musubix-code-generation

musubix-code-generation is a skill for Claude Code from nahisaho/katashiro. It costs 36 tokens per session (1,261 once invoked), scanned A, original, MIT.

A guide for creating code from design documents and linked requirements. It supports TypeScript, JavaScript, Python, Java, Go, Rust, and C#.

In plain words
What is it for?
Use it to generate services, components, interfaces, classes, structs, or other code after the design and requirements documents are prepared.
Why use it?
It helps keep implementation connected to the project's requirements and design decisions.

Skill for Claude Code

Written for Claude Code: installed under .claude/.

Good fit Use it to generate services, components, interfaces, classes, structs, or other code after the design and requirements documents are prepared.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/nahisaho/katashiro/musubix-code-generation
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add nahisaho/katashiro --skill musubix-code-generation
Clone the repo
git clone --depth 1 https://github.com/nahisaho/katashiro

Made for: Claude Code.

Wrote this? Show the measurements

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README.md
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Your own site
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Your own site · 80×15
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Per session 36 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,261 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00036 $0.01261
Opus 5.5 $0.00014 $0.00504
Sonnet 5.5 $0.00007 $0.00252
Haiku 4.5 $0.00004 $0.00126

Measured 2mo ago against content hash 1a48bd3e480e, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

musubix-code-generation scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2mo ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

.claude/skills/musubix-code-generation/SKILL.md · 230 lines

How it starts

The opening of the file, as written. The whole thing — 230 lines — stays where its author put it; the contents beside it link to each section on GitHub.

MUSUBIX Code Generation Skill

This skill guides you through generating code from design specifications following MUSUBIX methodology.

Prerequisites

Before generating code:

  1. Verify design document exists (DES-*)
  2. Verify requirements are traceable (REQ-*)
  3. Check steering/tech.ja.md for technology stack

Supported Languages

Language Extension Features
TypeScript .ts Full support with types
JavaScript .js ES6+ modules
Python .py Type hints support
Java .java Interface/Class generation
Go .go Struct/Interface generation
Rust .rs Trait/Struct generation
C# .cs Interface/Class generation

Code Generation Workflow

Step 1: Read Design Document

# Generate code from design
npx musubix codegen generate <design-file>

Step 2: Generate with Traceability

Always include requirement references:

/**
 * UserService - Handles user operations
 * 
 * @see REQ-INT-001 - Neuro-Symbolic Integration
 * @see DES-INT-001 - Integration Layer Design
 */
export class UserService {
  // Implementation
}

Step 3: Follow Test-First (Article III)

  1. Write test first:
describe('UserService', () => {
  it('should create user', async () => {
    const service = new UserService();
    const user = await service.create({ name: 'Test' });
    expect(user.id).toBeDefined();
  });
});
  1. Implement minimal code:
export class UserService {
  async create(data: CreateUserDto): Promise<User> {
    return { id: generateId(), ...data };
  }
}
  1. Refactor

Design Pattern Templates

Singleton Pattern

/**
 * @see REQ-DES-001 - Pattern Detection
 * @pattern Singleton
 */
export class ConfigManager {
  private static instance: ConfigManager;
  
  private constructor() {}
  
  static getInstance(): ConfigManager {
    if (!ConfigManager.instance) {
      ConfigManager.instance = new ConfigManager();
    }
    return ConfigManager.instance;
  }
}

Read the full file on GitHub · 230 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 2mo ago First seen · 230 lines · 36 tokens per session scan A 1a48bd3e480e

Subscribe to this mod's changes

musubix-code-generation is a skill published in the GitHub repository nahisaho/katashiro (0 stars, last pushed 9mo ago), licensed MIT. It adds 36 tokens to every session and 1,261 once invoked, about $0.0001 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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