Borrowing it
Nothing to install: this file belongs to swhsiang/create-claude-app. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/swhsiang/create-claude-app/main/CLAUDE.mdgit clone --depth 1 https://github.com/swhsiang/create-claude-appWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/instructions/swhsiang/create-claude-app/claude-md)<a href="https://agentmods.dev/instructions/swhsiang/create-claude-app/claude-md"><img src="https://agentmods.dev/badge/instructions/swhsiang/create-claude-app/claude-md.svg" alt="Measured on agentmods" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.03026 | $0.03026 |
| Opus 5 | $0.01513 | $0.01513 |
| Sonnet 5 | $0.00605 | $0.00605 |
| Haiku 4.5 | $0.00303 | $0.00303 |
Grade A, and why
create-claude-app CLAUDE.md 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 6d 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.
How it starts
The opening of the file, as written. The whole thing — 333 lines — stays where its author put it; the contents beside it link to each section on GitHub.
create-claude-app Development Guide
Project Overview
Interactive Python CLI tool that scaffolds new projects optimized for Claude Code development. Creates structured project templates with comprehensive CLAUDE.md files.
Development Strategy and Testing Plan
Test-Driven Development (TDD) Approach
Following TDD methodology with comprehensive test coverage before implementation.
Testing Plan
Unit Tests Structure
tests/
├── test_cli.py # CLI argument parsing, main entry point
├── test_prompts.py # User interaction prompts
├── test_generators.py # Template generation logic
├── test_validators.py # Input validation and compatibility checks
├── test_file_operations.py # File/directory creation and cleanup
└── fixtures/ # Test data and expected outputs
├── templates/ # Sample template files
└── expected_projects/ # Expected project structures
Core Test Categories
CLI Interface Tests (test_cli.py)
- Command parsing with valid/invalid arguments
- Help text display
- Version information
- Error handling for missing arguments
User Interaction Tests (test_prompts.py)
- Frontend framework selection
- UI framework compatibility validation
- Backend and database option selection
- Package manager selection (npm, yarn)
- Atlas migration tool prompt
- Build tool selection (Vite, Webpack, Babel + Webpack)
- GitHub Actions CI/CD prompt
Template Generation Tests (test_generators.py)
- File structure creation for different combinations
- CLAUDE.md content generation
- Package.json/requirements.txt creation
- Docker infrastructure generation (infra/docker/ folder structure)
- Docker-compose.yml generation (main, dev, staging, prod variants)
- Frontend/Backend/Database Dockerfile generation
- .env.example file creation
- GitHub Actions workflow generation
- Framework entry point file generation
- Build tool configuration file generation
- Enhanced README.md with Docker commands section
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.
- 6d ago First seen · 333 lines · 3,026 tokens per session scan A a612dfcac293
create-claude-app CLAUDE.md is an instructions file published in the GitHub repository swhsiang/create-claude-app (2 stars, last pushed 1y ago), licensed MIT. It adds 3,026 tokens to every session, about $0.0151 per session on Opus 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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