Back to directory

Service Objects Vs Fat Models

Agent skill
1 skill

Decide when Rails logic stays in the model and when it earns a service object. Use when the user asks about service objects, fat models, "where does this logic go", refactoring a controller, extracting business logic, the Result pattern, interactor gem, dry-monads, command objects, or is about to write a class ending in Service / Manager / Handler / Processor. Also use proactively when reviewing any controller action with more than ~10 lines of business logic, or any model file exceeding ~200 lines.

Install with
Claude CodeCodexCursorGitHub CopilotGemini CLI

Supported by the Atlas install prompt. Skill-specific requirements vary.

Skill stats

Skills1CategoryEngineeringStars0

About this skill

Decide when Rails logic stays in the model and when it earns a service object. Use when the user asks about service objects, fat models, "where does this logic go", refactoring a controller, extracting business logic, the Result pattern, interactor gem, dry-monads, command objects, or is about to write a class ending in Service / Manager / Handler / Processor. Also use proactively when reviewing any controller action with more than ~10 lines of business logic, or any model file exceeding ~200 lines.

Quick start

  1. Copy the install prompt. Use the green button above this README.
  2. Send it to your agent. Paste it into your coding agent’s chat and send.
  3. Review the setup. Your agent checks the skill’s instructions, requirements, and installation scope.
Review, license & listing details
Review the source before using this skill

This is an imported listing. We haven’t certified its safety, license, or compatibility. Skills may include executable scripts.

Automated security scan: Partial

Only SKILL.md was scanned. Supporting files and scripts were not checked. No safety grade has been assigned.

0 potential findings · Scanned 11/4/2026 · Scanner 0.2.1

Content SHA-256: 1d47bb13ca99a307d16525be3c5fc41826eef370bb882dd2e0d0a4f8a747a5b0

About scan coverage and limitations

About this listing

Category
Engineering
Reported license
MIT
Listing language (estimated)
English
Review status
Not individually reviewed
Agent compatibility
Atlas installation supports Claude Code, Codex, and Cursor. Skill-specific dependencies and features are checked during setup.
Service Objects Vs Fat Models | Agent Skills Atlas