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typescript-sdk/examples/mrtr/README.md
Felix Weinberger 1823aae891
 Implement MCP 2026-07-28 (#2286) 
Co-authored-by: Matt <77928207+mattzcarey@users.noreply.github.com>
Co-authored-by: Konstantin Konstantinov <KKonstantinov@users.noreply.github.com>
Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
2026-06-26 14:01:10 +01:00

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mrtr (multi-round-trip requests)

A write-once deploy tool that requests client input by returning inputRequired(...) instead of pushing a server→client request (protocol revision 2026-07-28). State between rounds is carried in requestState, which the example HMAC-protects and verifies via the ServerOptions.requestState.verify hook (a wire-level -32602 on tamper).

The client drives both the default auto-fulfilment mode (your existing elicitation/create handler is dispatched for you and callTool() returns a plain CallToolResult) and manual mode (autoFulfill: false + allowInputRequired: true).

pnpm tsx examples/mrtr/client.ts