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docs: prepare for stable 3.0 release (#1073)

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* docs: prepare for stable 3.0 release

* docs: update stable spec code references
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Dale Seo 2026-07-28 15:09:56 -04:00 • committed by GitHub
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4
crates/rmcp/tests/test_message_schema/client_json_rpc_message_schema.json
View file

@ -1206,7 +1206,7 @@
]
},
"MetaObject": {
"description": "See [specification/draft/basic/index#general-fields] for notes on _meta usage.",
"description": "See [MCP general fields](https://modelcontextprotocol.io/specification/2026-07-28/basic#general-fields) for notes on _meta usage.",
"type": "object",
"additionalProperties": true
},
@ -2233,7 +2233,7 @@
"type": "object",
"properties": {
"_meta": {
"description": "Protocol-level metadata. Required by the draft wire schema.",
"description": "Protocol-level metadata. Required by the 2026-07-28 wire schema.",
"type": "object",
"properties": {
"io.modelcontextprotocol/clientCapabilities": {

4
crates/rmcp/tests/test_message_schema/client_json_rpc_message_schema_current.json
View file

@ -1206,7 +1206,7 @@
]
},
"MetaObject": {
"description": "See [specification/draft/basic/index#general-fields] for notes on _meta usage.",
"description": "See [MCP general fields](https://modelcontextprotocol.io/specification/2026-07-28/basic#general-fields) for notes on _meta usage.",
"type": "object",
"additionalProperties": true
},
@ -2233,7 +2233,7 @@
"type": "object",
"properties": {
"_meta": {
"description": "Protocol-level metadata. Required by the draft wire schema.",
"description": "Protocol-level metadata. Required by the 2026-07-28 wire schema.",
"type": "object",
"properties": {
"io.modelcontextprotocol/clientCapabilities": {

18
crates/rmcp/tests/test_message_schema/server_json_rpc_message_schema.json
View file

@ -199,7 +199,7 @@
]
},
"resultType": {
"description": "Result type discriminator (SEP-2322). Required by the [spec schema]\nfor servers implementing protocol version `2026-07-28`, but optional\nhere because this type also models results from older protocol\nversions, which do not carry the field: `None` means absent on the\nwire, and per the spec \"the client MUST treat the absent field as\n`\"complete\"`\". Constructors default to `Some(ResultType::COMPLETE)`;\nthe server handler clears the field when responding to peers that\nnegotiated an older version.\n\n[spec schema]: https://github.com/modelcontextprotocol/modelcontextprotocol/blob/5bed7b30527019e34ccb0eb474636651424501f6/schema/draft/schema.ts#L225-L234",
"description": "Result type discriminator (SEP-2322). Required by the [spec schema]\nfor servers implementing protocol version `2026-07-28`, but optional\nhere because this type also models results from older protocol\nversions, which do not carry the field: `None` means absent on the\nwire, and per the spec \"the client MUST treat the absent field as\n`\"complete\"`\". Constructors default to `Some(ResultType::COMPLETE)`;\nthe server handler clears the field when responding to peers that\nnegotiated an older version.\n\n[spec schema]: https://github.com/modelcontextprotocol/modelcontextprotocol/blob/271ecc9accafdd9b83a3c869fa67c22953b2af80/schema/2026-07-28/schema.ts#L219-L235",
"anyOf": [
{
"$ref": "#/definitions/ResultType"
@ -328,7 +328,7 @@
"$ref": "#/definitions/CompletionInfo"
},
"resultType": {
"description": "Result type discriminator (SEP-2322). Required by the [spec schema]\nfor servers implementing protocol version `2026-07-28`, but optional\nhere because this type also models results from older protocol\nversions, which do not carry the field: `None` means absent on the\nwire, and per the spec \"the client MUST treat the absent field as\n`\"complete\"`\". Constructors default to `Some(ResultType::COMPLETE)`;\nthe server handler clears the field when responding to peers that\nnegotiated an older version.\n\n[spec schema]: https://github.com/modelcontextprotocol/modelcontextprotocol/blob/5bed7b30527019e34ccb0eb474636651424501f6/schema/draft/schema.ts#L225-L234",
"description": "Result type discriminator (SEP-2322). Required by the [spec schema]\nfor servers implementing protocol version `2026-07-28`, but optional\nhere because this type also models results from older protocol\nversions, which do not carry the field: `None` means absent on the\nwire, and per the spec \"the client MUST treat the absent field as\n`\"complete\"`\". Constructors default to `Some(ResultType::COMPLETE)`;\nthe server handler clears the field when responding to peers that\nnegotiated an older version.\n\n[spec schema]: https://github.com/modelcontextprotocol/modelcontextprotocol/blob/271ecc9accafdd9b83a3c869fa67c22953b2af80/schema/2026-07-28/schema.ts#L219-L235",
"anyOf": [
{
"$ref": "#/definitions/ResultType"
@ -1144,7 +1144,7 @@
}
},
"resultType": {
"description": "Result type discriminator (SEP-2322). Required by the [spec schema]\nfor servers implementing protocol version `2026-07-28`, but optional\nhere because this type also models results from older protocol\nversions, which do not carry the field: `None` means absent on the\nwire, and per the spec \"the client MUST treat the absent field as\n`\"complete\"`\". Constructors default to `Some(ResultType::COMPLETE)`;\nthe server handler clears the field when responding to peers that\nnegotiated an older version.\n\n[spec schema]: https://github.com/modelcontextprotocol/modelcontextprotocol/blob/5bed7b30527019e34ccb0eb474636651424501f6/schema/draft/schema.ts#L225-L234",
"description": "Result type discriminator (SEP-2322). Required by the [spec schema]\nfor servers implementing protocol version `2026-07-28`, but optional\nhere because this type also models results from older protocol\nversions, which do not carry the field: `None` means absent on the\nwire, and per the spec \"the client MUST treat the absent field as\n`\"complete\"`\". Constructors default to `Some(ResultType::COMPLETE)`;\nthe server handler clears the field when responding to peers that\nnegotiated an older version.\n\n[spec schema]: https://github.com/modelcontextprotocol/modelcontextprotocol/blob/271ecc9accafdd9b83a3c869fa67c22953b2af80/schema/2026-07-28/schema.ts#L219-L235",
"anyOf": [
{
"$ref": "#/definitions/ResultType"
@ -1789,7 +1789,7 @@
}
},
"resultType": {
"description": "Result type discriminator (SEP-2322). Required by the [spec schema]\nfor servers implementing protocol version `2026-07-28`, but optional\nhere because this type also models results from older protocol\nversions, which do not carry the field: `None` means absent on the\nwire, and per the spec \"the client MUST treat the absent field as\n`\"complete\"`\". Constructors default to `Some(ResultType::COMPLETE)`;\nthe server handler clears the field when responding to peers that\nnegotiated an older version.\n\n[spec schema]: https://github.com/modelcontextprotocol/modelcontextprotocol/blob/5bed7b30527019e34ccb0eb474636651424501f6/schema/draft/schema.ts#L225-L234",
"description": "Result type discriminator (SEP-2322). Required by the [spec schema]\nfor servers implementing protocol version `2026-07-28`, but optional\nhere because this type also models results from older protocol\nversions, which do not carry the field: `None` means absent on the\nwire, and per the spec \"the client MUST treat the absent field as\n`\"complete\"`\". Constructors default to `Some(ResultType::COMPLETE)`;\nthe server handler clears the field when responding to peers that\nnegotiated an older version.\n\n[spec schema]: https://github.com/modelcontextprotocol/modelcontextprotocol/blob/271ecc9accafdd9b83a3c869fa67c22953b2af80/schema/2026-07-28/schema.ts#L219-L235",
"anyOf": [
{
"$ref": "#/definitions/ResultType"
@ -1850,7 +1850,7 @@
}
},
"resultType": {
"description": "Result type discriminator (SEP-2322). Required by the [spec schema]\nfor servers implementing protocol version `2026-07-28`, but optional\nhere because this type also models results from older protocol\nversions, which do not carry the field: `None` means absent on the\nwire, and per the spec \"the client MUST treat the absent field as\n`\"complete\"`\". Constructors default to `Some(ResultType::COMPLETE)`;\nthe server handler clears the field when responding to peers that\nnegotiated an older version.\n\n[spec schema]: https://github.com/modelcontextprotocol/modelcontextprotocol/blob/5bed7b30527019e34ccb0eb474636651424501f6/schema/draft/schema.ts#L225-L234",
"description": "Result type discriminator (SEP-2322). Required by the [spec schema]\nfor servers implementing protocol version `2026-07-28`, but optional\nhere because this type also models results from older protocol\nversions, which do not carry the field: `None` means absent on the\nwire, and per the spec \"the client MUST treat the absent field as\n`\"complete\"`\". Constructors default to `Some(ResultType::COMPLETE)`;\nthe server handler clears the field when responding to peers that\nnegotiated an older version.\n\n[spec schema]: https://github.com/modelcontextprotocol/modelcontextprotocol/blob/271ecc9accafdd9b83a3c869fa67c22953b2af80/schema/2026-07-28/schema.ts#L219-L235",
"anyOf": [
{
"$ref": "#/definitions/ResultType"
@ -1911,7 +1911,7 @@
}
},
"resultType": {
"description": "Result type discriminator (SEP-2322). Required by the [spec schema]\nfor servers implementing protocol version `2026-07-28`, but optional\nhere because this type also models results from older protocol\nversions, which do not carry the field: `None` means absent on the\nwire, and per the spec \"the client MUST treat the absent field as\n`\"complete\"`\". Constructors default to `Some(ResultType::COMPLETE)`;\nthe server handler clears the field when responding to peers that\nnegotiated an older version.\n\n[spec schema]: https://github.com/modelcontextprotocol/modelcontextprotocol/blob/5bed7b30527019e34ccb0eb474636651424501f6/schema/draft/schema.ts#L225-L234",
"description": "Result type discriminator (SEP-2322). Required by the [spec schema]\nfor servers implementing protocol version `2026-07-28`, but optional\nhere because this type also models results from older protocol\nversions, which do not carry the field: `None` means absent on the\nwire, and per the spec \"the client MUST treat the absent field as\n`\"complete\"`\". Constructors default to `Some(ResultType::COMPLETE)`;\nthe server handler clears the field when responding to peers that\nnegotiated an older version.\n\n[spec schema]: https://github.com/modelcontextprotocol/modelcontextprotocol/blob/271ecc9accafdd9b83a3c869fa67c22953b2af80/schema/2026-07-28/schema.ts#L219-L235",
"anyOf": [
{
"$ref": "#/definitions/ResultType"
@ -1971,7 +1971,7 @@
]
},
"resultType": {
"description": "Result type discriminator (SEP-2322). Required by the [spec schema]\nfor servers implementing protocol version `2026-07-28`, but optional\nhere because this type also models results from older protocol\nversions, which do not carry the field: `None` means absent on the\nwire, and per the spec \"the client MUST treat the absent field as\n`\"complete\"`\". Constructors default to `Some(ResultType::COMPLETE)`;\nthe server handler clears the field when responding to peers that\nnegotiated an older version.\n\n[spec schema]: https://github.com/modelcontextprotocol/modelcontextprotocol/blob/5bed7b30527019e34ccb0eb474636651424501f6/schema/draft/schema.ts#L225-L234",
"description": "Result type discriminator (SEP-2322). Required by the [spec schema]\nfor servers implementing protocol version `2026-07-28`, but optional\nhere because this type also models results from older protocol\nversions, which do not carry the field: `None` means absent on the\nwire, and per the spec \"the client MUST treat the absent field as\n`\"complete\"`\". Constructors default to `Some(ResultType::COMPLETE)`;\nthe server handler clears the field when responding to peers that\nnegotiated an older version.\n\n[spec schema]: https://github.com/modelcontextprotocol/modelcontextprotocol/blob/271ecc9accafdd9b83a3c869fa67c22953b2af80/schema/2026-07-28/schema.ts#L219-L235",
"anyOf": [
{
"$ref": "#/definitions/ResultType"
@ -2061,7 +2061,7 @@
]
},
"MetaObject": {
"description": "See [specification/draft/basic/index#general-fields] for notes on _meta usage.",
"description": "See [MCP general fields](https://modelcontextprotocol.io/specification/2026-07-28/basic#general-fields) for notes on _meta usage.",
"type": "object",
"additionalProperties": true
},
@ -2595,7 +2595,7 @@
}
},
"resultType": {
"description": "Result type discriminator (SEP-2322). Required by the [spec schema]\nfor servers implementing protocol version `2026-07-28`, but optional\nhere because this type also models results from older protocol\nversions, which do not carry the field: `None` means absent on the\nwire, and per the spec \"the client MUST treat the absent field as\n`\"complete\"`\". Constructors default to `Some(ResultType::COMPLETE)`;\nthe server handler clears the field when responding to peers that\nnegotiated an older version.\n\n[spec schema]: https://github.com/modelcontextprotocol/modelcontextprotocol/blob/5bed7b30527019e34ccb0eb474636651424501f6/schema/draft/schema.ts#L225-L234",
"description": "Result type discriminator (SEP-2322). Required by the [spec schema]\nfor servers implementing protocol version `2026-07-28`, but optional\nhere because this type also models results from older protocol\nversions, which do not carry the field: `None` means absent on the\nwire, and per the spec \"the client MUST treat the absent field as\n`\"complete\"`\". Constructors default to `Some(ResultType::COMPLETE)`;\nthe server handler clears the field when responding to peers that\nnegotiated an older version.\n\n[spec schema]: https://github.com/modelcontextprotocol/modelcontextprotocol/blob/271ecc9accafdd9b83a3c869fa67c22953b2af80/schema/2026-07-28/schema.ts#L219-L235",
"anyOf": [
{
"$ref": "#/definitions/ResultType"

18
crates/rmcp/tests/test_message_schema/server_json_rpc_message_schema_current.json
View file

@ -199,7 +199,7 @@
]
},
"resultType": {
"description": "Result type discriminator (SEP-2322). Required by the [spec schema]\nfor servers implementing protocol version `2026-07-28`, but optional\nhere because this type also models results from older protocol\nversions, which do not carry the field: `None` means absent on the\nwire, and per the spec \"the client MUST treat the absent field as\n`\"complete\"`\". Constructors default to `Some(ResultType::COMPLETE)`;\nthe server handler clears the field when responding to peers that\nnegotiated an older version.\n\n[spec schema]: https://github.com/modelcontextprotocol/modelcontextprotocol/blob/5bed7b30527019e34ccb0eb474636651424501f6/schema/draft/schema.ts#L225-L234",
"description": "Result type discriminator (SEP-2322). Required by the [spec schema]\nfor servers implementing protocol version `2026-07-28`, but optional\nhere because this type also models results from older protocol\nversions, which do not carry the field: `None` means absent on the\nwire, and per the spec \"the client MUST treat the absent field as\n`\"complete\"`\". Constructors default to `Some(ResultType::COMPLETE)`;\nthe server handler clears the field when responding to peers that\nnegotiated an older version.\n\n[spec schema]: https://github.com/modelcontextprotocol/modelcontextprotocol/blob/271ecc9accafdd9b83a3c869fa67c22953b2af80/schema/2026-07-28/schema.ts#L219-L235",
"anyOf": [
{
"$ref": "#/definitions/ResultType"
@ -328,7 +328,7 @@
"$ref": "#/definitions/CompletionInfo"
},
"resultType": {
"description": "Result type discriminator (SEP-2322). Required by the [spec schema]\nfor servers implementing protocol version `2026-07-28`, but optional\nhere because this type also models results from older protocol\nversions, which do not carry the field: `None` means absent on the\nwire, and per the spec \"the client MUST treat the absent field as\n`\"complete\"`\". Constructors default to `Some(ResultType::COMPLETE)`;\nthe server handler clears the field when responding to peers that\nnegotiated an older version.\n\n[spec schema]: https://github.com/modelcontextprotocol/modelcontextprotocol/blob/5bed7b30527019e34ccb0eb474636651424501f6/schema/draft/schema.ts#L225-L234",
"description": "Result type discriminator (SEP-2322). Required by the [spec schema]\nfor servers implementing protocol version `2026-07-28`, but optional\nhere because this type also models results from older protocol\nversions, which do not carry the field: `None` means absent on the\nwire, and per the spec \"the client MUST treat the absent field as\n`\"complete\"`\". Constructors default to `Some(ResultType::COMPLETE)`;\nthe server handler clears the field when responding to peers that\nnegotiated an older version.\n\n[spec schema]: https://github.com/modelcontextprotocol/modelcontextprotocol/blob/271ecc9accafdd9b83a3c869fa67c22953b2af80/schema/2026-07-28/schema.ts#L219-L235",
"anyOf": [
{
"$ref": "#/definitions/ResultType"
@ -1144,7 +1144,7 @@
}
},
"resultType": {
"description": "Result type discriminator (SEP-2322). Required by the [spec schema]\nfor servers implementing protocol version `2026-07-28`, but optional\nhere because this type also models results from older protocol\nversions, which do not carry the field: `None` means absent on the\nwire, and per the spec \"the client MUST treat the absent field as\n`\"complete\"`\". Constructors default to `Some(ResultType::COMPLETE)`;\nthe server handler clears the field when responding to peers that\nnegotiated an older version.\n\n[spec schema]: https://github.com/modelcontextprotocol/modelcontextprotocol/blob/5bed7b30527019e34ccb0eb474636651424501f6/schema/draft/schema.ts#L225-L234",
"description": "Result type discriminator (SEP-2322). Required by the [spec schema]\nfor servers implementing protocol version `2026-07-28`, but optional\nhere because this type also models results from older protocol\nversions, which do not carry the field: `None` means absent on the\nwire, and per the spec \"the client MUST treat the absent field as\n`\"complete\"`\". Constructors default to `Some(ResultType::COMPLETE)`;\nthe server handler clears the field when responding to peers that\nnegotiated an older version.\n\n[spec schema]: https://github.com/modelcontextprotocol/modelcontextprotocol/blob/271ecc9accafdd9b83a3c869fa67c22953b2af80/schema/2026-07-28/schema.ts#L219-L235",
"anyOf": [
{
"$ref": "#/definitions/ResultType"
@ -1789,7 +1789,7 @@
}
},
"resultType": {
"description": "Result type discriminator (SEP-2322). Required by the [spec schema]\nfor servers implementing protocol version `2026-07-28`, but optional\nhere because this type also models results from older protocol\nversions, which do not carry the field: `None` means absent on the\nwire, and per the spec \"the client MUST treat the absent field as\n`\"complete\"`\". Constructors default to `Some(ResultType::COMPLETE)`;\nthe server handler clears the field when responding to peers that\nnegotiated an older version.\n\n[spec schema]: https://github.com/modelcontextprotocol/modelcontextprotocol/blob/5bed7b30527019e34ccb0eb474636651424501f6/schema/draft/schema.ts#L225-L234",
"description": "Result type discriminator (SEP-2322). Required by the [spec schema]\nfor servers implementing protocol version `2026-07-28`, but optional\nhere because this type also models results from older protocol\nversions, which do not carry the field: `None` means absent on the\nwire, and per the spec \"the client MUST treat the absent field as\n`\"complete\"`\". Constructors default to `Some(ResultType::COMPLETE)`;\nthe server handler clears the field when responding to peers that\nnegotiated an older version.\n\n[spec schema]: https://github.com/modelcontextprotocol/modelcontextprotocol/blob/271ecc9accafdd9b83a3c869fa67c22953b2af80/schema/2026-07-28/schema.ts#L219-L235",
"anyOf": [
{
"$ref": "#/definitions/ResultType"
@ -1850,7 +1850,7 @@
}
},
"resultType": {
"description": "Result type discriminator (SEP-2322). Required by the [spec schema]\nfor servers implementing protocol version `2026-07-28`, but optional\nhere because this type also models results from older protocol\nversions, which do not carry the field: `None` means absent on the\nwire, and per the spec \"the client MUST treat the absent field as\n`\"complete\"`\". Constructors default to `Some(ResultType::COMPLETE)`;\nthe server handler clears the field when responding to peers that\nnegotiated an older version.\n\n[spec schema]: https://github.com/modelcontextprotocol/modelcontextprotocol/blob/5bed7b30527019e34ccb0eb474636651424501f6/schema/draft/schema.ts#L225-L234",
"description": "Result type discriminator (SEP-2322). Required by the [spec schema]\nfor servers implementing protocol version `2026-07-28`, but optional\nhere because this type also models results from older protocol\nversions, which do not carry the field: `None` means absent on the\nwire, and per the spec \"the client MUST treat the absent field as\n`\"complete\"`\". Constructors default to `Some(ResultType::COMPLETE)`;\nthe server handler clears the field when responding to peers that\nnegotiated an older version.\n\n[spec schema]: https://github.com/modelcontextprotocol/modelcontextprotocol/blob/271ecc9accafdd9b83a3c869fa67c22953b2af80/schema/2026-07-28/schema.ts#L219-L235",
"anyOf": [
{
"$ref": "#/definitions/ResultType"
@ -1911,7 +1911,7 @@
}
},
"resultType": {
"description": "Result type discriminator (SEP-2322). Required by the [spec schema]\nfor servers implementing protocol version `2026-07-28`, but optional\nhere because this type also models results from older protocol\nversions, which do not carry the field: `None` means absent on the\nwire, and per the spec \"the client MUST treat the absent field as\n`\"complete\"`\". Constructors default to `Some(ResultType::COMPLETE)`;\nthe server handler clears the field when responding to peers that\nnegotiated an older version.\n\n[spec schema]: https://github.com/modelcontextprotocol/modelcontextprotocol/blob/5bed7b30527019e34ccb0eb474636651424501f6/schema/draft/schema.ts#L225-L234",
"description": "Result type discriminator (SEP-2322). Required by the [spec schema]\nfor servers implementing protocol version `2026-07-28`, but optional\nhere because this type also models results from older protocol\nversions, which do not carry the field: `None` means absent on the\nwire, and per the spec \"the client MUST treat the absent field as\n`\"complete\"`\". Constructors default to `Some(ResultType::COMPLETE)`;\nthe server handler clears the field when responding to peers that\nnegotiated an older version.\n\n[spec schema]: https://github.com/modelcontextprotocol/modelcontextprotocol/blob/271ecc9accafdd9b83a3c869fa67c22953b2af80/schema/2026-07-28/schema.ts#L219-L235",
"anyOf": [
{
"$ref": "#/definitions/ResultType"
@ -1971,7 +1971,7 @@
]
},
"resultType": {
"description": "Result type discriminator (SEP-2322). Required by the [spec schema]\nfor servers implementing protocol version `2026-07-28`, but optional\nhere because this type also models results from older protocol\nversions, which do not carry the field: `None` means absent on the\nwire, and per the spec \"the client MUST treat the absent field as\n`\"complete\"`\". Constructors default to `Some(ResultType::COMPLETE)`;\nthe server handler clears the field when responding to peers that\nnegotiated an older version.\n\n[spec schema]: https://github.com/modelcontextprotocol/modelcontextprotocol/blob/5bed7b30527019e34ccb0eb474636651424501f6/schema/draft/schema.ts#L225-L234",
"description": "Result type discriminator (SEP-2322). Required by the [spec schema]\nfor servers implementing protocol version `2026-07-28`, but optional\nhere because this type also models results from older protocol\nversions, which do not carry the field: `None` means absent on the\nwire, and per the spec \"the client MUST treat the absent field as\n`\"complete\"`\". Constructors default to `Some(ResultType::COMPLETE)`;\nthe server handler clears the field when responding to peers that\nnegotiated an older version.\n\n[spec schema]: https://github.com/modelcontextprotocol/modelcontextprotocol/blob/271ecc9accafdd9b83a3c869fa67c22953b2af80/schema/2026-07-28/schema.ts#L219-L235",
"anyOf": [
{
"$ref": "#/definitions/ResultType"
@ -2061,7 +2061,7 @@
]
},
"MetaObject": {
"description": "See [specification/draft/basic/index#general-fields] for notes on _meta usage.",
"description": "See [MCP general fields](https://modelcontextprotocol.io/specification/2026-07-28/basic#general-fields) for notes on _meta usage.",
"type": "object",
"additionalProperties": true
},
@ -2595,7 +2595,7 @@
}
},
"resultType": {
"description": "Result type discriminator (SEP-2322). Required by the [spec schema]\nfor servers implementing protocol version `2026-07-28`, but optional\nhere because this type also models results from older protocol\nversions, which do not carry the field: `None` means absent on the\nwire, and per the spec \"the client MUST treat the absent field as\n`\"complete\"`\". Constructors default to `Some(ResultType::COMPLETE)`;\nthe server handler clears the field when responding to peers that\nnegotiated an older version.\n\n[spec schema]: https://github.com/modelcontextprotocol/modelcontextprotocol/blob/5bed7b30527019e34ccb0eb474636651424501f6/schema/draft/schema.ts#L225-L234",
"description": "Result type discriminator (SEP-2322). Required by the [spec schema]\nfor servers implementing protocol version `2026-07-28`, but optional\nhere because this type also models results from older protocol\nversions, which do not carry the field: `None` means absent on the\nwire, and per the spec \"the client MUST treat the absent field as\n`\"complete\"`\". Constructors default to `Some(ResultType::COMPLETE)`;\nthe server handler clears the field when responding to peers that\nnegotiated an older version.\n\n[spec schema]: https://github.com/modelcontextprotocol/modelcontextprotocol/blob/271ecc9accafdd9b83a3c869fa67c22953b2af80/schema/2026-07-28/schema.ts#L219-L235",
"anyOf": [
{
"$ref": "#/definitions/ResultType"