export type MemoryTarget = 'user' | 'agent';
export interface MemoryProvider {
    readonly name: string;
    isAvailable(): boolean;
    initialize(sessionId: string, opts?: Record<string, unknown>): Promise<void>;
    getToolSchemas(): Array<Record<string, unknown>>;
    systemPromptBlock(): string;
    prefetch(query: string, sessionId: string): Promise<string>;
    syncTurn(userContent: string, assistantContent: string, sessionId: string): Promise<void>;
    handleToolCall(toolName: string, args: Record<string, unknown>): Promise<string>;
    shutdown(): void;
}
declare const CHAR_LIMITS: Record<MemoryTarget, number>;
export declare function sanitizeContext(text: string): string;
export declare function buildMemoryContextBlock(rawContext: string): string;
export declare class MemoryManager {
    private providers;
    private toolToProvider;
    private hasExternal;
    private memoryDir;
    constructor(memoryDir: string);
    addProvider(provider: MemoryProvider): void;
    buildSystemPrompt(): string;
    prefetchAll(query: string, sessionId: string): Promise<string>;
    syncAll(userContent: string, assistantContent: string, sessionId: string): Promise<void>;
    getAllToolSchemas(): Array<Record<string, unknown>>;
    getAllToolNames(): Set<string>;
    hasTool(toolName: string): boolean;
    handleToolCall(toolName: string, args: Record<string, unknown>): Promise<string>;
    initializeAll(sessionId: string, opts?: Record<string, unknown>): Promise<void>;
    shutdownAll(): void;
    addMemory(target: MemoryTarget, content: string): boolean;
    replaceMemory(target: MemoryTarget, oldText: string, newContent: string): boolean;
    removeMemory(target: MemoryTarget, oldText: string): boolean;
    getMemoryForPrompt(target: MemoryTarget): string;
    private loadMemoryFile;
    private saveMemoryFile;
}
export { CHAR_LIMITS };
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