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When NOT to Use Microservices

Agent skill
1 skill

A diagnostic skill that refuses microservices in the wrong contexts and recommends a modular monolith instead. Covers the team-size threshold, the deploy-coupling argument, the distributed-systems tax, when DHH's "majestic monolith" is correct, and the "you're not Netflix" rule. Use when the user mentions microservices, splitting our monolith, service-oriented architecture, going micro, "should we split the codebase", or asks how to break up a Rails app. THIS SKILL'S JOB IS TO PUSH BACK before the user spends a year on a migration they will regret.

Install with
Claude CodeCodexCursorGitHub CopilotGemini CLI

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

Skill stats

Skills1CategoryEngineeringStars0

About this skill

A diagnostic skill that refuses microservices in the wrong contexts and recommends a modular monolith instead. Covers the team-size threshold, the deploy-coupling argument, the distributed-systems tax, when DHH's "majestic monolith" is correct, and the "you're not Netflix" rule. Use when the user mentions microservices, splitting our monolith, service-oriented architecture, going micro, "should we split the codebase", or asks how to break up a Rails app. THIS SKILL'S JOB IS TO PUSH BACK before the user spends a year on a migration they will regret.

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

Content SHA-256: 6f06b72c057d2bcf8ee864ec523a29e8a85c6bbb2a9048c33d5e9a57398feb53

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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.
When NOT to Use Microservices | Agent Skills Atlas