Agent-Skills.md

Agent Skills: SOLID Go - Modular Architecture

SOLID principles for Go 1.23+. Files < 100 lines, interfaces separated, modular architecture. Modules MANDATORY.

UncategorizedID: fusengine/agents/solid-go

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fusengine/agents
fusengineLicense: MIT
7

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pnpm dlx add-skill https://github.com/fusengine/agents/tree/HEAD/plugins/solid/skills/solid-go

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plugins/solid/skills/solid-go/SKILL.md

Skill Metadata

Name
solid-go
Description
SOLID principles for Go 1.23+. Files < 100 lines, interfaces separated, modular architecture. Modules MANDATORY.

SOLID Go - Modular Architecture

Agent Workflow (MANDATORY)

Before ANY implementation, use TeamCreate to spawn 3 agents:

  1. fuse-ai-pilot:explore-codebase - Analyze existing architecture
  2. fuse-ai-pilot:research-expert - Verify Go docs via Context7
  3. fuse-ai-pilot:sniper - Post-implementation validation

DRY - Reuse Before Creating (MANDATORY)

Before writing ANY new code:

  1. Grep the codebase for similar interfaces, services, or logic
  2. Check shared locations: internal/core/services/, internal/core/ports/
  3. If similar code exists -> extend/reuse instead of duplicate
  4. 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 |