/**
 * MCP Client Foundation — official SDK adapter (2.13.0).
 *
 * This is the ONLY module that imports the MCP TypeScript SDK runtime and
 * transports. It owns a single stdio session: spawn, protocol negotiation,
 * tool discovery, tool invocation, cancellation/timeout, stderr isolation, and
 * clean shutdown. Everything crossing out of this file is Jensen-shaped (see
 * mcp-types.ts).
 *
 * Negotiation policy: `versionNegotiation: { mode: "auto" }` — probe with the
 * modern `server/discover` advertisement first, then fall back to the legacy
 * `initialize` handshake for 2025-era servers. The negotiated era/version are
 * captured and surfaced as observable Jensen session metadata; Jensen domains
 * never branch on them.
 */
import type { McpServerDefinition, McpServerSession, McpToolCall, McpToolDescriptor, McpToolResult } from "./mcp-types.js";
export interface McpSdkAdapterOptions {
    sessionId: string;
    serverId: string;
    now?: () => number;
}
export declare class McpSdkAdapter {
    private readonly sessionId;
    private readonly serverId;
    private readonly now;
    private definition?;
    private client?;
    private state;
    private failure?;
    private connectedAtMs?;
    private disconnectedAtMs?;
    private pid?;
    private protocolVersion?;
    private protocolEra?;
    private identity?;
    private capabilities?;
    private instructions?;
    private toolListChanged;
    private stderrPending;
    private stderrLines;
    constructor(options: McpSdkAdapterOptions);
    get isConnected(): boolean;
    connect(definition: McpServerDefinition): Promise<void>;
    disconnect(): Promise<void>;
    listTools(): Promise<McpToolDescriptor[]>;
    callTool(call: McpToolCall): Promise<McpToolResult>;
    snapshot(): McpServerSession;
    processAlive(): boolean;
    private toToolResult;
    private resultStatusForCode;
    private assertConnected;
    private onToolsChanged;
    private onTransportClosed;
    private forceCleanup;
    private captureStderr;
}
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