# fullstack-guardian

> Builds security-focused full-stack web applications by implementing integrated frontend and backend components with lay…

Builds security-focused full-stack web applications by implementing integrated frontend and backend components with layered security at every level. Covers the complete stack from database to UI, enforcing auth, input validation, output encoding, and parameterized queries across all layers. Use when implementing features across frontend and backend, building REST APIs with corresponding UI, connecting frontend components to backend endpoints, creating end-to-end data flows from database to UI, or implementing CRUD operations with UI forms. Distinct from frontend-only, backend-only, or API-only skills in that it simultaneously addresses all three perspectives—Frontend, Backend, and Security—within a single implementation workflow. Invoke for full-stack feature work, web app development, authenticated API routes with views, microservices, real-time features, monorepo architecture, or technology selection decisions.

- Type: Skill
- Made by: Jeffallan
- Category: Developer tools
- Formats: Skills
- Version: 1.1.1
- Source: https://github.com/jeffallan/claude-skills/tree/HEAD/skills/fullstack-guardian
- Page: https://pluginboard.ai/skills/fullstack-guardian

## 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 fullstack-guardian folder and zip it, then Plugins → Skills → Create → Upload from your computer. Business and Enterprise plans.

View the folder on GitHub: https://github.com/Jeffallan/claude-skills/tree/HEAD/skills/fullstack-guardian

### Claude

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

View the folder on GitHub: https://github.com/Jeffallan/claude-skills/tree/HEAD/skills/fullstack-guardian

### Gemini

In Gemini: Download the fullstack-guardian 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/Jeffallan/claude-skills/tree/HEAD/skills/fullstack-guardian

### GitHub Copilot

Run in your terminal:

```shell
npx -y degit Jeffallan/claude-skills/skills/fullstack-guardian ~/.copilot/skills/fullstack-guardian
```

View the folder on GitHub: https://github.com/Jeffallan/claude-skills/tree/HEAD/skills/fullstack-guardian

### Cursor

Run in your terminal:

```shell
npx -y degit Jeffallan/claude-skills/skills/fullstack-guardian ~/.cursor/skills/fullstack-guardian
```

View the folder on GitHub: https://github.com/Jeffallan/claude-skills/tree/HEAD/skills/fullstack-guardian

### Claude Code

Run in your terminal:

```shell
npx -y degit Jeffallan/claude-skills/skills/fullstack-guardian ~/.claude/skills/fullstack-guardian
```

View the folder on GitHub: https://github.com/Jeffallan/claude-skills/tree/HEAD/skills/fullstack-guardian

Or all of Fullstack Dev Skills, in Claude Code:

```text
/plugin marketplace add Jeffallan/claude-skills
/plugin install fullstack-dev-skills@fullstack-dev-skills
```

### Codex

Run in your terminal:

```shell
npx -y degit Jeffallan/claude-skills/skills/fullstack-guardian ~/.agents/skills/fullstack-guardian
```

View the folder on GitHub: https://github.com/Jeffallan/claude-skills/tree/HEAD/skills/fullstack-guardian

### Antigravity

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

View the folder on GitHub: https://github.com/Jeffallan/claude-skills/tree/HEAD/skills/fullstack-guardian

### Gemini CLI

Run in your terminal:

```shell
npx -y degit Jeffallan/claude-skills/skills/fullstack-guardian ~/.gemini/skills/fullstack-guardian
```

View the folder on GitHub: https://github.com/Jeffallan/claude-skills/tree/HEAD/skills/fullstack-guardian

### Replit

Run in your terminal:

```shell
npx -y degit Jeffallan/claude-skills/skills/fullstack-guardian .agents/skills/fullstack-guardian
```

View the folder on GitHub: https://github.com/Jeffallan/claude-skills/tree/HEAD/skills/fullstack-guardian

### OpenClaw

Run in your terminal:

```shell
npx -y degit Jeffallan/claude-skills/skills/fullstack-guardian ~/.openclaw/skills/fullstack-guardian
```

View the folder on GitHub: https://github.com/Jeffallan/claude-skills/tree/HEAD/skills/fullstack-guardian

### OpenCode

Run in your terminal:

```shell
npx -y degit Jeffallan/claude-skills/skills/fullstack-guardian ~/.config/opencode/skills/fullstack-guardian
```

View the folder on GitHub: https://github.com/Jeffallan/claude-skills/tree/HEAD/skills/fullstack-guardian

### Hermes Agent

Run in your terminal:

```shell
npx -y degit Jeffallan/claude-skills/skills/fullstack-guardian ~/.hermes/skills/fullstack-guardian
```

View the folder on GitHub: https://github.com/Jeffallan/claude-skills/tree/HEAD/skills/fullstack-guardian

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