[markstuart-oai]

Summary

The AI SDK UI demo let any visitor create provider conversations and run models. The demo now requires AI_SDK_UI_DEMO_ACCESS_TOKEN before provider work. It also checks that each conversation belongs to the requesting browser. It rejects requests from other browser origins, including when the browser has cached the demo credentials.

The demo limits conversation creation and model runs per process. It deletes expired provider conversations once their active work ends and retries failed deletions. Both chat views use the same limits and ownership checks. The README explains how to set the token and open the demo.

Please review the access checks and provider cleanup.

Test plan

• Passed 27 focused tests for access, ownership, streaming, and limits.
• Checked sign-in and both chat views in a local browser with a stub provider. A request from another origin reached no provider endpoint.
• Passed the full repository verification with both example patches applied.

Checks

• Added regression tests and updated the example README.
• Ran .agents/skills/code-change-verification/scripts/run.sh.

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Latest commit: fb34d86

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[chatgpt-codex-connector]

Codex Review Summary

This comment shows the latest Codex review activity on this pull request.

Review	Status	Commit	Review trigger
📝 Code Review	✅ Completed 2026-11-05T18:45:57.938080Z	fb34d86	PR opened
🔒 Security Review	✅ Completed 2026-11-05T18:46:01.612626Z	fb34d86	PR opened

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[jbeckwith-oai]

Approved at fb34d86. Reviewed all ten changed files, route/conversion code, provider session cleanup and stream adapters. Authentication gates provider work at the proxy and handlers, ownership remains enforced, synchronous quota reservations cover concurrent admission, and expiry cleanup waits for active reads/runs while retaining failed deletion slots. Tests cover access, quota, expiry and cleanup boundaries.

Coordinator and independent static review found no actionable issues; existing feedback checked. Hosted CI remains pending. No candidate code, tests, builds or CI reruns executed.