> ## Documentation Index
> Fetch the complete documentation index at: https://docs.usecrew.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Knowledge Base (The Brain)

> The centralized intelligence that powers your entire AI crew

# The Brain (Knowledge Base)

The **Knowledge Base**, often called "The Brain," is the single source of truth for your AI workforce. Instead of training each agent individually, you update The Brain once, and every agent in your Crew—whether they handle calls, SMS, or chat—instantly knows the new information.

## Automatic Extraction

Crew is designed to build The Brain automatically. When you onboard, we scan your digital footprint to extract core business facts.

<Steps>
  <Step title="Website Scan">
    We crawl your website to find services, pricing, team members, and hours.
  </Step>

  <Step title="Document Analysis">
    We parse uploaded PDFs (menus, brochures, policy documents) to understand complex details.
  </Step>

  <Step title="Structured Data">
    We identify and organize tabular data like "Service Duration" and "Cost" for accurate quoting.
  </Step>
</Steps>

## Content Types

The Brain organizes information into four categories:

### 1. Core Profile

Essential facts about your business that rarely change.

* **Location & Parking:** "123 Main St, free parking in back."
* **Hours:** "Mon-Fri 9-5, Closed Sundays."
* **Contact:** "Phone: 555-0123, Email: [hello@acme.com](mailto:hello@acme.com)"

### 2. Services & Pricing

Detailed breakdown of what you sell.

* **Service List:** "Teeth Whitening, Deep Cleaning, Invisalign"
* **Pricing Models:** "$100/hr" or "Starts at $500"
* **Duration:** "Takes about 45 minutes"

### 3. Policies & FAQs

Rules and common questions.

* **Cancellation:** "24-hour notice required for full refund."
* **Insurance:** "We accept Blue Cross and Aetna."
* **Specific Q\&A:** "Do you treat children? Yes, ages 5 and up."

### 4. Custom Knowledge

Free-form text for nuanced topics.

* **Brand Story:** "Founded in 1995 to serve the local community..."
* **Staff Bios:** "Dr. Smith specializes in orthodontics..."

## Managing The Brain

You have full control over what your agents know.

### Editing Extracted Data

Sometimes our scanner captures too much or too little. You can refine this in the dashboard:

1. Go to **Brain** in the sidebar.
2. Click on any section (e.g., **Services**).
3. Edit the text or values.
4. Click **Save**. *All agents update instantly.*

### Adding Manual Entries

For internal knowledge that isn't on your website:

1. Click **+ Add Knowledge**.
2. Choose **Text** or **Q\&A**.
3. Type the information (e.g., "The gate code for delivery is 1234").
4. Set visibility (Internal only vs. Public).

## Best Practices

<AccordionGroup>
  <Accordion title="Write for Speech">
    Remember, your Voice Agents will read this text aloud.

    * **Bad:** "Hours: M-F 9-5."
    * **Good:** "We are open Monday through Friday from 9 AM to 5 PM."
  </Accordion>

  <Accordion title="Be Explicit with Prices">
    Agents shouldn't guess.

    * **Bad:** "Prices vary."
    * **Good:** "Basic cleaning is $100. Deep cleaning starts at $200 depending on condition."
  </Accordion>

  <Accordion title="Update Regularly">
    If your holiday hours change, update The Brain immediately to prevent agents from booking appointments when you're closed.
  </Accordion>
</AccordionGroup>