# Modbender Skill Library MCP Langchain Chat Prompt Template > --- - Skill: `tomevault-io/modbender-skill-library-mcp-langchain-chat-prompt-template` (Agent Skill, multi-file: 2 files) - Install (CLI): `npx skillmds@latest add tomevault-io/modbender-skill-library-mcp-langchain-chat-prompt-template` - Raw SKILL.md: https://api.skillmd.com/api/skills/tomevault-io/modbender-skill-library-mcp-langchain-chat-prompt-template/raw - Safety review: pending (external: skill-scanner PASS, skillspector PASS) - Works with: Claude Code, Claude.ai, OpenAI Codex - Category: AI & ML - Author: tomevault-io (https://skillmd.com/u/tomevault-io) - Updated: 2026-09-17 - Page: https://skillmd.com/skills/tomevault-io/modbender-skill-library-mcp-langchain-chat-prompt-template --- --- name: langchain-chat-prompt-template description: Guide to using ChatPromptTemplate and MessagesPlaceholder in LangChain for conversational AI. Use when building chatbots, conversational interfaces, or AI assistants that need to maintain conversation history. --- # AI 编码 Prompt Skill ## 描述 This is handy because you don’t need to manually construct message objects — the template handles it... ## 类型 - 类型: AI 编码 - 评分: 60/100 ## Prompt ``` This is handy because you don’t need to manually construct message objects — the template handles it for you. When you’re working with chat-based models, you often want to include conversation history (or some sequence of messages). MessagesPlaceholder acts as a stand-in for a dynamic list of messages you’ll provide at runtime. Imagine we’re building a career coach bot that remembers previous questions and answers: from langchain_core.prompts import ChatPromptTemplate, MessagesPlaceholder from langchain_core.messages import HumanMessage, AIMessage chat_prompt = ChatPromptTemplate.fro ``` ## 来源信息 - 来源: N/A - 原始链接: https://mirascope.com/blog/langchain-prompt-template - 作者: N/A - 互动: 0 赞 ## 元数据 - 收集时间: 2026-01-30T20:48:50.625041 - Prompt 类型: AI 编码 - 质量分数: 60/100 --- *Skill generated by Clawdbot* --- > Source: [modbender/skill-library-mcp](https://github.com/modbender/skill-library-mcp) — distributed by [TomeVault](https://tomevault.io).