The Model Context Protocol (MCP) has been updated with SEP-2106, allowing tools to use the full JSON Schema 2020-12 vocabulary for defining their inputs and outputs. This enhancement enables more complex validation rules, including composition and conditional logic, to be embedded directly within the schema rather than relying on prose descriptions. The update also expands the `structuredContent` field to accept any JSON value, not just objects, providing greater flexibility for tool communication. AI
IMPACT Enhances tool definition and validation, enabling more robust agent-tool interactions.
RANK_REASON This is an update to a protocol specification, detailing new capabilities for defining tool inputs and outputs using JSON Schema. [lever_c_demoted from research: ic=1 ai=0.7]
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