Borrowing it
Nothing to install: this file belongs to scosman/vibe-crafting. 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/scosman/vibe-crafting/main/CLAUDE.mdgit clone --depth 1 https://github.com/scosman/vibe-craftingWrote 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/scosman/vibe-crafting/claude-md)<a href="https://agentmods.dev/instructions/scosman/vibe-crafting/claude-md"><img src="https://agentmods.dev/badge/instructions/scosman/vibe-crafting/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/scosman/vibe-crafting/claude-md"><img src="https://agentmods.dev/badge/instructions/scosman/vibe-crafting/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 | $0.00333 | $0.00333 |
| Opus 5.5 | $0.00133 | $0.00133 |
| Sonnet 5.5 | $0.00067 | $0.00067 |
| Haiku 4.5 | $0.00033 | $0.00033 |
Grade A, and why
vibe-crafting 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.
What it actually says
Vibe Crafting Blog Post
Blog-post-as-repo about "Vibe Crafting" — a deliberate process for building production-quality apps with AI. Each section is drafted as its own file, then assembled into a final README.
Key Files
specs/planning/phase_instructions.md— How to write a "phase" of the blog. Start here.specs/planning/implementation_plan.md— Build checklist (track progress here)specs/planning/outline.md— Full outline with structure and bullet points for every sectionspecs/planning/needed_prompts.md— Prompt files that need to be collected and linked
Project Structure
specs/sections/— Individual section drafts. These get concatenated into the finalREADME.md.specs/project_overview/— Raw notes and ideas (source material, not published)specs/planning/— Outline, implementation plan, phase instructionsprompts/— Real prompt files from the project being described. Referenced and linked from sections.
Task
This is a writing project, not a coding project. You are drafting blog sections as markdown files. Follow the phase instructions for the full workflow.
Style
- Conversational, honest, technical but accessible. First person.
- Not preachy or salesy. Show, don't tell — use concrete examples over generic claims.
- Sections should read well standalone and as part of the assembled whole.
- Link to example prompt files in
prompts/where the it calls for it.
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 · 29 lines · 333 tokens per session scan A 28e6c8fdbaaa
vibe-crafting CLAUDE.md is an instructions file published in the GitHub repository scosman/vibe-crafting (79 stars, last pushed 1mo ago), licensed MIT. It adds 333 tokens to every session, about $0.0013 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.
vibe-crafting CLAUDE.md compared with instructions from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| vibe-crafting CLAUDE.mdscosman/vibe-crafting | Instructions file | 79 | 1mo ago | MIT | A | 333 | Claude Code |
| vscode buildNext.instructions.mdmicrosoft/vscode | Instructions file | 195k | today | MIT | A | 9,719 | GitHub Copilot |
| vscode oss-third-party-notices.instructions.mdmicrosoft/vscode | Instructions file | 195k | today | MIT | A | 5,516 | GitHub Copilot |
| next.js AGENTS.mdvercel/next.js | Instructions file | 143k | today | MIT | A | 7,461 | Codex, OpenCode |
| langchain AGENTS.mdlangchain-ai/langchain | Instructions file | 149k | today | MIT | A | 4,680 | Codex, OpenCode |
| vscode copilot-instructions.mdmicrosoft/vscode | Instructions file | 195k | today | MIT | A | 3,093 | GitHub Copilot |
| vscode model-prompts.instructions.mdmicrosoft/vscode | Instructions file | 195k | today | MIT | A | 2,022 | GitHub Copilot |