## Description
<!-- Please remember to add your design buddy onto the PR for review, if
it contains any UI changes! -->
This PR sets up the initial plumbing for supporting the Codex CLI with
multi-harness. It follows the existing pattern for Claude Code and
Gemini, implementing the `ThirdPartyHarness` trait for codex.
Notable decisions:
- We run the CLI with `--dangerously-bypass-approvals-and-sandbox`
([docs](https://developers.openai.com/codex/agent-approvals-security#run-without-approval-prompts))
- We provide the system prompt by writing to `AGENTS.override.md`
([docs](https://developers.openai.com/codex/guides/agents-md))—codex
reads this first and recommends it for temporary instructions. It
doesn't really matter yet which we use since these are running in a
cloud agent context where we control the FS.
- Codex, like Gemini, unfortunately doesn't support file input or
redirecting stdin. We reuse the `$(cat prompt_file)` approach here for
now.
## Testing
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How did you test this change? What automated tests did you add? If you
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Tested E2E in downstream PR,
https://github.com/warpdotdev/warp/pull/9376
Also confirmed that it picks up the system prompt instructions:
<img width="1353" height="912" alt="image"
src="https://github.com/user-attachments/assets/6665db5a-fbf3-427f-b95d-2e5c627f3865"
/>
## Server API dependencies
<!-- You may remove this section if your PR does not have any server
dependencies. -->
Relies on the support for Codex added to the server in
https://github.com/warpdotdev/warp-server/pull/10740
## Agent Mode
- [x] Warp Agent Mode - This PR was created via Warp's AI Agent Mode
---------
Co-authored-by: Oz <oz-agent@warp.dev>
## Description
Enable SSH remote server on stable!
This also setup the server experiment rollout so we could have a
percentage of users with the setting default on and the rest with
default off
Adds a per-profile context window control for the agent's base model. Users
can override the model's default context window from the AI
settings page.
Co-Authored-By: Oz <oz-agent@warp.dev>
