/**
 * ToolHandler — Executes eddie-brain tools without MCP transport
 *
 * Replicates the dispatch logic from mcp/server.ts but calls
 * KnowledgeGraph/TokenValidator/NamingValidator/HealthScorer directly.
 * Returns plain strings instead of MCP content objects.
 */
import type { KnowledgeGraph } from '../knowledge-graph/index.js';
import type { EddieTool } from './types.js';
export declare function setDesignSystemsMcpHandler(handler: (toolName: string, input: Record<string, unknown>) => Promise<string>): void;
/** Tool input/output description for Anthropic API tool definitions */
export interface ToolDefinition {
    name: string;
    description: string;
    input_schema: Record<string, unknown>;
}
/**
 * Execute an eddie-brain tool call and return the result as a string.
 */
export declare function executeToolCall(toolName: EddieTool, toolInput: Record<string, unknown>, knowledgeGraph: KnowledgeGraph, rootDir: string): Promise<string>;
/**
 * Build Anthropic API tool definitions for the specified tools.
 */
export declare function buildToolDefinitions(tools: EddieTool[]): ToolDefinition[];
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