82 lines
1.9 KiB
Text
82 lines
1.9 KiB
Text
Check the multi-round-trip request pattern under protocol version
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2026-07-28. The server's tool handler returns an
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InputRequiredResult on the first call, requesting elicitation input from the
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client and providing an opaque RequestState token. The client fulfills the
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input request and retries the tool call with the responses and the echoed
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RequestState; the handler then returns the final result.
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-- tools --
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confirmThenGreet
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-- client --
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{
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"jsonrpc": "2.0",
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"id": 1,
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"method": "tools/call",
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"params": {
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"_meta": {
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"io.modelcontextprotocol/protocolVersion": "2026-07-28",
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"io.modelcontextprotocol/clientInfo": { "name": "ExampleClient", "version": "1.0.0" },
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"io.modelcontextprotocol/clientCapabilities": { "elicitation": {} }
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},
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"name": "confirmThenGreet",
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"arguments": {}
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}
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}
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{
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"jsonrpc": "2.0",
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"id": 2,
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"method": "tools/call",
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"params": {
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"_meta": {
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"io.modelcontextprotocol/protocolVersion": "2026-07-28",
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"io.modelcontextprotocol/clientInfo": { "name": "ExampleClient", "version": "1.0.0" },
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"io.modelcontextprotocol/clientCapabilities": { "elicitation": {} }
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},
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"name": "confirmThenGreet",
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"arguments": {},
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"requestState": "step=1",
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"inputResponses": {
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"who": { "action": "accept", "content": { "name": "MCP Go" } }
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}
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}
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}
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-- server --
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{
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"jsonrpc": "2.0",
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"id": 1,
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"result": {
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"content": null,
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"requestState": "step=1",
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"resultType": "input_required",
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"inputRequests": {
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"who": {
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"method": "elicitation/create",
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"params": {
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"mode": "form",
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"message": "What is your name?",
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"requestedSchema": {
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"type": "object",
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"properties": {
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"name": {
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"type": "string"
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}
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}
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}
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}
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}
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}
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}
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}
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{
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"jsonrpc": "2.0",
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"id": 2,
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"result": {
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"content": [
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{
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"type": "text",
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"text": "hello MCP Go"
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}
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],
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"resultType": "complete"
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}
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}
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