diff --git a/src/presets/classic.ts b/src/presets/classic.ts
index d970a41..acfa1d5 100644
--- a/src/presets/classic.ts
+++ b/src/presets/classic.ts
@@ -11,8 +11,13 @@ type PortId = string
 
 /**
  * The socket class
+ * @priority 7
  */
 export class Socket {
+  /**
+   * @constructor
+   * @param name Name of the socket
+   */
   constructor(public name: string) {
 
   }
@@ -22,9 +27,21 @@ export class Socket {
  * General port class
  */
 export class Port<S extends Socket> {
+  /**
+   * Port id, unique string generated by `getUID` function
+   */
   id: PortId
+  /**
+   * Port index, used for sorting ports. Default is `0`
+   */
   index?: number
 
+  /**
+   * @constructor
+   * @param socket Socket instance
+   * @param label Label of the port
+   * @param multipleConnections Whether the output port can have multiple connections
+   */
   constructor(public socket: S, public label?: string, public multipleConnections?: boolean) {
     this.id = getUID()
   }
@@ -32,16 +49,40 @@ export class Port<S extends Socket> {
 
 /**
  * The input port class
+ * @priority 6
  */
 export class Input<S extends Socket> extends Port<S> {
+  /**
+   * Control instance
+   */
   control: Control | null = null
+  /**
+   * Whether the control is visible. Can be managed dynamically by extensions. Default is `true`
+   */
   showControl = true
 
+  /**
+   * @constructor
+   * @param socket Socket instance
+   * @param label Label of the input port
+   * @param multipleConnections Whether the output port can have multiple connections. Default is `false`
+   */
+  constructor(public socket: S, public label?: string, public multipleConnections?: boolean) {
+    super(socket, label, multipleConnections)
+  }
+
+  /**
+   * Add control to the input port
+   * @param control Control instance
+   */
   addControl(control: Control) {
     if (this.control) throw new Error('control already added for this input')
     this.control = control
   }
 
+  /**
+   * Remove control from the input port
+   */
   removeControl() {
     this.control = null
   }
@@ -49,8 +90,15 @@ export class Input<S extends Socket> extends Port<S> {
 
 /**
  * The output port class
+ * @priority 5
  */
 export class Output<S extends Socket> extends Port<S> {
+  /**
+   * @constructor
+   * @param socket Socket instance
+   * @param label Label of the output port
+   * @param multipleConnections Whether the output port can have multiple connections. Default is `true`
+   */
   constructor(socket: S, label?: string, multipleConnections?: boolean) {
     super(socket, label, multipleConnections !== false)
   }
@@ -58,9 +106,16 @@ export class Output<S extends Socket> extends Port<S> {
 
 /**
  * General control class
+ * @priority 5
  */
 export class Control {
+  /**
+   * Control id, unique string generated by `getUID` function
+   */
   id: string
+  /**
+   * Control index, used for sorting controls. Default is `0`
+   */
   index?: number
 
   constructor() {
@@ -68,9 +123,15 @@ export class Control {
   }
 }
 
+/**
+ * Input control options
+ */
 type InputControlOptions<N> = {
+  /** Whether the control is readonly. Default is `false` */
   readonly?: boolean,
+  /** Initial value of the control */
   initial?: N,
+  /** Callback function that is called when the control value changes */
   change?: (value: N) => void
 }
 /**
@@ -81,6 +142,11 @@ export class InputControl<T extends 'text' | 'number', N = T extends 'text' ? st
   value?: N
   readonly: boolean
 
+  /**
+   * @constructor
+   * @param type Type of the control: `text` or `number`
+   * @param options Control options
+   */
   constructor(public type: T, public options?: InputControlOptions<N>) {
     super()
     this.id = getUID()
@@ -89,6 +155,10 @@ export class InputControl<T extends 'text' | 'number', N = T extends 'text' ? st
     if (typeof options?.initial !== 'undefined') this.value = options.initial
   }
 
+  /**
+   * Set control value
+   * @param value Value to set
+   */
   setValue(value?: N) {
     this.value = value
     if (this.options?.change) this.options.change(value)
@@ -97,9 +167,7 @@ export class InputControl<T extends 'text' | 'number', N = T extends 'text' ? st
 
 /**
  * The node class
- * @typeParam Inputs - The inputs type
- * @typeParam Outputs - The outputs type
- * @typeParam Controls - The controls type
+ * @priority 10
  * @example new Node('math')
  */
 export class Node<
@@ -107,10 +175,25 @@ export class Node<
   Outputs extends { [key in string]?: Socket } = { [key in string]?: Socket },
   Controls extends { [key in string]?: Control } = { [key in string]?: Control }
 > implements NodeBase {
+  /**
+   * Node id, unique string generated by `getUID` function
+   */
   id: NodeBase['id']
+  /**
+   * Node inputs
+   */
   inputs: { [key in keyof Inputs]?: Input<Exclude<Inputs[key], undefined>> } = {}
+  /**
+   * Node outputs
+   */
   outputs: { [key in keyof Outputs]?: Output<Exclude<Outputs[key], undefined>> } = {}
+  /**
+   * Node controls
+   */
   controls: Controls = {} as Controls
+  /**
+   * Whether the node is selected. Default is `false`
+   */
   selected?: boolean
 
   constructor(public label: string) {
@@ -160,14 +243,34 @@ export class Node<
   }
 }
 
+/**
+ * The connection class
+ * @priority 9
+ */
 export class Connection<
   Source extends Node,
   Target extends Node
 > implements ConnectionBase {
+  /**
+   * Connection id, unique string generated by `getUID` function
+   */
   id: ConnectionBase['id']
+  /**
+   * Source node id
+   */
   source: NodeBase['id']
+  /**
+   * Target node id
+   */
   target: NodeBase['id']
 
+  /**
+   * @constructor
+   * @param source Source node instance
+   * @param sourceOutput Source node output key
+   * @param target Target node instance
+   * @param targetInput Target node input key
+   */
   constructor(
     source: Source,
     public sourceOutput: keyof Source['outputs'],