# Blueprint title

Status: Draft — validation and review pending.

## Problem

Describe the engineering problem, affected workload, and desired outcome.

## When to use this

Identify the conditions where this design is a good fit.

## When not to use this

State exclusions and cases that need a different approach.

## Architecture

Add a diagram and explain trust boundaries and data flow.

## Components

List responsibilities, interfaces, and versions where relevant.

## Request flow

Trace a request from entry through completion and error handling.

## Deployment assumptions

State hardware, models, runtime, network, traffic, and capacity assumptions.

## Operational characteristics

Explain startup, readiness, upgrades, draining, and recovery.

## Scaling considerations

Explain scale signals, bottlenecks, limits, and cold-start behavior.

## Observability

Specify metrics, logs, traces, SLOs, and alerting.

## Failure modes

Describe expected failures, detection, mitigation, and recovery.

## Security considerations

Document identity, authorization, isolation, secrets, and data handling.

## Cost considerations

Describe cost drivers and measurement boundaries; source any numerical claims.

## Tradeoffs

Explain what the design improves and what it makes harder.

## Alternatives

Compare plausible alternatives and when they fit better.

## Example implementation

Link code or show a clearly labeled example with prerequisites and validation status.

## References

Link primary sources, supporting measurements, and design discussions.

## Contributors and reviewers

Name actual contributors, disclose affiliations, and record review status. Do not imply a review that has not happened.

## Benchmark Context

For quantitative claims include hardware, model, runtime, workload, concurrency, prompt/output shape, configuration/methodology, date tested, source/code, and limitations.