# Batch The DNAnexus Platform provides two command-line tools for transferring large numbers of files or large individual files between your local environment and the platform. [Upload Agent](/user/objects/uploading-and-downloading-files/batch/upload-agent.md) is a fast, concurrent upload client that can resume interrupted uploads and upload up to 1000 files at a time. [Download Agent](/user/objects/uploading-and-downloading-files/batch/download-agent.md) is designed for long-running downloads, verifying file integrity in real time and supporting post-download re-validation. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://documentation.dnanexus.com/user/objects/uploading-and-downloading-files/batch.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.