Borrowing it
Nothing to install: this file belongs to fltman/project-scaffolder. 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/fltman/project-scaffolder/main/CLAUDE.mdgit clone --depth 1 https://github.com/fltman/project-scaffolderWrote 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/fltman/project-scaffolder/claude-md)<a href="https://agentmods.dev/instructions/fltman/project-scaffolder/claude-md"><img src="https://agentmods.dev/badge/instructions/fltman/project-scaffolder/claude-md/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/instructions/fltman/project-scaffolder/claude-md"><img src="https://agentmods.dev/badge/instructions/fltman/project-scaffolder/claude-md.svg" alt="Reviewed on agentmods" width="80" 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 | $0.02280 | $0.02280 |
| Opus 5.5 | $0.00912 | $0.00912 |
| Sonnet 5.5 | $0.00456 | $0.00456 |
| Haiku 4.5 | $0.00228 | $0.00228 |
Grade A, and why
project-scaffolder 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 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.
How it starts
The opening of the file, as written. The whole thing — 266 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Claude Code Project Scaffolder
A meta-project for setting up new Claude Code projects with optimal CLAUDE.md files, agent configurations, and skill definitions.
IMPORTANT: Reference Documentation
Before scaffolding projects or generating CLAUDE.md files, READ these authoritative sources to ensure you're using the latest best practices:
Required Reading (fetch these URLs)
- Claude Code Best Practices: https://www.anthropic.com/engineering/claude-code-best-practices
- Building Effective Agents: https://www.anthropic.com/engineering/building-effective-agents
- Agent Skills Guide: https://www.anthropic.com/engineering/equipping-agents-for-the-real-world-with-agent-skills
- Claude Agent SDK: https://www.anthropic.com/engineering/building-agents-with-the-claude-agent-sdk
- Subagents Documentation: https://code.claude.com/docs/en/sub-agents
- CLAUDE.md Files Guide: https://www.claude.com/blog/using-claude-md-files
When working on a scaffolding task, fetch the relevant URLs above to ensure recommendations are current. The Anthropic engineering blog is regularly updated with new patterns and practices.
Project Purpose
This project helps developers quickly scaffold new Claude Code projects with:
- Well-structured CLAUDE.md files tailored to their stack
- Custom slash commands for their workflows
- Subagent configurations for specialized tasks
- Agent skills for domain-specific capabilities
- MCP server configurations
- Best-practice project structures
Core Principles
1. Progressive Disclosure
When generating CLAUDE.md files, follow the principle of progressive disclosure:
- Include only universally-applicable instructions in CLAUDE.md
- Reference external documentation for context-specific details
- Use slash commands for specialized workflows
- Don't overload the context window with rarely-used instructions
2. Less Is More
A good CLAUDE.md should be:
- Concise: Every line should be universally applicable
- Actionable: Tell Claude HOW to do things, not just WHAT to do
- Verifiable: Include commands Claude can run to validate its work
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.
- 2mo ago First seen · 266 lines · 2,280 tokens per session scan A fdce3818e4c8
project-scaffolder CLAUDE.md is an instructions file published in the GitHub repository fltman/project-scaffolder (88 stars, last pushed 9d ago), licensed MIT. It adds 2,280 tokens to every session, about $0.0091 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 2026-08-30.
project-scaffolder CLAUDE.md compared with instructions from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| project-scaffolder CLAUDE.mdfltman/project-scaffolder | Instructions file | 88 | 9d ago | MIT | A | 2,280 | Claude Code |
| vscode buildNext.instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 9,719 | GitHub Copilot |
| next.js AGENTS.mdvercel/next.js | Instructions file | 143k | yesterday | MIT | A | 7,461 | Codex, OpenCode |
| langchain AGENTS.mdlangchain-ai/langchain | Instructions file | 149k | yesterday | MIT | A | 4,680 | Codex, OpenCode |
| vscode oss-third-party-notices.instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 5,516 | GitHub Copilot |
| vscode copilot-instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 3,093 | GitHub Copilot |
| deepseek-harness AGENTS.mddeepseek-ai/deepseek-harness | Instructions file | 274k | 2d ago | MIT | A | 4,313 | Codex, OpenCode |