import type { CapabilityRegistry, ToolDefinition, ModificationLogEntry } from './types.js';
export declare class CapabilityRegistryManager {
    private registry;
    private registryPath;
    private versionHistory;
    constructor(registryPath: string);
    /**
     * Load the registry from disk. Creates an empty one if not found.
     */
    load(): Promise<void>;
    /**
     * Save the registry to disk with updated manifest hash.
     */
    save(): Promise<void>;
    /**
     * Get the current registry state (readonly snapshot).
     */
    getRegistry(): CapabilityRegistry;
    /**
     * Add a new tool to the registry.
     * The tool must have status 'approved' before calling this.
     */
    addTool(tool: ToolDefinition, approvedBy: string, proposalId: string): void;
    /**
     * Deprecate a tool. It remains in the registry but is no longer active.
     */
    deprecateTool(toolId: string, deprecatedBy: string, _reason: string): void;
    /**
     * Rollback the registry to the previous version.
     * Returns true if rollback succeeded, false if no history available.
     */
    rollback(rolledBackBy: string): boolean;
    /**
     * Find a tool by ID across active and deprecated pools.
     */
    findTool(toolId: string): ToolDefinition | undefined;
    /**
     * List all active tools.
     */
    listActiveTools(): readonly ToolDefinition[];
    /**
     * List all deprecated tools.
     */
    listDeprecatedTools(): readonly ToolDefinition[];
    /**
     * Get the modification history.
     */
    getModificationHistory(): readonly ModificationLogEntry[];
    /**
     * Verify registry integrity by recomputing the manifest hash.
     */
    verifyIntegrity(): {
        valid: boolean;
        expected: string;
        actual: string;
    };
    private createEmptyRegistry;
    private pushHistory;
    private incrementVersion;
    private logModification;
    private computeManifestHash;
}