## Description
Adds a FAQ entry for a common question about whether users can access
other models or subscriptions in Warp's agent.
The answer clarifies that Warp's built-in agent harness runs server-side
and is not open in this repo, so a personal subscription cannot be used
for Codex model access there. It also points users toward planned ACP
support for connecting Codex directly while using their own
subscription.
## Testing
Documentation-only change; not run.
## Server API dependencies
None.
## Agent Mode
- [x] Warp Agent Mode - This PR was created via Warp's AI Agent Mode
## Changelog Entries for Stable
Co-Authored-By: Oz <oz-agent@warp.dev>
