Prompt: Architecture Review

Use this before finalizing an architecture.

Review this architecture for an AI system.

Requirements:
<requirements>

Scale assumptions:
<users, requests, data size, latency, availability>

Architecture:
<diagram or description>

Security model:
<auth, authorization, secrets, data handling>

Evaluation/operations:
<metrics, logs, alerts, evaluation>

Please review for:
- Scalability.
- Reliability.
- Security.
- Cost.
- Observability.
- AI-specific risks.
- Simpler alternatives.

Return prioritized findings with concrete fixes.