/**
 * Fault Injection — Chaos engineering for AI agents.
 * Wraps tool calls with configurable failure modes to test agent resilience.
 */
export type FaultType = 'error' | 'timeout' | 'slow' | 'corrupt';
export interface FaultConfig {
    type: FaultType;
    message?: string;
    delay_ms?: number;
    probability?: number;
}
export type FaultMap = Record<string, FaultConfig>;
/**
 * FaultInjector wraps tool execution with configurable failure injection.
 */
export declare class FaultInjector {
    private faults;
    constructor(faults?: FaultMap);
    /**
     * Check if a fault should be injected for a given tool.
     */
    shouldInject(toolName: string): boolean;
    /**
     * Get the fault config for a tool, or undefined if none.
     */
    getFault(toolName: string): FaultConfig | undefined;
    /**
     * Wrap a tool call. Returns the result or throws/delays based on fault config.
     */
    wrapToolCall<T>(toolName: string, execute: () => Promise<T>): Promise<T>;
    /**
     * Get a summary of configured faults for reporting.
     */
    summary(): string[];
}
export declare class FaultInjectionError extends Error {
    toolName: string;
    fault: FaultConfig;
    constructor(message: string, toolName: string, fault: FaultConfig);
}
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