# Knowledge Base Domain

Knowledge bases are either external endpoints or managed deployments.

## Core Fields

All knowledge bases share these core fields:

- identity: id, name
- presentation: icon, description, tags
- classification: mode
- content: documents
- placement: stack

## KB Document

Each document includes:

- identity and relation: id, kb
- presentation: name, description, tags
- file metadata: type, sizeBytes, source
- chunking configuration: chunking
- optional indexing status

## Document Types

Supported document types:

- text
- markdown
- html
- pdf
- docx

## External Knowledge Base

External knowledge bases include:

- mode: external
- optional availability status

## Managed Knowledge Base

Managed knowledge bases include:

- optional embedding model reference
- optional reranker model reference
- runtime template
- optional ingestion runtime template
- optional egestion runtime template
- optional deployment status

## Knowledge Base Union

- KnowledgeBase = ManagedKB | ExternalKB