]]
[[Workflow - Create Beginner Guide]]

Now one customer quote is connected to product, research, prompts, and workflow.

That is how knowledge compounds.

Tags are useful, but do not overuse them.

Use tags for status, not everything.

Good tags:

#todo
#review
#evergreen
#client
#content
#strategy
#high-value
#needs-update

Bad tags:

#idea
#note
#thing
#random
#important

Almost everything is important.

That tag becomes useless.

Use tags to create action.

Use links to create meaning.

Do this every day for 10 minutes.

Anything valuable goes into 00 Inbox.

Do not organize while capturing.

Just save it.

Move each note into the right folder.

Prompt, Research, Meeting, Customer Insight, Product Idea, Internal Doc, Workflow, or Decision.

Ask:

What does this connect to?

Then add 2 to 5 links.

At the top of the note, add a simple summary.

Example:

This note explains…

Use ChatGPT or Claude to turn raw notes into something useful.

Examples:

Summarize this meeting.

Extract decisions.

Find product ideas.

Turn this into a workflow.

Create a content angle.

Find patterns in customer feedback.

A knowledge brain is useless if it only stores.

Every day, use it to produce something:

A decision.

A workflow.

A post.

A guide.

A product idea.

A client update.

A strategy note.

A better prompt.

This is where the system becomes powerful.

You do not need to connect Obsidian directly to AI on day one.

Start simple.

Copy one note or a group of notes into Claude or ChatGPT.

Then ask the AI to transform it.

Use this prompt:

I’m building a company knowledge brain in Obsidian.

Here are notes from my vault.

Your job is to extract:

Here are the notes:

[paste notes]

This works because your notes already have structure.

AI performs better when your context is clean.

Your Obsidian Brain gives it clean context.

Use these prompts with Claude, ChatGPT, or any other AI assistant.

Take these raw notes and turn them into a clean Obsidian note.

Use this structure:

Also suggest which folder this note should go into.

Raw notes:

[paste notes]

Analyze these customer comments and extract the most useful insights.

Group them into:

Then create 5 Obsidian note titles I should create from this.

Customer comments:

[paste comments]

Turn this messy process into a clear internal workflow.

Use this format:

Process:

[paste process]

I’m building an Obsidian knowledge system.

Read this note and suggest:

Note:

[paste note]

Turn this research note into strategic recommendations.

Give me:

Research:

[paste research]

You are helping me review my Obsidian company brain.

Here are the notes I created this week.

Find:

Notes:

[paste weekly notes]

Turn these Obsidian notes into content ideas for Instagram, newsletter, and LinkedIn.

For each idea, give:

Notes:

[paste notes]

Using these project notes, create a clean project dashboard.

Include:

Project notes:

[paste notes]

Once a week, clean the brain.

Every Friday or Sunday, do a 30-minute review.

Open your vault and ask:

What did I capture this week?

Which notes are still in Inbox?

Which notes need links?

Which decisions were made?

Which workflows should be created?

Which customer insights keep repeating?

Which prompts actually worked?

Which projects moved forward?

What should be archived?

Then create one note:

Weekly Review - YYYY-MM-DD

Use this structure:

Once a week, clean your Obsidian Brain.

The goal is not to make everything perfect.

The goal is to make sure your best knowledge does not stay buried in the Inbox.

Open your vault and review what you captured during the week.

Ask yourself:

What new ideas did I save?
What customer insights repeated more than once?
What decisions did we make?
What workflows should be documented?
What prompts actually worked?
What research is still useful?
What notes should be linked together?
What should be archived?

Use this structure for your weekly review note:

Insight 1: Write the most important thing you learned this week.

Insight 2: Write the second most useful pattern, idea, or realization.

Insight 3: Write one thing that could change your strategy, content, product, or workflow.

Decision 1: Write one important decision made this week and why it matters.

Decision 2: Write another decision that should be remembered later.

Decision 3: Write anything the team should not debate again because it has already been decided.

Workflow 1: Write one process that became clearer this week.

Workflow 2: Write one repeatable task that should be turned into an SOP.

Workflow 3: Write one messy process that AI could help you organize.

Pattern 1: Write one repeated pain point from customers, users, or your audience.

Pattern 2: Write one repeated desire or outcome people keep asking for.

Pattern 3: Write one objection, confusion point, or friction point you noticed.

Prompt 1: Write one prompt that gave you a useful output this week.

Prompt 2: Write one prompt that should be saved into your prompt library.

Prompt 3: Write one prompt that needs to be improved.

Open Loop 1: Write something unfinished that needs a next action.

Open Loop 2: Write something waiting on another person, tool, or decision.

Open Loop 3: Write something you captured but still need to organize.

Connection 1: Link one note to a related project, decision, or workflow.

Connection 2: Link one customer insight to a product idea or content idea.

Connection 3: Link one research note to a decision or strategy note.

Focus 1: Write the most important thing to move forward next week.

Focus 2: Write the system, workflow, or project you want to improve.

Focus 3: Write one output you want your Obsidian Brain to help you create.

This is how your Obsidian Brain becomes useful.

Not by storing everything.

But by reviewing, connecting, and turning knowledge into action.

Imagine you run an AI content business.

Your Obsidian Brain could look like this:

Prompt - Create Carousel Copy
Prompt - Generate Reel Hooks
Prompt - Summarize AI Tool
Prompt - Write Beehiiv Guide

Research - Claude Code Use Cases
Research - AI Video Trends
Research - Obsidian Knowledge Graphs
Research - Instagram Carousel Performance

Meeting - Client Feedback Motion
Meeting - BestApps Content Planning
Meeting - Newsletter Strategy

Customer Insight - People Want Copy Paste Guides
Customer Insight - Beginners Need Setup Steps
Customer Insight - AI Tools Feel Overwhelming

Product Idea - AI Prompt Library
Product Idea - Obsidian Brain Template
Product Idea - 30 Day AI Builder Community

Workflow - Create Carousel
Workflow - Create Beehiiv Lead Magnet
Workflow - ManyChat Keyword Setup
Workflow - AI Tool Research Process

Decision - Use Comment OB as CTA
Decision - Keep Guide Beginner Friendly
Decision - Avoid Unverified Leak Claims

Now your content, guides, offers, and prompts are all connected.

This is how you stop starting from zero.

Obsidian official site:
https://obsidian.md

Obsidian Help Center:
https://obsidian.md/help

Obsidian Web Clipper:
https://obsidian.md/clipper

Obsidian Internal Links Help:
https://obsidian.md/help/links

Obsidian Core Plugins Help:
https://obsidian.md/help/plugins

ChatGPT:
https://chatgpt.com

Claude:
https://claude.ai

Download Obsidian.

Create a new vault.

Name it Company Brain.

Create:

00 Inbox
01 Prompts
02 Research
03 Meeting Notes
04 Customer Insights
05 Product Ideas
06 Internal Docs
07 Workflows
08 Decisions
09 People
10 Projects
11 Templates
12 Archive

Create templates for:

Prompt
Research
Meeting
Customer Insight
Product Idea
Workflow
Decision

Create one note in each of these folders:

1 prompt
1 research note
1 meeting note
1 customer insight
1 product idea
1 workflow
1 decision

Open every note and add at least 2 links to other notes.

Use this format:

[[Note Name]]

Paste 3 notes into Claude or ChatGPT and ask:

Analyze these notes and suggest what I should link, improve, create, or turn into a workflow.

Now your Obsidian Brain is alive.

Use this checklist to know if your system is working:

Most people think AI gets better when the model gets better.

That is only half true.

AI gets dramatically more useful when your context gets better.

Your Obsidian Brain is how you build that context.

It gives your work memory.

It gives your ideas structure.

It gives your prompts a home.

It gives your research a map.

It gives your decisions a history.

And it gives your AI something much more powerful to work with:

Your actual knowledge.