mcp: enforce that a server may only NARROW the contract, and pin the last four restatements (#9662) - #9833

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mcp/validator-invariants-9661

Jul 29, 2026

Commits on Jul 29, 2026

mcp: enforce that a server may only NARROW the contract, and pin the last four restatements (#9662)
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mcp: delete the last hand-written tool shapes from the remote server (#9662)
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