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fix(proxy): properly forward root requests and client metadata (#865)

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This commit is contained in:
Yury Semikhatsky
2025-08-12 01:17:45 -07:00
committed by GitHub
parent ab0ecc4075
commit 1fb2878271
5 changed files with 106 additions and 55 deletions
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6
src/mcp/proxyBackend.ts
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@@ -29,7 +29,7 @@ type NonEmptyArray<T> = [T, ...T[]];
export type ClientFactory = {
name: string;
description: string;
create(): Promise<Client>;
create(server: Server): Promise<Client>;
};
export type ClientFactoryList = NonEmptyArray<ClientFactory>;
@@ -42,6 +42,7 @@ export class ProxyBackend implements ServerBackend {
private _currentClient: Client | undefined;
private _contextSwitchTool: Tool<any>;
private _tools: ToolSchema<any>[] = [];
private _server: Server | undefined;
constructor(clientFactories: ClientFactoryList) {
this._clientFactories = clientFactories;
@@ -49,6 +50,7 @@ export class ProxyBackend implements ServerBackend {
}
async initialize(server: Server): Promise<void> {
this._server = server;
await this._setCurrentClient(this._clientFactories[0]);
}
@@ -118,7 +120,7 @@ export class ProxyBackend implements ServerBackend {
private async _setCurrentClient(factory: ClientFactory) {
await this._currentClient?.close();
this._currentClient = await factory.create();
this._currentClient = await factory.create(this._server!);
const tools = await this._currentClient.listTools();
this._tools = tools.tools.map(tool => ({
name: tool.name,