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fix: skip debug log for high-frequency tool-input-partial notifications #546

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Merged
antonpk1 merged 1 commit into from
Mar 10, 2026
+6 −1
Merged

fix: skip debug log for high-frequency tool-input-partial notifications #546

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7 changes: 6 additions & 1 deletion src/message-transport.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -7,6 +7,7 @@ import {
Transport,
TransportSendOptions,
} from "@modelcontextprotocol/sdk/shared/transport.js";
import { TOOL_INPUT_PARTIAL_METHOD } from "./spec.types";

/**
* JSON-RPC transport using `window.postMessage` for iframe↔parent communication.
Expand Down Expand Up @@ -123,7 +124,11 @@ export class PostMessageTransport implements Transport {
* @param options - Optional send options (currently unused)
*/
async send(message: JSONRPCMessage, options?: TransportSendOptions) {
console.debug("Sending message", message);
// Skip debug log for high-frequency streaming notifications — these
// can fire dozens of times per second and flood the console.
if ((message as { method?: string }).method !== TOOL_INPUT_PARTIAL_METHOD) {
console.debug("Sending message", message);
}
this.eventTarget.postMessage(message, "*");
}

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