import type { ThinkingLevel } from "@caupulican/pi-agent-core";
import type { SessionEntry } from "@caupulican/pi-agent-core/node";
import type { RouteDecision } from "../autonomy/contracts.ts";
import type { ModelRouterIntent } from "./intent-classifier.ts";
export declare const MODEL_ROUTER_DECISION_CUSTOM_TYPE = "model_router_decision";
export type ModelRouterTierFitnessStatus = {
    status: "fit";
} | {
    status: "unprobed";
} | {
    status: "unfit";
    lane: string;
    succeeded: number;
    total: number;
};
export type ModelRouterFitnessStatuses = Partial<Record<"cheap" | "medium" | "expensive", ModelRouterTierFitnessStatus>>;
export type ModelRouterFailoverStatus = {
    exhausted: string[];
    lastNotice?: string;
    failureStats?: {
        total: number;
        unknown: number;
    };
};
export type ModelRouterStatusSettings = {
    enabled: boolean;
    fitnessGate?: boolean;
    cheapModel?: string;
    cheapThinking?: ThinkingLevel;
    mediumModel?: string;
    mediumThinking?: ThinkingLevel;
    expensiveModel?: string;
    expensiveThinking?: ThinkingLevel;
    learningModel?: string;
    executorModel?: string;
    executorThinking?: ThinkingLevel;
    judgeModel?: string;
    judgeThinking?: ThinkingLevel;
};
export type ModelRouterDecisionStatus = {
    route: RouteDecision;
    routedModel: string;
    outcome: "routed" | "escalated" | "failed";
    retryModel?: string;
    intent?: ModelRouterIntent;
};
export declare function getRecentModelRouterDecisions(entries: SessionEntry[], limit?: number): ModelRouterDecisionStatus[];
export declare function formatModelRouterStatus(settings: ModelRouterStatusSettings, lastDecision?: ModelRouterDecisionStatus, formatLabel?: (label: string) => string, recentDecisions?: ModelRouterDecisionStatus[], lastSkipReason?: string, latestIntent?: ModelRouterIntent, fitnessStatuses?: ModelRouterFitnessStatuses, failoverStatus?: ModelRouterFailoverStatus): string;
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