> ## Documentation Index
> Fetch the complete documentation index at: https://langchain-5e9cc07a-preview-javaex-1765204202-a1f8093.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Prompt engineering

The following sections help you create, manage, and optimize your prompts:

<Columns cols={3}>
  <Card title="Review core concepts" icon="circle-info" href="/langsmith/prompt-engineering-concepts" arrow="true">
    Read definitions and key terminology for prompt engineering in LangSmith.
  </Card>

  <Card title="Create and update prompts" icon="pen-to-square" href="/langsmith/create-a-prompt" arrow="true">
    Build prompts via the UI or SDK, configure settings, use tools, add multimodal inputs, and connect model providers.
  </Card>

  <Card title="Manage prompts" icon="tags" href="/langsmith/manage-prompts" arrow="true">
    Organize with tags, commit changes, trigger webhooks, and share through the public prompt hub.
  </Card>

  <Card title="Explore the prompt hub" icon="folder-tree" href="/langsmith/manage-prompts#public-prompt-hub" arrow="true">
    Browse and manage prompt tags and discover community prompts from the LangChain Hub.
  </Card>

  <Card title="Open the prompt playground" icon="vial" href="/langsmith/prompt-engineering-concepts#prompt-playground" arrow="true">
    Test and experiment with prompts using custom endpoints and model configurations.
  </Card>

  <Card title="Follow tutorials" icon="book-open" href="/langsmith/optimize-classifier" arrow="true">
    Learn step-by-step techniques, like optimizing classifiers and advanced prompt engineering.
  </Card>
</Columns>

<Note>
  To set up a LangSmith instance, visit the [Platform setup section](/langsmith/platform-setup) to choose between cloud, hybrid, or self-hosted. All options include observability, evaluation, prompt engineering, and deployment.
</Note>

***

<Callout icon="pen-to-square" iconType="regular">
  [Edit the source of this page on GitHub.](https://github.com/langchain-ai/docs/edit/main/src/langsmith/prompt-engineering.mdx)
</Callout>

<Tip icon="terminal" iconType="regular">
  [Connect these docs programmatically](/use-these-docs) to Claude, VSCode, and more via MCP for real-time answers.
</Tip>