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

# searchKnowledgeSources

> Perform a semantic (vector) search across your workspace's knowledge sources and help center articles.
Returns up to `pageSize` results (default 10, max 50) ranked by relevance. Use `options` to restrict
results by label type, content type (indexed documents vs help center articles), or to include
help center articles that are not publicly accessible.