Python: Support structuredContent in MCP tool results and fix sampling options type#4763

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eavanvalkenburg wants to merge 9 commits intomicrosoft:mainfrom

eavanvalkenburg:agent/fix-4625-1

Commits on Mar 20, 2026

Support MCP sampling tools capability (#4625)

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Apply pre-commit auto-fixes

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Fix #4625: Support MCP sampling tool with proper typing and structured content

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Fix lint: add author to TODO comment

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Address review feedback for #4625: remove default=str, add edge-case tests

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Sanitize sampling callback error to avoid leaking internals (#4625)

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Address review feedback for #4625: move params to options, restore error info

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Fix MCP sampling callback and structured content error handling (#4625)

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Address review feedback for #4625: review comment fixes

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