# Architecture Plan

> Planning scalable system designs and architectural patterns

- Skill: `dongduong2001/architecture-plan` (Agent Skill)
- Install (CLI): `npx skillmds@latest add dongduong2001/architecture-plan`
- Raw SKILL.md: https://api.skillmd.com/api/skills/dongduong2001/architecture-plan/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: DongDuong2001 (https://skillmd.com/u/dongduong2001)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/dongduong2001/architecture-plan

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# Architecture Planning Skill

This skill is pivotal during the PLAN phase for determining system boundaries, deployment topologies, and core technologies.

## When to use this skill
- When starting a greenfield project or conducting a major refactor.
- When deciding between Monolith, Microservices, Serverless, or Event-Driven architectures.
- When preparing risk assessments and scaling strategies.

## Guidelines
- Prioritize simplicity. Do not over-engineer for traffic that doesn't exist yet (YAGNI).
- Map out clear domain boundaries (Domain-Driven Design) to ensure separation of concerns.
- Consider both synchronous (API) and asynchronous (Pub/Sub, Queues) communication paths.
- Ensure data ownership is clear (which service owns which data).