> ## Documentation Index
> Fetch the complete documentation index at: https://arizeai-433a7140.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Agent Spec

> Open Agent Spec (Agent Spec) is a portable language for defining agentic systems. It defines building blocks for standalone agents and structured agentic workflows as well as common ways of composing them into multi-agent systems.

<Card title="Agent Spec" href="https://oracle.github.io/agent-spec/" icon="globe" horizontal description="Agent Spec overview" />

<Columns cols={2}>
  <Card img="https://storage.googleapis.com/arize-phoenix-assets/assets/images/agentspec-greyscale-logo.svg" horizontal title="Agent Spec Tracing" href="/docs/phoenix/integrations/python/agentspec/agentspec-tracing" />
</Columns>