> ## Documentation Index
> Fetch the complete documentation index at: https://starkware-9575960b-agent-options.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Writing a simple AIR

<figure id="fig-tutorial-1">
  <img src="https://mintcdn.com/starkware-9575960b-agent-options/4HXKWaB2V6I5hK0g/learn/s-two/air-development/writing-a-simple-air/index-1.png?maxW=5204&auto=format&n=4HXKWaB2V6I5hK0g&q=85&s=68f6b6fa07fe2732d2ecd8eddb882afc" width="100%" width="5204" height="3596" data-path="learn/s-two/air-development/writing-a-simple-air/index-1.png" />

  <figcaption><center><span style="font-size: 0.9em">Figure 1: Proving lifecycle in S-two</span></center></figcaption>
</figure>

Welcome to the guide for writing AIRs in S-two!