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mdriver: Instructions file for Claude Code

CLAUDE.md

mdriver CLAUDE.md is an instructions file for Claude Code from llimllib/mdriver. It costs 3,431 tokens per session, scanned C, original, no licence file.

Repository-specific instructions for Claude Code covering mdriver, its purpose, code-quality expectations, and checks required before committing changes.

In plain words
What is it for?
Useful when developing mdriver, reviewing code, or preparing a commit.
Why use it?
They help the assistant understand the project and follow its required quality checks before a change is committed.

Instructions file for Claude Code

Written for Claude Code: the file is CLAUDE.md.

This is llimllib/mdriver's own configuration. It tells Claude Code how to work on mdriver itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything mdriver configures →

not rated 26repo 1mo ago C scan 3,431 tokens no licence
View source ↗ llimllib/mdriver llimllib.github.io
Reuse

Borrowing it

Nothing to install: this file belongs to llimllib/mdriver. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/llimllib/mdriver/main/CLAUDE.md
Clone the repo
git clone --depth 1 https://github.com/llimllib/mdriver

Made for: Claude Code.

Wrote 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.

agentmods badge for mdriver CLAUDE.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/llimllib/mdriver/claude-md/github.svg)](https://agentmods.dev/instructions/llimllib/mdriver/claude-md)
Your own site
<a href="https://agentmods.dev/instructions/llimllib/mdriver/claude-md"><img src="https://agentmods.dev/badge/instructions/llimllib/mdriver/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.

agentmods 80×15 button for mdriver CLAUDE.md

Your own site · 80×15
<a href="https://agentmods.dev/instructions/llimllib/mdriver/claude-md"><img src="https://agentmods.dev/badge/instructions/llimllib/mdriver/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 3,431 This file is loaded in full into every session.
When invoked 3,431 The same file — it is already loaded in full.
Security scan C 1 finding. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown 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 $0.03431 $0.03431
Opus 5.5 $0.01372 $0.01372
Sonnet 5.5 $0.00686 $0.00686
Haiku 4.5 $0.00343 $0.00343

Measured 2mo ago against content hash 2243495604a2, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade C, and why

mdriver CLAUDE.md scanned grade C with 1 finding 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.

Reaches for credential fileshighPrivilege escalation

SSH keys, cloud credentials, git-credentials, .npmrc, /etc/shadow: reading these is how a config file becomes a credential leak.

This repo sets `commit.gpgsign=true` with an SSH key at `~/.ssh/id_ed25519.pub`.
CLAUDE.md · 435 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

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 · 435 lines · 3,431 tokens per session scan C 2243495604a2

Subscribe to this mod's changes

mdriver CLAUDE.md is an instructions file published in the GitHub repository llimllib/mdriver (26 stars, last pushed 1mo ago), with no licence file. It adds 3,431 tokens to every session, about $0.0137 per session on Opus 5.5. A static security scan graded it C with 1 finding (reaches for credential files). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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