import { type DevFlowPathOptions } from './paths.js';
export interface RuntimeHttpCircuitState {
    endpoint: string;
    route: string;
    status: 'closed' | 'open' | 'half_open';
    failures: number;
    lastFailureAt?: number;
    openUntil?: number;
    probeStartedAt?: number;
    fallbackReason?: string;
    updatedAt: number;
}
export declare function getRuntimeHttpCircuitPath(options?: DevFlowPathOptions): string;
export declare function resolveCircuitEndpoint(endpoint: string): string;
export declare function acquireRuntimeHttpCircuit(endpoint: string, route: string, options?: DevFlowPathOptions & {
    now?: number;
    halfOpenProbeTimeoutMs?: number;
}): {
    allowed: boolean;
    probe: boolean;
    state: RuntimeHttpCircuitState;
};
export declare function registerRuntimeHttpFailure(endpoint: string, route: string, fallbackReason: string, options?: DevFlowPathOptions & {
    now?: number;
    openMs?: number;
}): {
    transitioned: boolean;
    state: {
        status: "open";
        failures: number;
        lastFailureAt: number;
        openUntil: number;
        probeStartedAt: undefined;
        fallbackReason: string;
        updatedAt: number;
        endpoint: string;
        route: string;
    };
};
export declare function registerRuntimeHttpSuccess(endpoint: string, route: string, options?: DevFlowPathOptions & {
    now?: number;
}): {
    transitioned: boolean;
    state: RuntimeHttpCircuitState;
};
export declare function listRuntimeHttpCircuits(options?: DevFlowPathOptions): RuntimeHttpCircuitState[];
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