> ## Documentation index
> Fetch the complete documentation index at: https://arize.com/llms.txt
> Ask it with GET https://arize.com/ask?q=<keywords or question>. Short keywords rank best.
> Use these 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">
</Card>

<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>