feat: Add mandatory guidelines for clean code and design system, and update related skills in backend and frontend skill documentation.

Author: ciro-maciel

.agent/skills/riligar-dev-backend/SKILL.md

@@ -9,6 +9,17 @@ allowed-tools: Read, Write, Edit, Glob, Grep
 > API design principles and decision-making for 2025.
 > **Learn to THINK, not copy fixed patterns.**
 
+---
+
+## Mandatory Guidelines
+
+> [!IMPORTANT]
+> All work in this skill MUST adhere to:
+>
+> - @[.agent/skills/riligar-dev-clean-code] (Clean Code Standards)
+
+---
+
 ## 🎯 Selective Reading Rule
 
 **Read ONLY files relevant to the request!** Check the content map, find what you need.
@@ -32,13 +43,12 @@ allowed-tools: Read, Write, Edit, Glob, Grep
 
 ---
 
-## 🔗 Related Skills
-
-| Need               | Skill                           |
-| ------------------ | ------------------------------- |
-| API implementation | `@[skills/backend-development]` |
-| Data structure     | `@[skills/database-design]`     |
-| Security details   | `@[skills/security-hardening]`  |
+| Need               | Skill                              |
+| ------------------ | ---------------------------------- |
+| API implementation | `@[skills/backend-development]`    |
+| Data structure     | `@[skills/database-design]`        |
+| Security details   | `@[skills/security-hardening]`     |
+| Clean Code         | `@[skills/riligar-dev-clean-code]` |
 
 ---
 

.agent/skills/riligar-dev-frontend/SKILL.md

@@ -10,6 +10,16 @@ allowed-tools: Read, Write, Edit, Glob, Grep
 
 ---
 
+## Mandatory Guidelines
+
+> [!IMPORTANT]
+> All work in this skill MUST adhere to:
+>
+> - @[.agent/skills/riligar-design-system] (Design and Visual System)
+> - @[.agent/skills/riligar-dev-clean-code] (Clean Code Standards)
+
+---
+
 ## 1. Component Design Principles
 
 ### Component Types
@@ -195,4 +205,12 @@ allowed-tools: Read, Write, Edit, Glob, Grep
 
 ---
 
+---
+
+## Related Skills
+
+- @[.agent/skills/riligar-design-system]
+- @[.agent/skills/riligar-dev-clean-code]
+- @[.agent/skills/riligar-tech-stack]
+
 > **Remember:** React is about composition. Build small, combine thoughtfully.