docs: add tip block for finding available models (#2501)

Co-authored-by: GitHub Action <[email protected]>

packages/web/src/content/docs/agents.mdx

@@ -542,6 +542,10 @@ For example, with OpenAI's reasoning models, you can control the reasoning effor
 
 These additional options are model and provider-specific. Check your provider's documentation for available parameters.
 
+:::tip
+Run `opencode models` to see a lit of the available models.
+:::
+
 ---
 
 ## Create agents