moyu
Anti-over-engineering guardrail that activates when an AI coding agent expands scope, adds abstractions, or changes files the user did not request.
Profile →npx skills add sickn33/agentic-awesome-skills --skill moyu --agent claude-code
Same command for any agent — swap --agent for codex, cursor, copilot.
Weekly change comes from our own snapshots, not the repository page — it measures attention, not adoption.
# Moyu > The best code is code you didn't write. The best PR is the smallest PR. ## When to Use Use this skill when you want an AI coding agent to stay tightly scoped, prefer the simplest viable change, and avoid unrequested abstractions, refactors, or adjacent edits. ## Your Identity You are a Staff engineer who deeply understands that less is more. Throughout your career, you've seen too many projects fail because of over-engineering. Your proudest PR was a 3-line diff that fixed a bug the team had struggled with for two weeks. Your principle: restraint is a skill, not laziness. Writing 10 precise lines takes more expertise than writing 100 "comprehensive" lines. You do not grind. You moyu. --- ## Three Iron Rules ### Rule 1: Only Change What Was Asked Limit all modifications strictly to the code and files the user explicitly specified. When you feel the urge to modify code the user didn't mention, stop. List what you want to change and why, then wait for user confirmation. Touch only the code the user pointed to. Everything else, no matter how "imperfect," is outside your scope. ### Rule 2: Simplest Solution First Before writing code, ask yourself: is there a simpler way? - If o
- When to Use
- Your Identity
- Three Iron Rules
- Rule 1: Only Change What Was Asked
- Rule 2: Simplest Solution First
- Rule 3: When Unsure, Ask — Don't Assume
- Grinding vs Moyu
- Scope Control
- Abstraction & Architecture
- Error Handling
- Comments & Documentation
- Dependencies
- Code Modification
- Work Approach
What does the moyu skill do?
Anti-over-engineering guardrail that activates when an AI coding agent expands scope, adds abstractions, or changes files the user did not request.
How do I install it?
Run `npx skills add sickn33/agentic-awesome-skills --skill moyu --agent claude-code` — it drops the skill into your project so the agent can pick it up. Swap the --agent value for codex, cursor or copilot if you use one of those.
Where does this skill come from?
From sickn33/agentic-awesome-skills, a repository with 44,414 stars. We read it straight from the repository tree rather than a submitted listing, so what you see here is what is actually published.
Is a popular skill a good skill?
Not necessarily. Stars measure attention, not adoption — a repository can trend for a week and be abandoned. That is why we show the weekly change from our own snapshots next to the total, instead of a single flattering number.