/**
 * Performance timing utilities for RecourseOS evaluations.
 *
 * Used to measure latency and enforce SLA targets.
 */
/**
 * SLA targets for different operation types (in milliseconds).
 *
 * These are p95 targets - 95% of evaluations should complete within these times.
 */
export declare const SLA_TARGETS: {
    /** Single resource evaluation without network calls */
    readonly localEvaluation: 10;
    /** Single resource evaluation with AWS state lookup */
    readonly remoteEvaluation: 500;
    /** Full plan evaluation (up to 50 resources) */
    readonly planEvaluation: 2000;
    /** Shell command parsing and evaluation */
    readonly shellEvaluation: 5;
    /** MCP tool call evaluation */
    readonly mcpEvaluation: 10;
};
export type SLATarget = keyof typeof SLA_TARGETS;
/**
 * Timing metrics for an evaluation.
 */
export interface EvaluationTiming {
    /** Total wall-clock time in milliseconds */
    totalMs: number;
    /** Time spent in parsing/preparation */
    parseMs?: number;
    /** Time spent in blast radius analysis */
    analysisMs?: number;
    /** Time spent in policy evaluation */
    policyMs?: number;
    /** Time spent waiting for remote state lookups */
    remoteMs?: number;
    /** Whether the evaluation met its SLA target */
    metSla: boolean;
    /** The SLA target used for comparison */
    slaTarget: SLATarget;
    /** The target time in milliseconds */
    slaTargetMs: number;
}
/**
 * Timer for tracking evaluation performance.
 */
export declare class EvaluationTimer {
    private startTime;
    private phases;
    private slaTarget;
    constructor(slaTarget?: SLATarget);
    /**
     * Start timing a phase.
     */
    startPhase(name: string): void;
    /**
     * End timing a phase.
     */
    endPhase(name: string): number;
    /**
     * Get the duration of a completed phase.
     */
    getPhaseMs(name: string): number | undefined;
    /**
     * Set the SLA target for this evaluation.
     */
    setSlaTarget(target: SLATarget): void;
    /**
     * Complete timing and return metrics.
     */
    finish(): EvaluationTiming;
}
/**
 * Format timing metrics for human-readable output.
 */
export declare function formatTiming(timing: EvaluationTiming): string;
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