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Title: [SEP-2356] File input support for tools and elicitation by ochafik · Pull Request #2217 · modelcontextprotocol/python-sdk · GitHub

Open Graph Title: [SEP-2356] File input support for tools and elicitation by ochafik · Pull Request #2217 · modelcontextprotocol/python-sdk

X Title: [SEP-2356] File input support for tools and elicitation by ochafik · Pull Request #2217 · modelcontextprotocol/python-sdk

Description: Summary Prototype implementation of the file input SEP for the Python SDK. Adds Pydantic models for declarative file inputs on tools and elicitation forms, gated by a new fileInputs client capability. SEP: modelcontextprotocol/modelcontextprotocol#2356 NoteThis is a draft prototype tracking the spec proposal. It will be updated as the SEP evolves and should not be merged until the spec PR lands. Changes FileInputsCapability — empty capability class (matches FormElicitationCapability pattern); wired into ClientCapabilities.file_inputs FileInputDescriptor — accept: list[str] | None, max_size: int | None Tool.input_files: dict[str, FileInputDescriptor] | None ElicitRequestFormParams.requested_files: dict[str, FileInputDescriptor] | None Exports for new types and test coverage StringArraySchema is intentionally omitted — the Python SDK models ElicitRequestedSchema as dict[str, Any] and does not enumerate primitive schema variants.

Open Graph Description: Summary Prototype implementation of the file input SEP for the Python SDK. Adds Pydantic models for declarative file inputs on tools and elicitation forms, gated by a new fileInputs client capabili...

X Description: Summary Prototype implementation of the file input SEP for the Python SDK. Adds Pydantic models for declarative file inputs on tools and elicitation forms, gated by a new fileInputs client capabili...

Opengraph URL: https://github.com/modelcontextprotocol/python-sdk/pull/2217

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[SEP-2356] File input support for tools and elicitation https://github.com/modelcontextprotocol/python-sdk/pull/2217/files#top
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d12cf17 Add FileInputDescriptor and fileInputs capability for file upload SEP claude Mar 4, 2026 https://github.com/modelcontextprotocol/python-sdk/pull/2217/commits/d12cf17648177726c4998d0dcd8dad781e9f8f4e
75374a0 chore(sep-2356): sync file-input types to spec PR @ef7d52f ochafik Apr 23, 2026 https://github.com/modelcontextprotocol/python-sdk/pull/2217/commits/75374a0fca32efa51ec302bbf50952b65140b326
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