Built from your Cognitive Fingerprint™

Your AI should stop starting from zero.

BigBrainOS is a done-for-you second brain. We extract how you actually think, install it into Claude + Notion, and hand you a system that already knows your business, your voice, and what happened yesterday.

Apply for a founding build$3,000 one time · four builds a month

Watch one meeting move through it ↓

A dimensional mark combining a fingerprint and a brain — One owner. One live system. Nothing changes permanently without your approval.

The problem

Right now, your AI forgets the moment the chat ends.

You explain the company again. You paste the call again. You fix the voice again. You copy the one useful answer somewhere safe by hand. Tomorrow, you do all of it again.

Reset 01Explain who I am againcontext lost

Reset 02Paste the call againsource lost

Reset 03Fix the voice againrules lost

Reset 04Move the output againwork lost

With a BigBrainThe context stays with the system.

What it is

A real system with a memory, in tools you already use.

Three parts, each with one job. No new software subscription to learn.

Notion holds your business.

BigBrainHQ is one searchable home for projects, decisions, meetings, and reusable ideas. You and your AI read from the same page, literally.

Claude does the work.

Personal skills read your meetings, calendar, and email, then write priorities, briefs, and drafts, and file every result where it belongs.

Your Cognitive Fingerprint makes it yours.

Your decision rules, voice, priorities, and blind spots become the layer every output passes through. That is why the drafts sound like you and the briefs are built the way you actually decide.

How it works

One meeting in. Five useful outcomes out.

The system pulls approved work, reads it through your fingerprint, runs the right personal skill, writes the outputs, and stops permanent changes for your review.

01Pull the sourceMeeting notes arrive on schedule.
02Read your rulesYour fingerprint changes the handling.
03Run the skillThe right personal workflow fires.
04Write the outputsPriorities, decisions, and drafts appear.
05Stop for approvalDurable changes wait for you.

Source · meeting notes

Weekly product call

July 15 · 42 min · pulled 4:05 pm

“Ship the first workshop invite Thursday. Max owns the opener. Hold the paid test until the checkout is verified.”

Fingerprint rule

“Lead with the decision, then the reasoning. Separate confirmed work from ideas.”

/transcript-router/decision-brief/voice-print

Tomorrow's priorities

Verify the checkout contract
Draft Thursday’s workshop invite
Keep the paid test on hold

Filed to: Daily desk

Decision brief

Paid test stays blocked.

Reason: checkout values haven’t been verified in the live path.

Filed to: Decision room

Voice-matched draft

Thursday’s workshop invite

The opener starts with the build they’ll leave with, then earns the explanation.

Filed to: Drafts

Waiting for you · 2 changes

Project state

Workshop invitation due Thursday

Operating memory

Paid tests stay blocked until checkout values are verified

Nothing changes permanently until you choose.

What it runs

Five surfaces, one system.

Pick one to see the work it produces, the sources it uses, and the approval it keeps visible.

Sample install

Tuesday, July 15

Daily desk

A focused view of what moved, what needs a decision, what should ship, and what changed in your system.

DecidePaid test stays blocked until checkout is verifiedneeds you

ShipThursday workshop invite, draft readyreview draft

MovedCheckout verification assigned and scheduleddone

Changed2 proposed memory updates from yesterday's callawaiting approval

Where it goes

Once it's running, you build on top of it.

Every example below starts from the foundation you're buying today. Because the system already knows your offers, your customers, and your voice, each new skill is an afternoon, not a project.

A newsletter that assembles itself

Drop links and voice notes all week. Your BigBrain drafts the issue in your voice, with your takes.

Proposals that start 70% done

Feed it the sales call. It drafts the proposal using your frameworks and your pricing logic.

Delegation docs from your patterns

The way you actually do the work becomes SOPs a new hire can follow, invisible checkpoints included.

A pipeline that updates itself

Calls and emails become deal stages, next steps, and follow-up drafts, filed without you touching them.

Content from every conversation

One client call becomes posts, emails, and article drafts that sound like you instead of like “content.”

Decision support that knows your blind spots

Your fingerprint includes where you tend to skip steps. The system pushes back exactly there.

None of these need a new tool. They’re skills added to the system you already own.

The build

Installed in seven working days.

We build against the work you already do. The handoff includes a real proof run and the first read-back from your living system.

$3,000one time

Day 01Inspect
Goals, tools, workflows, and current sources.
Day 02Extract
Your Cognitive Fingerprint and operating rules.
Day 03Connect
Approved sources, destinations, and permissions.
Day 04Build
Cowork project, BigBrainHQ, and personal skills.
Day 05Prove
One real work event runs from source to destination.
Day 06Calibrate
Live corrections sharpen the outputs and rules.
Day 07Read back
You see what moved, what changed, and what needs review.

The exact deliverable

One live system. Every part accounted for.

One owner, one primary Cowork project, one durable workspace, and enough connected work to prove the loop.

Founding build$3,000Capacity: four per month

01Cognitive Fingerprint operating profile
02Installed Claude Cowork project
03BigBrainHQ Notion front door
04Approved connection manifest
05Up to three source connections
06Scheduled transcript intake loop
07Three personal skills built around your repeated work
08Five universal operating skills
09Source, update, and approval protocols
10Personalized live system map
11One real-work proof run
12Day 3 to 5 calibration
13First weekly read-back
14Quick-start guide and handoff

Why you can trust it

The system shows its work.

Every update cites its source. Every destination is named. Every permanent change stops where you can see it. You approve what the system is allowed to remember.

The proof-run guarantee

If your installed system can’t process one approved real source item, produce its review packet, and show what still needs approval by the end of calibration, we keep working at no additional charge until it can.

Processing receipt · sample install

Saw: Weekly product call, July 15
Did: Transcript routing, decision prep, voice matching
Wrote: Daily desk, decision room, drafts
Proposed: 2 durable system changes
Status: Waiting for owner approval

No silent changes.

The founding build

Give your AI the context it keeps asking you to rebuild.

Book a short call. Tell me which meeting tool, calendar, email, and workspace you use. I'll confirm the connection path and whether this build fits before anything starts.

BigBrainOS · one owner$3,000One-time founding buildBook the fit call

Four builds per month. Scope is confirmed before the build starts.

Questions