fullstack-guardian
Builds security-focused full-stack web applications by implementing integrated frontend and backend components with layered security at every level.
Source: Jeffallan
At a glance
- Best for
- Development
- Works with
- Claude Code
- Outcome
- Builds security-focused full-stack web applications by implementing integrated frontend and backend components with layered security at every level.
- Source
- Jeffallan/claude-skills
01 / Understand the skill
About fullstack-guardian
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.
Requirements
- The target application’s frontend/backend frameworks, database and test tools. Examples are patterns to adapt, not a runnable starter application.
- Preserve the Skill directory and bundled references; compatibility is recorded as Compatible, not runtime Verified.
Check before installing
Compatible platforms
Claude Code
Best fit
Development
Review the source instructions if the required output differs from the formats described above.
Install and use
Compatible with Claude Code · Published by Jeffallan
Ready to add fullstack-guardian?
Use the published instructions below, then provide the required input and describe the result you need.
General instructions · Claude Code
npx -y skills add Jeffallan/claude-skills --skill fullstack-guardian --agent claude-code
Review the source repository and license before installing third-party skills.
Continue exploring
Similar skills
Authoritative reference for the Claude API and Anthropic SDKs: model IDs, pricing, thinking/effort params, streaming, tool use, caching, managed agents, and model migration.
Read, edit, create, and fix Excel/CSV files — formulas, formatting, charts, and clean financial models with zero formula errors.
Generate distinctive, production-grade frontend UI that avoids generic AI aesthetics — pages, components, dashboards, and landing pages.
Build high-quality MCP (Model Context Protocol) servers in Python (FastMCP) or Node/TypeScript that let LLMs use external services through well-designed tools.

