/**
 * SingleStepEnforcer Entity
 *
 * Enforces single-step execution in Phase 4 to prevent
 * agents from making multiple changes in a single operation.
 *
 * @see TSK-FR-013〜017 - SingleStepEnforcer
 * @see REQ-FR-090〜092 - SingleStepEnforcer
 * @trace DES-MUSUBIX-FR-001 DES-ORCH-003
 */
import { type StepDefinition, type StepExecutionResult, type StepValidationResult, type SingleStepConfig } from '../value-objects/StepDefinition.js';
/**
 * Step executor function type
 */
export type StepExecutor = () => Promise<{
    success: boolean;
    affectedFiles: string[];
    linesAdded: number;
    linesRemoved: number;
    error?: string;
}>;
/**
 * Step validation context
 */
export interface StepValidationContext {
    affectedFiles: string[];
    linesChanged: number;
}
/**
 * SingleStepEnforcer Interface
 */
export interface ISingleStepEnforcer {
    /** Validate a step before execution */
    validateStep(step: StepDefinition, context: StepValidationContext): StepValidationResult;
    /** Enforce and execute a step */
    enforceStep(step: StepDefinition, executor: StepExecutor): Promise<StepExecutionResult>;
    /** Get the current step in progress */
    getCurrentStep(): StepDefinition | null;
    /** Get step execution history */
    getStepHistory(): readonly StepExecutionResult[];
    /** Reset enforcer state */
    reset(): void;
}
/**
 * SingleStepEnforcer Implementation
 *
 * Ensures agents execute only one step at a time, preventing
 * runaway operations and maintaining control.
 *
 * @example
 * ```typescript
 * const enforcer = createSingleStepEnforcer();
 *
 * const step = createStepDefinition({
 *   name: 'Modify index.ts',
 *   type: 'file-modify',
 *   target: 'src/index.ts',
 * });
 *
 * const result = await enforcer.enforceStep(step, async () => {
 *   // Perform the actual modification
 *   return { success: true, affectedFiles: ['src/index.ts'], linesAdded: 10, linesRemoved: 5 };
 * });
 * ```
 */
export declare class SingleStepEnforcer implements ISingleStepEnforcer {
    private readonly config;
    private currentStep;
    private history;
    constructor(config?: SingleStepConfig);
    /**
     * Validate a step before execution
     */
    validateStep(_step: StepDefinition, context: StepValidationContext): StepValidationResult;
    /**
     * Enforce and execute a step
     */
    enforceStep(step: StepDefinition, executor: StepExecutor): Promise<StepExecutionResult>;
    /**
     * Validate post-execution results (without concurrent step check)
     */
    private validatePostExecution;
    /**
     * Get the current step in progress
     */
    getCurrentStep(): StepDefinition | null;
    /**
     * Get step execution history
     */
    getStepHistory(): readonly StepExecutionResult[];
    /**
     * Reset enforcer state
     */
    reset(): void;
    private executeWithTimeout;
    private determineChangeType;
}
/**
 * Create a SingleStepEnforcer instance
 *
 * @param config - Optional configuration
 * @returns ISingleStepEnforcer instance
 */
export declare function createSingleStepEnforcer(config?: SingleStepConfig): ISingleStepEnforcer;
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