/**
 * Session context manager
 */
import type { OptimizationMetrics, QualityMetrics, Session, SessionCommand, SessionContext } from '../types/session.types.js';
export declare class SessionContextManager {
    private session;
    constructor(session: Session);
    /**
     * Add a command to session history
     */
    addCommand(command: string, args: string[], flags: Record<string, boolean | string | undefined>, outputs: Record<string, unknown>, success: boolean, durationMs: number, error?: string, tokensUsed?: number, optimizationMetrics?: OptimizationMetrics, qualityMetrics?: QualityMetrics): void;
    /**
     * Set the currently running command
     */
    setCurrentCommand(command: string): void;
    /**
     * Clear the currently running command
     */
    clearCurrentCommand(): void;
    /**
     * Update session context
     */
    updateContext(key: string, value: unknown): void;
    /**
     * Get context value
     */
    getContext(key: string): unknown;
    /**
     * Get all context
     */
    getAllContext(): SessionContext;
    /**
     * Merge context
     */
    mergeContext(context: SessionContext): void;
    /**
     * Clear specific context key
     */
    clearContext(key: string): void;
    /**
     * Clear all context
     */
    clearAllContext(): void;
    /**
     * Get last command
     */
    getLastCommand(): null | SessionCommand;
    /**
     * Get command history
     */
    getCommandHistory(): SessionCommand[];
    /**
     * Get commands by name
     */
    getCommandsByName(commandName: string): SessionCommand[];
    /**
     * Get successful commands
     */
    getSuccessfulCommands(): SessionCommand[];
    /**
     * Get failed commands
     */
    getFailedCommands(): SessionCommand[];
    /**
     * Get session statistics
     */
    getStatistics(): {
        average_duration_ms: number;
        failed_commands: number;
        successful_commands: number;
        total_commands: number;
        total_duration_ms: number;
    };
    /**
     * Update session status
     */
    setStatus(status: 'active' | 'completed' | 'failed' | 'paused'): void;
    /**
     * Get session status
     */
    getStatus(): 'active' | 'completed' | 'failed' | 'paused';
    /**
     * Get session
     */
    getSession(): Session;
    /**
     * Check if context has key
     */
    hasContext(key: string): boolean;
    /**
     * Get context keys
     */
    getContextKeys(): string[];
    /**
     * Validate context has required keys
     */
    validateContext(requiredKeys: string[]): void;
    /**
     * Get filtered context containing only specified keys
     * Useful for reducing token usage by only passing context that's actually referenced
     */
    private static buildNestedFromPath;
    private static deepMerge;
    getFilteredContext(keys: string[]): SessionContext;
    /**
     * Extract $CONTEXT_* variable references from a value (string, object, or array)
     * Returns a set of context keys that are referenced
     */
    static extractContextReferences(value: unknown): Set<string>;
}
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