Borrowing it
Nothing to install: this file belongs to mikestangdevs/craft-skills. 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/mikestangdevs/craft-skills/main/CLAUDE.mdgit clone --depth 1 https://github.com/mikestangdevs/craft-skillsWrote 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/mikestangdevs/craft-skills/claude-md)<a href="https://agentmods.dev/instructions/mikestangdevs/craft-skills/claude-md"><img src="https://agentmods.dev/badge/instructions/mikestangdevs/craft-skills/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 | $0.01702 | $0.01702 |
| Opus 5 | $0.00851 | $0.00851 |
| Sonnet 5 | $0.00340 | $0.00340 |
| Haiku 4.5 | $0.00170 | $0.00170 |
Grade A, and why
craft-skills 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 7d 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 — 81 lines — stays where its author put it; the contents beside it link to each section on GitHub.
CLAUDE.md
This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
What this repo is
craft-skills is a Claude Code plugin: a curated collection of agent Skills, not a runnable application. There is no source to compile and no runtime — each skill is a Markdown file (SKILL.md) of instructions an agent loads on demand. "Building" here means keeping the two manifests and the skill files mutually consistent and passing the official plugin validator.
The thesis (see README.md): skills for "code you'll have to live with" — targeting legibility and restraint, the parts of code quality agents are worst at, deliberately not the typing/refactor lane.
Commands
# Validate the plugin + marketplace manifests (the closest thing to a build/test)
claude plugin validate .
There is no test runner, linter, or build step. The validator checks .claude-plugin/marketplace.json; for the plugin itself, correctness is verified by the consistency invariants below.
Architecture
Two manifests in .claude-plugin/ and one directory of skills:
.claude-plugin/plugin.json— the plugin manifest. Theskillsarray lists each skill by its individual directory path (e.g../skills/craft/explain-back), not a parent dir. This explicit form is valid and is how skills get registered; a skill that isn't in this array won't load..claude-plugin/marketplace.json— the marketplace manifest so/plugin marketplace add mikestangdevs/craft-skillsworks. It references this same repo as a single plugin via"source": "./".skills/<bucket>/<name>/SKILL.md— one skill per directory. Buckets (craft/,setup/) are organizational only; Claude Code invokes a skill by its leaf directory name regardless of bucket.
Bucket organization & governance
Skills live in buckets under skills/. Buckets are one of two kinds:
- Shipped buckets (currently
craft/,setup/) — skills that are part of the published plugin. Every skill in a shipped bucket must be referenced in both the top-levelREADME.mdand.claude-plugin/plugin.json. - Staging buckets (
in-progress/,deprecated/,personal/) — not created yet; add one only when you actually have a skill to park there. Skills in a staging bucket must appear in neitherREADME.mdnorplugin.json— staging lets you draft or retire skills in-repo without shipping them.
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.
- 7d ago First seen · 81 lines · 1,702 tokens per session scan A 3e3fc42b09ce
craft-skills CLAUDE.md is an instructions file published in the GitHub repository mikestangdevs/craft-skills (4 stars, last pushed 2mo ago), licensed MIT. It adds 1,702 tokens to every session, about $0.0085 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.
Other instructions, from other repositories
codex AGENTS.md
AGENTS.md instructions for openai/codex, covering rust/codex-rs, the codex-core crate, code review rules, crate api surface and model visible context.
vscode buildNext.instructions.md
Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).
next.js AGENTS.md
AGENTS.md instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.
langchain AGENTS.md
AGENTS.md instructions for langchain-ai/langchain, covering global development guidelines for the langchain monorepo, corridor security analysis, project architecture and context, monorepo structure and development tools & commands.
vscode oss-third-party-notices.instructions.md
Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, applying the notice (cutover) and fallback chain (never fail the build).
spec-kit AGENTS.md
AGENTS.md instructions for github/spec-kit, covering agents.md, about spec kit and specify, quickstart — add a new integration in 5 steps, integration architecture and integrationmanifest — file tracking.