> ## Documentation Index
> Fetch the complete documentation index at: https://docs.langchain.com/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="info-circle" 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="edit" 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="folders" 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 Playground" icon="test-pipe" href="/langsmith/prompt-engineering-concepts#playground" arrow="true">
    Test and experiment with prompts using custom endpoints and model configurations.
  </Card>

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

<Callout type="info" icon="feather">
  Use **[Polly](/langsmith/polly)** in the Playground to optimize prompts, generate tools, and create output schemas with AI-powered assistance.
</Callout>

<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>

***

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  <Callout icon="terminal-2">
    [Connect these docs](/use-these-docs) to Claude, VSCode, and more via MCP for real-time answers.
  </Callout>

  <Callout icon="edit">
    [Edit this page on GitHub](https://github.com/langchain-ai/docs/edit/main/src/langsmith/prompt-engineering.mdx) or [file an issue](https://github.com/langchain-ai/docs/issues/new/choose).
  </Callout>
</div>