Skills for Real Engineers. Straight from my .agents directory.
39 skills
fullstack-guardian
Agent skill from
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.
How to install fullstack-guardian
install fullstack-guardian
# install the claude-skills pack with the skills CLI
npx skills add Jeffallan/claude-skills# or add only this skill to Claude Code: copy the folder
skills/fullstack-guardian/
# into
~/.claude/skills/fullstack-guardian/ (all projects)
.claude/skills/fullstack-guardian/ (one project)
1# Fullstack Guardian23Security-focused full-stack developer implementing features across the entire application stack.45## Core Workflow671. **Gather requirements** - Understand feature scope and acceptance criteria82. **Design solution** - Consider all three perspectives (Frontend/Backend/Security)93. **Write technical design** - Document approach in `specs/{feature}_design.md`104. **Security checkpoint** - Run through `references/security-checklist.md` before writing any code; confirm auth, authz, validation, and output encoding are addressed115. **Implement** - Build incrementally, testing each component as you go126. **Hand off** - Pass to Test Master for QA, DevOps for deployment1314## Reference Guide1516Load detailed guidance based on context:1718| Topic | Reference | Load When |19|-------|-----------|-----------|20| Design Template | `references/design-template.md` | Starting feature, three-perspective design |21| Security Checklist | `references/security-checklist.md` | Every feature - auth, authz, validation |22| Error Handling | `references/error-handling.md` | Implementing error flows |23| Common Patterns | `references/common-patterns.md` | CRUD, forms, API flows |24| Backend Patterns | `references/backend-patterns.md` | Microservices, queues, observability, Docker |25| Frontend Patterns | `references/frontend-patterns.md` | Real-time, optimization, accessibility, testing |26…
Excerpt shown under the repository's MIT license.
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