> ## Documentation Index
> Fetch the complete documentation index at: https://plain-docs-orca-916-agent-docs-restructure.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# deleteThreadFieldSchema

> Permanently deletes a thread field schema and removes all field values stored against it on every thread. This action cannot be undone. Requires the `threadFieldSchema:delete` permission.