import type { Tool, ToolCall } from "../types";
/**
 * Finds a tool by name and validates the tool call arguments against its schema.
 * @param tools Array of tool definitions
 * @param toolCall The tool call from the LLM
 * @returns The validated arguments
 * @throws Error if tool is not found or validation fails
 */
export declare function validateToolCall(tools: Tool[], toolCall: ToolCall): ToolCall["arguments"];
/**
 * Validates tool call arguments against the tool's schema (Zod or plain JSON
 * Schema). Applies LLM-quirk coercions (numeric strings, JSON-string
 * containers, null/invalid-empty-string-for-optional, null-for-default) before
 * declaring failure.
 *
 * @throws Error with a formatted message when validation cannot be reconciled.
 */
export declare function validateToolArguments(tool: Tool, toolCall: ToolCall): ToolCall["arguments"];