/**
 * Custom HTTP Transport for MCP over Azure Web Service.
 * Uses direct JSON responses (not SSE streaming) for Azure orchestrator compatibility.
 */
import type { Server } from '@modelcontextprotocol/sdk/server/index.js';
import type { Transport } from '@modelcontextprotocol/sdk/shared/transport.js';
import type { JSONRPCMessage } from '@modelcontextprotocol/sdk/types.js';
import type { Express } from 'express';
import type { XppServerContext } from '../types/context.js';
/**
 * MCP methods this server does NOT implement: they always come back
 * "Method not found", so logging them is noise.
 *
 * Keep this list to methods with NO registered handler — tests/server/silentProbes.test.ts
 * pins that invariant against the SDK's real handler registry. Four of the five
 * entries it used to hold were served, not probed: `resources/list`,
 * `resources/templates/list` and `prompts/list` have had handlers since
 * src/resources/index.ts and src/prompts/codeReview.ts registered them, and
 * `logging/setLevel` is auto-registered by the SDK because the capabilities
 * block declares `logging: {}` — a fact no grep for a request schema in this
 * repo can find, which is how it stayed hidden.
 *
 * What the mistake cost was visibility, not correctness: silencing them
 * discarded the only signal that says whether any client actually reads what we
 * volunteer — which is exactly the evidence docs/BACKLOG.md's context-pipeline
 * Phase 3b and VSIX entries are waiting on before either is worth building.
 */
export declare const SILENT_PROBES: Set<string>;
export declare class CustomHttpTransport implements Transport {
    private server;
    private app;
    private context;
    private pendingRequests;
    onmessage?: (message: JSONRPCMessage) => void;
    onerror?: (error: Error) => void;
    onclose?: () => void;
    constructor(server: Server, app: Express, context: XppServerContext);
    /**
     * Connects MCP server to this transport
     * CRITICAL: Must be called for proper protocol lifecycle and completion signaling
     */
    connectServer(): Promise<void>;
    start(): Promise<void>;
    close(): Promise<void>;
    send(message: JSONRPCMessage): Promise<void>;
    private setupRoutes;
}
export declare function createStreamableHttpTransport(server: Server, app: Express, context: XppServerContext): CustomHttpTransport;
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