> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://docs.nvidia.com/nemo/datadesigner/llms.txt.
> For full documentation content, see https://docs.nvidia.com/nemo/datadesigner/llms-full.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://docs.nvidia.com/nemo/datadesigner/_mcp/server.

# Seed Readers

Seed readers are engine-side adapters that turn a configured seed source into tabular seed rows. The engine attaches a `SeedSource` and secret resolver, asks the reader for column names and dataset size, then streams batches into generation.

Related pages: [seeds](/code-reference/config/seeds), [Seed Datasets](/concepts/seed-datasets), and [FileSystemSeedReader Plugins](/plugins/file-system-seed-reader-plugins).