@ericosiu: The Company Brain has 6 layers: LAYER 1: capture The brain only knows what made it into the system. Calls, CRM notes, S…
Summary
Eric Siu outlines a six-layer framework for building a 'Company Brain' AI system: capture, retrieval, source truth, permissions, feedback, and evaluation, emphasizing that without proper evaluation, the system remains unreliable.
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Cached at: 06/24/26, 06:21 AM
The Company Brain has 6 layers:
LAYER 1: capture
The brain only knows what made it into the system. Calls, CRM notes, Slack threads, SOPs, sales calls, client feedback.
If the raw material never lands, the agent has nothing to work with.
Scattered inputs, scattered answers.
LAYER 2: retrieval
Capture gives you the pile. This layer pulls the right piece off it.
A bigger knowledge base doesn’t make the agent smarter on its own. It has to grab the right context for the task, at the right moment, in the right format.
Bad retrieval makes good memory useless.
LAYER 3: source truth
Retrieval finds the context. This layer decides which version of it to trust.
A live CRM update beats a 9-month-old Google Doc. A client call beats a stale SOP. A manager-approved correction beats a random note.
Without source truth, the AI confidently repeats old information.
LAYER 4: permissions
A company brain can’t just be a shared folder with better search.
Sales shouldn’t see everything finance sees. A junior employee shouldn’t get the same context as leadership. Access follows role, workflow, and risk.
Skip this and your AI system becomes a security problem.
LAYER 5: feedback
This is the layer that quietly rots.
A human corrects the AI once. The correction disappears. The same mistake is back next week.
In a working company brain, corrections turn into rules, examples, updates, or eval cases. The system wakes up smarter tomorrow.
LAYER 6: evaluation
If nobody scores the output, nobody knows if the brain is improving.
Every serious AI workflow needs the loop: answer, human review, correction, rule, eval, better answer.
No eval layer and the system feels impressive but stays unreliable.
The simple test. Ask your AI agent 3 questions:
- Where did this answer come from?
- Which source won when sources conflicted?
- What changed after the last human correction?
If it can’t answer those, you don’t have a company brain yet.
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