The model never needs to see the file

A new solution has been developed to transfer files from a personal device to a remote server without routing the data through an AI agent's context window, which traditionally inflates data size and complicates processing. This method involves having the AI agent generate a reference, such as a file path, instead of embedding the actual file data in its output, thereby avoiding the tokenization problem associated with large file sizes. A hook program on the user's machine recognizes this file path and substitutes the actual file data before sending the request out, ensuring the AI never handles the file bytes directly. This approach, which does not require server changes and preserves security by not granting the AI unnecessary data access, is being formalized in the Machine Communication Protocol (MCP) to standardize file handling in AI systems. The method aims to improve efficiency and security, particularly for autonomous AI operations, by enabling client-side resolution of file paths within authorized boundaries, thus preventing unauthorized data access and ensuring the AI only processes necessary information.