/**
 * grafana_investigate tool
 *
 * Multi-signal investigation triage: gathers metrics, logs, traces, and context
 * signals in parallel, then generates hypothesis suggestions with specific
 * tool+params for follow-up.
 *
 * Design: This is a "first step" accelerator — use it to quickly gather
 * evidence across all signal types, then follow up with individual tools
 * (grafana_query, grafana_query_logs, grafana_query_traces) for deep-dives.
 *
 * Follows the same resilient pattern as grafana_security_check:
 * Promise.allSettled for graceful degradation when signal sources are unavailable.
 */
import { GrafanaClientRegistry } from "../grafana-client-registry.js";
import type { AlertStore } from "../services/alert-webhook.js";
export declare function createInvestigateToolFactory(registry: GrafanaClientRegistry, store: AlertStore): (_ctx: unknown) => {
    name: string;
    label: string;
    description: string;
    parameters: {
        type: "object";
        properties: {
            focus: {
                type: string;
                description: string;
            };
            timeWindow: {
                type: string;
                enum: string[];
                description: string;
            };
            service: {
                type: string;
                description: string;
            };
        };
        required: string[];
    };
    execute(_toolCallId: string, params: Record<string, unknown>): Promise<{
        content: Array<{
            type: "text";
            text: string;
        }>;
        details: unknown;
    }>;
};