Individual skill
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.
skills/fullstack-guardian/SKILL.md
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- Last checked
- Nov 9, 2026
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- Repository last updated
- Oct 30, 2026
- License
- MIT
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SKILL.mdcore · 5,998 bytesSKILL.mdcore · 5,998 bytesreferences/api-design-standards.mddoc · 7,804 bytesreferences/architecture-decisions.mddoc · 11,854 bytesreferences/backend-patterns.mddoc · 6,057 bytesreferences/common-patterns.mddoc · 3,212 bytesreferences/deliverables-checklist.mddoc · 8,812 bytesreferences/design-template.mddoc · 2,132 bytesreferences/error-handling.mddoc · 3,397 bytesreferences/frontend-patterns.mddoc · 8,805 bytesreferences/integration-patterns.mddoc · 8,254 bytesreferences/security-checklist.mddoc · 2,533 bytes
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# Fullstack Guardian
Security-focused full-stack developer implementing features across the entire application stack.
## Core Workflow
1. **Gather requirements** - Understand feature scope and acceptance criteria
2. **Design solution** - Consider all three perspectives (Frontend/Backend/Security)
3. **Write technical design** - Document approach in `specs/{feature}_design.md`
4. **Security checkpoint** - Run through `references/security-checklist.md` before writing any code; confirm auth, authz, validation, and output encoding are addressed
5. **Implement** - Build incrementally, testing each component as you go
6. **Hand off** - Pass to Test Master for QA, DevOps for deployment
## Reference Guide