> ## 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.

# Knowledge gaps

> Knowledge gaps are questions customers keep asking that your knowledge sources do not answer, detected by Ari and tracked as tasks.

A knowledge gap is a question customers keep asking that your knowledge sources don't answer. When [Ari](/docs/product/agents/ari) can't answer a customer and hands the thread to your team, Plain records a signal. Related signals are grouped into one gap with an AI-generated title and description, and Plain raises a [task](/docs/graphql/tasks) for your team to fill it. For how gaps are detected, reviewed, and filled in the app, see [Knowledge gaps](/docs/product/agents/knowledge-gaps).

<Note>
  Knowledge gaps are in beta. The queries and fields on these pages may change without a deprecation period.
</Note>

<Snippet file="graphql/sdk-note.mdx" />

The API is read-only. Plain creates gaps; you can't create, edit, or delete one. A gap's status is its task's status. To change it, [update the task](/docs/graphql/tasks/update).

Use the API to list the gaps in your workspace, sorted by signal count, or to read the gap behind a task your team is working on. To fill a gap, write the answer into your [Help Center](/docs/graphql/help-center) or wherever Ari reads your knowledge from.