MCP's file transfer draft keeps bytes out of your model's context: 5 mechanics and 3 open security questions
Yesterday the MCP maintainers published the first draft of an extension for moving files between clients and tools. If you build MCP servers, this is the piece you have been hand-rolling: base64 blobs in tool arguments, bespoke presigned-URL conventions, CSVs pasted into prompts. The extension, ide…
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- 2026-11-12 13:06 · DEV Community — AI
MCP's file transfer draft keeps bytes out of your model's context: 5 mechanics and 3 open security questions