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mcp: Remove resumability and introduce MissingRequiredClientCapability error data (#1005)

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Fixes #966
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Guglielmo Colombo 2026-06-15 09:47:42 +02:00 • committed by GitHub
commit 4dc99b48e1
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1 changed files with 31 additions and 5 deletions
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15
mcp/protocol.go
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@ -2116,3 +2116,18 @@ type UnsupportedProtocolVersionData struct {
// Requested is the protocol version the client asked for.
Requested string `json:"requested"`
}
// MissingRequiredClientCapabilityData is the SEP-2575 payload carried in the
// `data` field of a JSON-RPC error response with code
// [CodeMissingRequiredClientCapabilities]. The server uses it to indicate
// which client capabilities are required to process the request but were not
// declared by the client in its per-request `_meta` field.
//
// Handlers that require a specific client capability should inspect the
// per-request [ServerRequest.ClientCapabilities] and return a JSON-RPC error
// populated with this structure when the required capability is missing.
type MissingRequiredClientCapabilityData struct {
// RequiredCapabilities is the set of capabilities the server requires
// from the client to process the request.
RequiredCapabilities *ClientCapabilities `json:"requiredCapabilities"`
}