/**
* TonMCP Error Handling
* Consistent error format for all tools
*/
export function createError(code, message, details) {
return {
error: true,
code,
message,
...(details && { details }),
};
}
export function isError(result) {
return (typeof result === 'object' &&
result !== null &&
'error' in result &&
result.error === true);
}
/**
* Map common Node.js error codes to TonMCP error codes
*/
export function mapNodeError(err, path) {
const pathInfo = path ? `: ${path}` : '';
switch (err.code) {
case 'ENOENT':
return createError('FILE_NOT_FOUND', `File or directory not found${pathInfo}`);
case 'EACCES':
case 'EPERM':
return createError('PERMISSION_DENIED', `Permission denied${pathInfo}`);
case 'ENOTDIR':
return createError('NOT_A_DIRECTORY', `Not a directory${pathInfo}`);
case 'EISDIR':
return createError('NOT_A_FILE', `Is a directory${pathInfo}`);
case 'EEXIST':
return createError('ALREADY_EXISTS', `Already exists${pathInfo}`);
case 'ETIMEDOUT':
return createError('TIMEOUT', `Operation timed out${pathInfo}`);
default:
return createError('UNKNOWN_ERROR', err.message || `Unknown error${pathInfo}`, {
originalCode: err.code,
});
}
}
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