/**
 * compare_vaults Tool
 *
 * Side-by-side comparison of multiple vaults with normalized metrics and rankings.
 * Supports comparing 2-20 vaults simultaneously across one or multiple chains.
 *
 * Use cases:
 * - Evaluate investment opportunities across similar vaults
 * - Identify best/worst performers in a category
 * - Cross-chain vault comparison (e.g., Ethereum vs Base vs Avalanche)
 * - Risk-adjusted return analysis
 * - Performance: ~300 tokens per vault
 *
 * Cache strategy:
 * - 15-minute TTL for comparison results
 * - Cache key: compare:{sorted_addresses}:{sorted_chainIds}
 * - Cache hit rate target: 70-80%
 * - Cache tags: [CacheTag.VAULT, CacheTag.ANALYTICS] for invalidation
 *
 * Multi-chain support:
 * - Accepts either single `chainId` (backward compatible) or `chainIds` array
 * - Single chainId is automatically converted to array internally
 * - GraphQL query uses `chainId_in` filter for cross-chain queries
 */
import { CallToolResult } from '@modelcontextprotocol/sdk/types.js';
import { CompareVaultsInput } from '../utils/validators.js';
import { ServiceContainer } from '../core/container.js';
/**
 * Create the executeCompareVaults function with DI container
 *
 * @param container - Service container with dependencies
 * @returns Configured tool executor function
 */
export declare function createExecuteCompareVaults(container: ServiceContainer): (input: CompareVaultsInput) => Promise<CallToolResult>;
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