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AI System Architecture Templates

Production-ready RFC specifications, vector retrieval evaluation schemas, and vendor audit questionnaires. Free to copy, modify, and deploy within your organization with zero email gates.

Enterprise AI System RFC Template

Copyable Markdown Spec

Use this standardized Request for Comments (RFC) template when proposing new RAG, multi-agent, or LLM microservice architectures to your engineering committee. 

# Enterprise AI System Architecture RFC Template
**Project Name**: [e.g., Customer Support LangGraph Agent]
**Author**: [Your Name / Architect]
**Status**: DRAFT | IN REVIEW | APPROVED
**Target SLA**: Latency < 600ms | Precision > 98%

## 1. Executive Summary
Brief 2-sentence description of the problem and proposed architectural solution.

## 2. Technical Requirements & Constraints
- Vector Database: PostgreSQL pgvector (HNSW index)
- Orchestration: LangGraph State Graph with PostgresSaver
- Security Compliance: Zero Data Retention (ZDR) + PII Masking Middleware

## 3. Data Flow & Sequence Diagram
1. User prompt received by Gateway -> Pass to PII Masking Proxy.
2. Filtered prompt sent to RAG Retrieval Service -> Query pgvector.
3. Top 30 candidate chunks passed to Cohere Rerank v3.
4. Top 5 reranked chunks injected into LLM System Prompt context.
5. Generated response returned to Gateway -> Unmask PII tokens.