LangBot/src/langbot/templates/metadata/nodes/llm_call.yaml

# LLM Call Node Configuration
# This file defines the metadata for the LLM Call workflow node
# The corresponding Python implementation is in: pkg/workflow/nodes/llm_call.py

name: llm_call
label:
  en_US: LLM Call
  zh_Hans: LLM 调用
category: process
icon: Brain
color: '#8b5cf6'
description:
  en_US: Call a large language model to generate responses
  zh_Hans: 调用大语言模型生成响应

inputs:
  - name: input
    type: string
    required: false
    label:
      en_US: Input
      zh_Hans: 输入
    description:
      en_US: Input text to send to the model
      zh_Hans: 发送到模型的输入文本
  - name: context
    type: object
    required: false
    label:
      en_US: Context
      zh_Hans: 上下文
    description:
      en_US: Additional context data
      zh_Hans: 额外的上下文数据

outputs:
  - name: response
    type: string
    label:
      en_US: Response
      zh_Hans: 响应
    description:
      en_US: Model response text
      zh_Hans: 模型响应文本
  - name: usage
    type: object
    label:
      en_US: Usage
      zh_Hans: 使用量
    description:
      en_US: Token usage information
      zh_Hans: Token 使用量信息
  - name: parsed
    type: object
    label:
      en_US: Parsed
      zh_Hans: 解析结果
    description:
      en_US: Parsed output (if output format is JSON)
      zh_Hans: 解析后的输出（如果输出格式为 JSON）

config:
  - name: model_config
    type: model-fallback-selector
    required: true
    default:
      primary: ''
      fallbacks: []
    label:
      en_US: Model Configuration
      zh_Hans: 模型配置
    description:
      en_US: Configure the primary model and optional fallback models
      zh_Hans: 配置主模型和可选的备用模型

  - name: prompt
    label:
      en_US: Prompt
      zh_Hans: 提示词
    description:
      en_US: Unless you understand the message structure, please only use a single system prompt
      zh_Hans: 除非您了解消息结构，否则请只使用 system 单提示词
    type: prompt-editor
    required: true
    default:
      - role: system
        content: "You are a helpful assistant."

  - name: max_round
    type: integer
    required: false
    default: 10
    label:
      en_US: Max Round
      zh_Hans: 最大回合数
    description:
      en_US: The maximum number of previous messages that the agent can remember
      zh_Hans: 最大前文消息回合数

  - name: knowledge_bases
    type: knowledge-base-multi-selector
    required: false
    default: []
    label:
      en_US: Knowledge Bases
      zh_Hans: 知识库
    description:
      en_US: Configure the knowledge bases to use for the agent, if not selected, the agent will directly use the LLM to reply
      zh_Hans: 配置用于提升回复质量的知识库，若不选择，则直接使用大模型回复

  - name: rerank_model
    type: rerank-model-selector
    required: false
    default: ''
    label:
      en_US: Rerank Model
      zh_Hans: 重排序模型
    description:
      en_US: Optional rerank model to improve retrieval quality by re-scoring retrieved chunks
      zh_Hans: 可选的重排序模型，通过重新评分检索结果来提升检索质量

  - name: rerank_top_k
    type: integer
    required: false
    default: 5
    label:
      en_US: Rerank Top K
      zh_Hans: 重排序保留数量
    description:
      en_US: Number of top results to keep after reranking
      zh_Hans: 重排序后保留的最相关结果数量

  - name: temperature
    type: number
    default: 0.7
    label:
      en_US: Temperature
      zh_Hans: 温度
    description:
      en_US: Controls randomness in responses
      zh_Hans: 控制响应的随机性

  - name: max_tokens
    type: integer
    default: 0
    label:
      en_US: Max Tokens
      zh_Hans: 最大令牌数
    description:
      en_US: Maximum number of tokens to generate
      zh_Hans: 生成的最大令牌数

  - name: output_format
    type: select
    default: text
    options:
      - text
      - json
      - markdown
    label:
      en_US: Output Format
      zh_Hans: 输出格式
    description:
      en_US: Expected format of the model output
      zh_Hans: 模型输出的预期格式

  - name: json_schema
    type: textarea
    default: ""
    label:
      en_US: JSON Schema
      zh_Hans: JSON Schema
    description:
      en_US: JSON schema for structured output validation
      zh_Hans: 用于结构化输出验证的 JSON Schema

  - name: exception_handling
    type: select
    required: true
    default: show-hint
    options:
      - name: show-error
        label:
          en_US: Show Full Error
          zh_Hans: 显示完整报错信息
      - name: show-hint
        label:
          en_US: Show Failure Hint
          zh_Hans: 仅文字提示
      - name: hide
        label:
          en_US: Hide All
          zh_Hans: 不显示任何异常信息
    label:
      en_US: Exception Handling Strategy
      zh_Hans: 异常处理策略
    description:
      en_US: Controls how error messages are displayed to the user when an AI request fails
      zh_Hans: 控制 AI 请求失败时向用户展示错误信息的方式

  - name: failure_hint
    type: string
    required: false
    default: 'Request failed.'
    label:
      en_US: Failure Hint Text
      zh_Hans: 失败提示文本
    description:
      en_US: The text to display when a request fails. Only effective when Exception Handling Strategy is set to "Show Failure Hint"
      zh_Hans: 请求失败时显示的提示文本，仅在异常处理策略设置为"仅文字提示"时生效

  - name: remove_think
    type: boolean
    default: false
    label:
      en_US: Remove CoT
      zh_Hans: 删除思维链
    description:
      en_US: 'If enabled, the model thinking content in the response will be automatically removed. Note: When using streaming response, removing CoT may cause the first token to wait for a long time.'
      zh_Hans: '如果启用，将自动删除大模型回复中的模型思考内容。注意：当您使用流式响应时，删除思维链可能会导致首个 Token 的等待时间过长'

  - name: track_function_calls
    type: boolean
    default: false
    label:
      en_US: Track Function Calls
      zh_Hans: 跟踪函数调用
    description:
      en_US: If enabled, the Agent will output a hint to the user each time a tool is called
      zh_Hans: 启用后，Agent 每次调用工具时都会输出一个提示给用户