For developers

Our Dev Standards for Claude Code

7 categories, two Japanese methodologies, one command. Audit any project against the standards we use every day at N-Solution.

Download for Claude Code

Three steps, that's it

Download the file, drop it in your Claude Code commands folder, and run it.

1

Copy the file to your commands folder

# macOS / Linux

cp n-solution-dev-standards.md ~/.claude/commands/n-solution-rules-check.md

# Windows

copy n-solution-dev-standards.md %USERPROFILE%\.claude\commands\n-solution-rules-check.md

2

Run the command in any project

/n-solution-rules-check

3

Get your full audit report

Claude scores your project on 7 categories and gives you a prioritized list of improvements.

What gets scored

Each category maps to a real principle we apply in every project.

1
探究

User Research & Problem Fit

Does the code solve a real problem? Is the UX logical from the user's perspective?

Score: /10
2
改善

Code Quality & Hygiene

Clean, consistent code. No dead code, no unresolved TODOs, no duplicated patterns.

Score: /10
3

Africa-Ready Performance

Works on slow 3G, $100 phones, and limited data. Weighted x1.5 because performance is not optional.

Score: /15
4

Production Security

Auth on every mutation, no hardcoded secrets, timing-safe comparisons. Weighted x1.5.

Score: /15
5

Accessibility & Inclusion

Proper labels, readable text, large touch targets. Technology should include, not exclude.

Score: /5
6

Code Architecture

Logical structure, separated responsibilities, appropriate state management.

Score: /10
7

Resilience & Error Handling

Graceful errors, meaningful states, proper logging. No blank screens.

Score: /5

What the output looks like

A clear score, a grade, and actionable next steps.

$ /n-solution-rules-check

PROJECT: my-app

DATE: 2026-03-27

OVERALL GRADE: 52/70 — B

Tankyu (User Fit): 8/10 ████████░░

Kaizen (Code Quality): 7/10 ███████░░░

Performance (x1.5): 11/15 ███████████░░░░

Security (x1.5): 10/15 ██████████░░░░░

Accessibility: 4/5 ████░

Architecture: 8/10 ████████░░

Resilience: 4/5 ████░

Build with discipline

Download the standards we use at N-Solution. Apply Tankyu and Kaizen to your own projects.

Download for Claude CodeLearn about our method