# MessagesPlaceholder

> Entity coverage from Web Pulse
> Last updated: 2026-06-13T12:19:59.146868+00:00
> 1 articles mentioning **MessagesPlaceholder**

- [LangChain Series #3: Prompts Explained — Prompt Templates, Chat Prompts, Dynamic Prompting…](https://wpnews.pro/news/langchain-series-3-prompts-explained-prompt-templates-chat-prompts-dynamic) — 2026-06-12