Agent skill
solid-go
SOLID principles for Go 1.23+. Files < 100 lines, interfaces separated, modular architecture. Modules MANDATORY.
Install this agent skill to your Project
npx add-skill https://github.com/majiayu000/claude-skill-registry/tree/main/skills/other/other/solid-go
SKILL.md
SOLID Go - Modular Architecture
Agent Workflow (MANDATORY)
Before ANY implementation, use TeamCreate to spawn 3 agents:
- fuse-ai-pilot:explore-codebase - Analyze existing architecture
- fuse-ai-pilot:research-expert - Verify Go docs via Context7
- fuse-ai-pilot:sniper - Post-implementation validation
DRY - Reuse Before Creating (MANDATORY)
Before writing ANY new code:
- Grep the codebase for similar interfaces, services, or logic
- Check shared locations:
internal/core/services/,internal/core/ports/ - If similar code exists -> extend/reuse instead of duplicate
- If code will be used by 2+ features -> create it in
internal/core/
Architecture (Modules MANDATORY)
| Layer | Location | Max Lines |
|---|---|---|
| Handlers | internal/modules/[feature]/handlers/ |
50 |
| Services | internal/modules/[feature]/services/ |
100 |
| Repositories | internal/modules/[feature]/repositories/ |
100 |
| Ports (interfaces) | internal/modules/[feature]/ports/ |
30 |
| Models | internal/modules/[feature]/models/ |
50 |
| Shared | internal/core/{services,ports,models}/ |
- |
NEVER use flat internal/ structure - always internal/modules/[feature]/
Critical Rules (MANDATORY)
| Rule | Value |
|---|---|
| File limit | 100 lines (split at 90) |
| Handlers | < 50 lines, delegate to services |
| Interfaces | ports/ directory ONLY |
| Godoc | Every exported function documented |
| Accept interfaces | Return structs |
| Small interfaces | 1-3 methods max (Go idiom) |
Reference Guide
Concepts
| Topic | Reference | When to consult |
|---|---|---|
| SOLID Overview | solid-principles.md | Quick reference |
| SRP | single-responsibility.md | Fat structs |
| OCP | open-closed.md | Adding providers |
| LSP | liskov-substitution.md | Contracts |
| ISP | interface-segregation.md | Fat interfaces |
| DIP | dependency-inversion.md | Injection |
| Architecture | architecture-patterns.md | Hex/modular |
Templates
| Template | When to use |
|---|---|
| module.md | Feature module structure |
| service.md | Business logic service |
| interface.md | Port definition |
| handler.md | HTTP handler |
| error.md | Custom errors |
| test.md | Table-driven tests |
Forbidden
| Anti-Pattern | Fix |
|---|---|
| Files > 100 lines | Split at 90 |
| Interfaces in impl files | Move to ports/ directory |
| Fat interfaces (4+ methods) | Split into small interfaces |
Flat internal/ structure |
Use internal/modules/[feature]/ |
init() for dependency wiring |
Use constructor injection |
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