workflow-node-start

name	workflow-node-start
description	Builds or updates frontend start-node data for workflow inputs.
allowed-tools	["execute_node_skill_script","update_current_graph"]

Workflow Start Node

Use type: start for the unique entry node of a workflow or loop subgraph.

Node Schema

build_node.data only contains business fields. Do not provide id, type, position, or status.

Field	Type	Required	Meaning	Notes
title	string	no	Display title	Defaults to 开始
description	string	no	Node description
inputs	array	no	Input variables	Must be empty
outputs	array	yes	Workflow input variables	Full ordered array
config	object	no	Start-node settings	Defaults are filled by the script

Each outputs item contains name: string, type: string, and optional description: string. config.outputKey names the primary output and config.enabled must remain true.

Default start node structure:

{
  "id": "start",
  "title": "开始节点",
  "type": "start",
  "description": "用户输入",
  "inputs": [],
  "outputs": [
    {
      "name": "input",
      "type": "String",
      "description": "用户输入"
    }
  ],
  "config": {
    "prompt": "用户输入会在这里进入工作流。",
    "model": "N/A",
    "temperature": 0,
    "maxTokens": 0,
     
     
     
     
     
  

Rules

• A main workflow has exactly one start node.
• If the current Graph already contains a start node, reuse it. Do not call build_node for another start node.
• A start node has no incoming edge.
• Connect it to the first executable node with add_edge.
• Do not configure model, selector, code, or loop fields.
• Start nodes do not support single-node execution.

Scripts

build_node

• Path: workflow-node-start/scripts/node.py
• Entry: build_node
• Description: build a complete new start node and generate id and type.
• Arguments: {"data": <Node Schema business fields>}
• Returns: {"node": <complete node>}

update_node

• Path: workflow-node-start/scripts/node.py
• Entry: update_node
• Description: find the current start node by ID and replace requested fields.
• Arguments: {"node_id": "existing-id", "changes": <changed fields>}
• Returns: {"node": <complete updated node>}

For updates, objects merge recursively, arrays replace the entire old array, scalars replace directly, and omitted fields stay unchanged. To modify one output, submit the complete new outputs array.