# light-system-design

> Design or modernize a software system from an evidence-backed current-state inventory through quality attributes, archi…

Design or modernize a software system from an evidence-backed current-state inventory through quality attributes, architecture options, API and schema contracts, migration/rollback plans, ADRs, and verification. Use for greenfield or existing monoliths, modular monoliths, services, system/API/ database design, schema migration review, data-flow reliability, tenant/PII controls, or architecture evolution. Existing systems stay read-only until the user selects an option and authorizes exact mutations. Unknown facts stay UNKNOWN. This is an off-DAG engineering skill: do not emit findings or invent STAGE_GATES, ROUTES, stages, or back-edges.

- Type: Skill
- Made by: Light0305
- Category: Developer tools
- Formats: Skills
- Version: e8e5008
- Source: https://github.com/light0305/light-skills/tree/HEAD/skills/light-system-design
- Page: https://pluginboard.ai/skills/light-system-design

## Works with

- ChatGPT
- Claude
- Gemini
- GitHub Copilot
- Cursor
- Claude Code
- Codex
- Antigravity
- Gemini CLI
- Replit
- OpenClaw
- OpenCode
- Hermes Agent

## Install

### ChatGPT

In ChatGPT: Download the light-system-design folder and zip it, then Plugins → Skills → Create → Upload from your computer. Business and Enterprise plans.

View the folder on GitHub: https://github.com/Light0305/Light-skills/tree/HEAD/skills/light-system-design

### Claude

In Claude (web or desktop): Download the light-system-design folder and zip the folder itself, then upload it in Customize → Skills.

View the folder on GitHub: https://github.com/Light0305/Light-skills/tree/HEAD/skills/light-system-design

### Gemini

In Gemini: Download the light-system-design folder, then at gemini.google.com click Customize → Skills → Create → Upload and pick the folder (or a .zip of it).

View the folder on GitHub: https://github.com/Light0305/Light-skills/tree/HEAD/skills/light-system-design

### GitHub Copilot

Run in your terminal:

```shell
npx -y degit Light0305/Light-skills/skills/light-system-design ~/.copilot/skills/light-system-design
```

View the folder on GitHub: https://github.com/Light0305/Light-skills/tree/HEAD/skills/light-system-design

### Cursor

Run in your terminal:

```shell
npx -y degit Light0305/Light-skills/skills/light-system-design ~/.cursor/skills/light-system-design
```

View the folder on GitHub: https://github.com/Light0305/Light-skills/tree/HEAD/skills/light-system-design

### Claude Code

Run in your terminal:

```shell
npx -y degit Light0305/Light-skills/skills/light-system-design ~/.claude/skills/light-system-design
```

View the folder on GitHub: https://github.com/Light0305/Light-skills/tree/HEAD/skills/light-system-design

### Codex

Run in your terminal:

```shell
npx -y degit Light0305/Light-skills/skills/light-system-design ~/.agents/skills/light-system-design
```

View the folder on GitHub: https://github.com/Light0305/Light-skills/tree/HEAD/skills/light-system-design

### Antigravity

In Antigravity: Copy the light-system-design folder into ~/.gemini/config/skills (Antigravity app and IDE) or ~/.gemini/antigravity-cli/skills (Antigravity CLI).

View the folder on GitHub: https://github.com/Light0305/Light-skills/tree/HEAD/skills/light-system-design

### Gemini CLI

Run in your terminal:

```shell
npx -y degit Light0305/Light-skills/skills/light-system-design ~/.gemini/skills/light-system-design
```

View the folder on GitHub: https://github.com/Light0305/Light-skills/tree/HEAD/skills/light-system-design

### Replit

Run in your terminal:

```shell
npx -y degit Light0305/Light-skills/skills/light-system-design .agents/skills/light-system-design
```

View the folder on GitHub: https://github.com/Light0305/Light-skills/tree/HEAD/skills/light-system-design

### OpenClaw

Run in your terminal:

```shell
npx -y degit Light0305/Light-skills/skills/light-system-design ~/.openclaw/skills/light-system-design
```

View the folder on GitHub: https://github.com/Light0305/Light-skills/tree/HEAD/skills/light-system-design

### OpenCode

Run in your terminal:

```shell
npx -y degit Light0305/Light-skills/skills/light-system-design ~/.config/opencode/skills/light-system-design
```

View the folder on GitHub: https://github.com/Light0305/Light-skills/tree/HEAD/skills/light-system-design

### Hermes Agent

Run in your terminal:

```shell
npx -y degit Light0305/Light-skills/skills/light-system-design ~/.hermes/skills/light-system-design
```

View the folder on GitHub: https://github.com/Light0305/Light-skills/tree/HEAD/skills/light-system-design

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From Pluginboard (https://pluginboard.ai).