/**
 * Tool Schema Validator for LLM Provider Compatibility
 *
 * Validates tool schemas at runtime to catch issues that would cause
 * failures with strict providers like Google Gemini.
 *
 * Google Gemini Requirements:
 *   1. enum values must be strings (not numbers)
 *   2. enum is only allowed for STRING type parameters
 */
export interface ValidationIssue {
    tool: string;
    property: string;
    issue: string;
    severity: 'error' | 'warning';
}
/**
 * Validate a single tool's schema for provider compatibility
 */
export declare function validateToolSchema(tool: any): ValidationIssue[];
/**
 * Validate all tools and return issues
 */
export declare function validateTools(tools: any[]): ValidationIssue[];
/**
 * Validate tools and log any issues found
 * Returns true if validation passes (no errors), false otherwise
 */
export declare function validateAndLogTools(tools: any[], context?: string): boolean;
/**
 * Fix common schema issues automatically
 * Returns a new array of tools with fixes applied
 */
export declare function autoFixToolSchemas(tools: any[]): any[];
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