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Add moyu anti-overengineering rules#209

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uucz wants to merge 2 commits intoPatrickJS:mainfrom
uucz:add-moyu
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Add moyu anti-overengineering rules#209
uucz wants to merge 2 commits intoPatrickJS:mainfrom
uucz:add-moyu

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@uucz uucz commented Mar 23, 2026

Adds moyu anti-overengineering cursor rules under the "Other" category.

Prevents AI from over-engineering: three iron rules (only change what was asked, simplest solution first, ask when unsure), anti-grinding table, moyu checklist. Benchmarked: 66% code reduction.

Source: https://github.com/uucz/moyu

Summary by CodeRabbit

  • Documentation
    • Added a new anti-overengineering rule set to project guidelines, including operating principles, an execution checklist, comparative guidance, and a matrix of common overreach patterns.
  • Chores
    • Added configuration supporting the new guideline to the repository to enable selective application and reviewer guidance.

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coderabbitai bot commented Mar 23, 2026

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info
⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: a5af64ce-6c3c-4c00-ad20-de46e9851993

📥 Commits

Reviewing files that changed from the base of the PR and between a29da4e and 5d4891c.

📒 Files selected for processing (1)
  • README.md
✅ Files skipped from review due to trivial changes (1)
  • README.md

📝 Walkthrough

Walkthrough

Added a new Moyu Anti-Overengineering Cursor rule file and a corresponding README entry that links to it; the rule defines triggers, operating principles, and a checklist to prevent scope-exceeding edits.

Changes

Cohort / File(s) Summary
Documentation
README.md
Inserted a new bullet under "Other" rules linking to ./rules/moyu-anti-overengineering/.cursorrules with a short description.
New Cursor Rule
rules/moyu-anti-overengineering/.cursorrules
Added a Cursor rule defining anti-overengineering triggers, operating principles, an execution checklist, comparative notes (Grinding vs Moyu), and an "Anti-Grinding" matrix; alwaysApply: false.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

Suggested reviewers

  • PatrickJS

Poem

🐰 I nibble at diffs that are neat and small,
I sniff out changes that scope might sprawl,
Three iron rules and a checklist to see,
When unsure, I pause — ask before spree!

🚥 Pre-merge checks | ✅ 3
✅ Passed checks (3 passed)
Check name Status Explanation
Description Check ✅ Passed Check skipped - CodeRabbit’s high-level summary is enabled.
Title check ✅ Passed The title 'Add moyu anti-overengineering rules' accurately and concisely summarizes the main change—adding a new Cursor rule configuration file for anti-overengineering guidelines under the Other rules category.
Docstring Coverage ✅ Passed No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

✏️ Tip: You can configure your own custom pre-merge checks in the settings.

✨ Finishing Touches
🧪 Generate unit tests (beta)
  • Create PR with unit tests

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Actionable comments posted: 2

🧹 Nitpick comments (2)
rules/moyu-anti-overengineering/.cursorrules (2)

59-61: Consider clarifying what "PUA" refers to.

The section mentions "PUA" as a complementary rule but doesn't define it. Users unfamiliar with this acronym might not understand the reference.

📝 Possible clarification
 ## Works with PUA
 
-PUA fixes laziness (AI does too little). Moyu fixes over-engineering (AI does too much). Install both for best results.
+PUA (a complementary Cursor rule) fixes laziness (AI does too little). Moyu fixes over-engineering (AI does too much). Install both for best results.

Or add a brief explanation of what PUA stands for if it's an established rule in the community.

🤖 Prompt for AI Agents
Verify each finding against the current code and only fix it if needed.

In `@rules/moyu-anti-overengineering/.cursorrules` around lines 59 - 61, The "##
Works with PUA" section is ambiguous; update the heading or the adjacent
sentence (the "## Works with PUA" block) to spell out or briefly describe PUA
(e.g., "PUA (Prevents Unnecessary Abstraction)" or the established meaning)
and/or add a short parenthetical sentence like "PUA refers to [full name]: a
rule that fixes laziness (AI does too little)" so readers immediately understand
the reference without needing external context.

34-34: Consider clarifying the testing guidance.

While "No tests unless asked" aligns with the anti-overengineering philosophy, it might be interpreted too strictly. Consider adding a note that critical bug fixes or new functionality might warrant discussing test coverage with the user, even if not explicitly requested.

📝 Possible refinement
-| Writing a test suite nobody asked for | No tests unless asked |
+| Writing a test suite nobody asked for | No tests unless asked (though offer to add them for critical changes) |
🤖 Prompt for AI Agents
Verify each finding against the current code and only fix it if needed.

In `@rules/moyu-anti-overengineering/.cursorrules` at line 34, Update the rule
line for "Writing a test suite nobody asked for" so the guidance is less
absolute: replace the phrase "No tests unless asked" with something like "No
tests unless asked; discuss adding tests for critical bug fixes or new
functionality with the requester" to make exceptions explicit and encourage
discussion for important changes; locate and edit the rule string "Writing a
test suite nobody asked for" in the .cursorrules entry and update its guidance
accordingly.
🤖 Prompt for all review comments with AI agents
Verify each finding against the current code and only fix it if needed.

Inline comments:
In `@README.md`:
- Line 280: The README entry for "Moyu Anti-Overengineering" currently misstates
features; update the description text for the entry referencing
"./rules/moyu-anti-overengineering/.cursorrules" to remove the erroneous
"4-level detection system" and instead list the actual contents: "Three Iron
Rules, Grinding vs Moyu comparison table, Moyu Checklist, and Anti-Grinding
table" (or replace the sentence with a short accurate bullet/phrase listing
those items). Ensure the label "Moyu Anti-Overengineering" and the path
".cursorrules" remain unchanged.
- Line 280: The "Other" category entries are out of alphabetical order; move the
"Moyu Anti-Overengineering" entry so it appears between the "Meta-Prompt" and
"Next.js (Type LLM)" entries, and also reposition "Code Pair Interviews" so it
comes after "Code Style Consistency" to restore full alphabetical ordering;
update only the ordering of the listed entries (look for the exact entry strings
"Moyu Anti-Overengineering", "Meta-Prompt", "Next.js (Type LLM)", "Code Pair
Interviews", and "Code Style Consistency") without changing their content.

---

Nitpick comments:
In `@rules/moyu-anti-overengineering/.cursorrules`:
- Around line 59-61: The "## Works with PUA" section is ambiguous; update the
heading or the adjacent sentence (the "## Works with PUA" block) to spell out or
briefly describe PUA (e.g., "PUA (Prevents Unnecessary Abstraction)" or the
established meaning) and/or add a short parenthetical sentence like "PUA refers
to [full name]: a rule that fixes laziness (AI does too little)" so readers
immediately understand the reference without needing external context.
- Line 34: Update the rule line for "Writing a test suite nobody asked for" so
the guidance is less absolute: replace the phrase "No tests unless asked" with
something like "No tests unless asked; discuss adding tests for critical bug
fixes or new functionality with the requester" to make exceptions explicit and
encourage discussion for important changes; locate and edit the rule string
"Writing a test suite nobody asked for" in the .cursorrules entry and update its
guidance accordingly.

ℹ️ Review info
⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: 56c365e2-670f-440d-9203-7d7cca2741a3

📥 Commits

Reviewing files that changed from the base of the PR and between fc2ce04 and a29da4e.

📒 Files selected for processing (2)
  • README.md
  • rules/moyu-anti-overengineering/.cursorrules

- Fix description: remove "4-level detection system" (not in file),
  replace with actual contents: comparison tables and moyu checklist
- Move entry to correct alphabetical position (after Meta-Prompt)
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