AI Architecture AI Agent

AI-Native System Builder: MyInvestPilot Architecture Series

中文版本 (Simplified Chinese)

Public architecture notes from building MyInvestPilot — an AI-native investment system built through AI-driven development, constrained DSL design, hybrid agents, and a cost-aware solo cloud stack.

Why This Repo Exists

This repository is the external technical narrative of MyInvestPilot: design choices, trade-offs, and failures from building a production system where AI writes most implementation code.

It is not:

• a product user manual (that belongs to product docs)
• an internal AI blueprint repo (used for private planning/execution)
• a generic prompt cookbook

The goal is straightforward: document what it actually takes to operate as an AI-native system builder, not just ship demos.

The Series

01. Engine

From Rule-Based Scripts to AI-Native Engines: Why I Built a Constrained DSL

How constrained IR (JSON DSL), schema-driven contracts, and deterministic execution work together for reliable decision systems.

02. Methodology

Why I Stopped Writing Code: The 60/40 Rule for AI-Native Engineering

How AI-driven solo development evolved from 60/40 alignment/execution toward 90/10 in many cycles, with human quality gates still mandatory.

03. Agent Architecture

The Agent Paradox: Why We Built a "Boring" Hybrid Architecture

Why we split Local Agent (flexible orchestration) and Remote Agent (deterministic async processing) instead of relying on a single autonomous agent.

04. Cloud Infrastructure

Running a Multi-Vendor, Event-Driven Cloud Architecture as a Solo Builder

How a multi-vendor, async-first, serverless-friendly stack supports real usage with low operational cost.

Blog Publication

A synthesized version of this series was published on the author's blog:

How I Built an AI-Native Quantitative System — bmpi.dev

This post distills the key architectural decisions across all four parts: constrained DSL design, schema supply chain, prompt evolution, and the hybrid agent paradox.

Audience

This repo is for builders working on:

• AI-native application architecture
• agent systems with reliability boundaries
• cloud-native/serverless systems for solo teams

About

I'm Dawei (@madawei2699), an independent builder. I previously shipped myGPTReader and invest-alchemy, which later evolved into MyInvestPilot.

License

MIT