---
title: Elastic Agent Builder built-in agents reference
description: Reference of the pre-configured AI agents available in Elastic Agent Builder, including their specialized capabilities and assigned tools.
url: https://www.elastic.co/elastic/docs-builder/docs/3016/explore-analyze/ai-features/agent-builder/builtin-agents-reference
products:
  - Elastic Cloud Serverless
  - Elastic Observability
  - Elastic Security
  - Elasticsearch
  - Kibana
applies_to:
  - Elastic Cloud Serverless: Generally available
  - Elastic Stack: Generally available since 9.3, Preview in 9.2
---

# Elastic Agent Builder built-in agents reference
Built-in agents are pre-configured by Elastic with specific instructions and tools to handle common use cases.
<applies-switch>
  <applies-item title="{ stack: ga 9.4+, serverless: ga }" applies-to="Elastic Cloud Serverless: Generally available, Elastic Stack: Planned">
    Built-in agents cannot be modified or deleted. To customize one, you can clone it and [create a custom agent](/elastic/docs-builder/docs/3016/explore-analyze/ai-features/agent-builder/custom-agents#create-a-new-agent).The **Elastic AI Agent** is not a built-in agent in this version. It is a standard persisted default agent that is space-aware and editable. Refer to [Elastic AI Agent](#elastic-ai-agent) for details.
  </applies-item>
</applies-switch>

<applies-item title="{ stack: preview =9.2, ga 9.3 }" applies-to="Elastic Stack: Preview in 9.2">
  <tip>
    You cannot modify or delete built-in agents. To customize one, you can clone it and [create a custom agent](/elastic/docs-builder/docs/3016/explore-analyze/ai-features/agent-builder/custom-agents#create-a-new-agent).
  </tip>
</applies-item>


## Availability

The availability of specific agents depends on your solution view or serverless project type.
<applies-switch>
  <applies-item title="{ stack: ga 9.4+, serverless: ga }" applies-to="Elastic Cloud Serverless: Generally available, Elastic Stack: Planned">
    Built-in agents are space-agnostic: they are available across all [Kibana spaces](https://www.elastic.co/elastic/docs-builder/docs/3016/deploy-manage/manage-spaces). The default [Elastic AI Agent](#elastic-ai-agent) is an exception: it is created automatically per space and is only available in the space where it was created.
  </applies-item>

  <applies-item title="{ stack: preview =9.2, ga 9.3 }" applies-to="Elastic Stack: Preview in 9.2">
    Built-in agents are space-agnostic: they are available across all [Kibana spaces](https://www.elastic.co/elastic/docs-builder/docs/3016/deploy-manage/manage-spaces).
  </applies-item>
</applies-switch>

<note>
  Elastic Observability and Elastic Security users must opt-in to use Elastic Agent Builder. To learn more, refer to [Compare Agent Builder and AI Assistant > Switch between chat experiences](/elastic/docs-builder/docs/3016/explore-analyze/ai-features/ai-chat-experiences/ai-agent-or-ai-assistant#switch-between-chat-experiences).
</note>


## Elastic AI Agent

<applies-to>
  - Elastic Cloud Serverless: Generally available
  - Elastic Stack: Generally available since 9.3
  - Elastic Stack: Preview in 9.2
</applies-to>

<applies-switch>
  <applies-item title="{ stack: ga 9.4+, serverless: ga }" applies-to="Elastic Cloud Serverless: Generally available, Elastic Stack: Planned">
    The **Elastic AI Agent** is the default general-purpose agent for Elasticsearch. Unlike the other built-in agents, it is a standard persisted agent that is automatically created in each [Kibana space](https://www.elastic.co/elastic/docs-builder/docs/3016/deploy-manage/manage-spaces) when first accessed.Because the default agent is space-aware, you can customize it independently for each space. You can change its instructions, adjust which tools it has access to, or clone it as a starting point for a new agent.**Default assigned tools:**
    - All [**Platform core tools**](/elastic/docs-builder/docs/3016/explore-analyze/ai-features/agent-builder/tools/builtin-tools-reference#platform-core-tools)
  </applies-item>

  <applies-item title="{ stack: preview =9.2, ga 9.3 }" applies-to="Elastic Stack: Preview in 9.2">
    The **Elastic AI Agent** is the default general-purpose agent for Elasticsearch. It is designed to help with a wide range of tasks, from writing ES|QL queries to exploring your data indices.**Assigned tools:**
    - All [**Platform core tools**](/elastic/docs-builder/docs/3016/explore-analyze/ai-features/agent-builder/tools/builtin-tools-reference#platform-core-tools)
  </applies-item>
</applies-switch>


## Observability Agent

<applies-to>
  - Serverless Observability projects: Preview
  - Elastic Stack: Preview since 9.3
</applies-to>

A specialized agent for logs, metrics, and traces. It is designed to assist with infrastructure monitoring and application performance troubleshooting.
**Assigned tools:**
- All [**Observability tools**](/elastic/docs-builder/docs/3016/explore-analyze/ai-features/agent-builder/tools/builtin-tools-reference#observability-tools)
- A subset of [**Platform core tools**](/elastic/docs-builder/docs/3016/explore-analyze/ai-features/agent-builder/tools/builtin-tools-reference#platform-core-tools)


## Threat Hunting Agent

<applies-to>
  - Serverless Security projects: Preview
  - Elastic Stack: Preview since 9.3
</applies-to>

A specialized agent for security alert analysis tasks, including alert investigation and Elastic Security documentation. It helps analysts triage alerts and understand complex security events. For more information and example use-cases, refer to [Agent Builder for Elastic Security](https://www.elastic.co/elastic/docs-builder/docs/3016/solutions/security/ai/agent-builder/agent-builder).
**Assigned tools:**
- All [**Security tools**](/elastic/docs-builder/docs/3016/explore-analyze/ai-features/agent-builder/tools/builtin-tools-reference#security-tools)
- A subset of [**Platform core tools**](/elastic/docs-builder/docs/3016/explore-analyze/ai-features/agent-builder/tools/builtin-tools-reference#platform-core-tools)


## Related pages

- [Agents](https://www.elastic.co/elastic/docs-builder/docs/3016/explore-analyze/ai-features/agent-builder/agent-builder-agents)
- [Create a custom agent](/elastic/docs-builder/docs/3016/explore-analyze/ai-features/agent-builder/custom-agents#create-a-new-agent)
- [Built-in tools reference](https://www.elastic.co/elastic/docs-builder/docs/3016/explore-analyze/ai-features/agent-builder/tools/builtin-tools-reference)