Case Studies · AI

Relay Feature Module

FastAPI + LLM service module with typed contracts and documented failure modes for product teams that need something engineering can own.

Maps to P2 · Feature Module (FastAPI + LLM)

Sample interface for Relay Feature Module Illustrative

Challenge

Product teams are tired of chatbot demos. They need a module with clear request/response schemas that slots behind an existing gateway.

Approach

Typed FastAPI schemas, structured output or tool path as scoped, retries and logging, acceptance scenarios, plus OpenAPI and a runbook.

Outcome

API docs and request inspector UI with contracts first — extendable module, not a black-box demo.

  • 2 week build
  • OpenAPI handoff
  • Typed contracts

Product names such as Meridian Apex, Signal Deck, Ledgerly, and Northline Ops are Harbor project codenames for illustrative portfolio studies. Metrics show timeline, scope, and handoff style — not client logos, attributed testimonials, or performance claims. Quant outcomes are engineering handoffs only; no profit, return, or win-rate guarantees. Illustrative portfolio studies for a new studio — not attributed client testimonials or performance claims. Quant work is engineering handoff only; no profit, return, or win-rate guarantees.

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