/**
 * spec_kit.update_ticket tool
 *
 * Updates an existing ticket in the configured backlog provider.
 * Supports partial updates (only specified fields), add/remove label operations,
 * state changes, and graceful error handling for not-found cases.
 *
 * @example
 * ```typescript
 * import { createUpdateTicketTool } from './update-ticket.js';
 *
 * const tool = createUpdateTicketTool(config, (name) => registry.getProvider(name));
 *
 * // Execute via MCP
 * const result = await tool.execute({ ref: '#123', title: 'New title' });
 * ```
 */
import type { AgencyTool } from '@generacy-ai/agency';
import type { BacklogProvider } from '../providers/types.js';
import type { SpecKitConfig } from '../config.js';
/**
 * Create the spec_kit.update_ticket tool.
 *
 * This tool updates an existing ticket in the configured backlog system.
 * It auto-detects the provider from the reference format when possible,
 * falling back to the configured default provider.
 *
 * @param config - SpecKit plugin configuration
 * @param getProvider - Factory function to get the appropriate provider
 * @returns AgencyTool instance
 *
 * @example
 * ```typescript
 * const registry = new ProviderRegistry(config);
 * const tool = createUpdateTicketTool(config, (name) => registry.getProvider(name));
 *
 * // Update a ticket title
 * const result = await tool.execute({ ref: '#123', title: 'New title' });
 *
 * // Add and remove labels
 * const result = await tool.execute({
 *   ref: '#123',
 *   add_labels: ['priority:high'],
 *   remove_labels: ['needs-triage'],
 * });
 * ```
 */
export declare function createUpdateTicketTool(config: SpecKitConfig, getProvider: (name?: string) => BacklogProvider): AgencyTool;
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