CLAUDE.mdB

CLAUDE.md from librefang/librefang is a CLAUDE.md file: the standing instructions Claude Code reads in that repo.

Install it, pinned

mdr add librefang/librefang/CLAUDE.md@git:20260827.61e314c

Pins git:20260827.61e314c in mdr.lock. Pin the fingerprint instead.

Audit grade: B, 13 of 14 checks passed
Kind: CLAUDE.md file
Repository: librefang/librefang
Path: CLAUDE.md
Versions recorded: 5
Latest version: git:20260827.61e314c, committed Aug 27, 2026
First version recorded: Aug 12, 2026
Size: 27,053 bytes
Repository stars: 392
License: MIT

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

# LibreFang — Agent Instructions

## ⚠️ Before any work: verify you are in a worktree, not the main tree

The very first action in any task that will edit files **must** be:

```bash
test -d "$(git rev-parse --show-toplevel)/.git" && echo main || echo linked
```

- prints `main` → you are in the **main worktree**. **Stop.** Run `git worktree add /tmp/librefang-<feature> -b <feature-branch> origin/main` and continue all work from that path.
- prints `linked` → you are in a **linked worktree**. Continue.

Git stores the main worktree's `.git` as a directory and a linked worktree's `.git` as a text file, so the directory test is true exactly in the main worktree.
Do not substitute `git rev-parse --git-dir` (path-shaped output, varies with cwd) or path-matching against `pwd` (every clone lives somewhere different).

### Safety hooks — what will stop you

`.claude/hooks/` (Claude Code PreToolUse / SessionStart) and `scripts/hooks/` (version-controlled git hooks) enforce this contract in two independent layers.
Full enumeration: `docs/development/ai-safety-hooks.md`.
The short list of things that get blocked:

- Editing files or running mutating git commands in the **main worktree**.
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint

mdr add librefang/librefang/CLAUDE.md@sha256:2ee31b3a24bb66a1

The line at the top of this page pins the label git:20260827.61e314c, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

[![mdr](https://markdownregistry.com/badge/art_qrepmino4ewg75cx.svg)](https://markdownregistry.com/a/art_qrepmino4ewg75cx)

4 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 5 versions of this file, between Aug 12, 2026 and Aug 27, 2026, about one every 4 days.

version	committed	commit	size	audit
git:20260827.61e314c latest	2026-08-27	61e314c	27,053 B	B	view · diff
git:20260826.15ebc02	2026-08-26	15ebc02	25,784 B	B	view · diff
git:20260824.fadc424	2026-08-24	fadc424	24,098 B	B	view · diff
git:20260818.67333f7	2026-08-18	67333f7	23,109 B	B	view · diff
git:20260812.ccabd9c	2026-08-12	ccabd9c	44,971 B	B	view

Audit of the latest version

B 13 of 14 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.

fail: No link to a raw IP address (matched: http://127.0.0.1:4545)
pass: Size between 200 bytes and 200 KB (27053 bytes)
pass: No zero-width or bidi control characters
pass: No instruction hidden inside an HTML comment
pass: No link to an exfiltration or paste host
pass: No credential-shaped string
pass: No instruction to send local credentials anywhere
pass: No text hidden with inline styles
pass: No prompt-injection phrasing
pass: No curl or wget piped into a shell
pass: No recursive delete of root, home or parent
pass: No instruction to read or print local credentials
pass: No base64 blob over 200 characters
pass: No script tag

Starting a new one? Use a template for CLAUDE.md on mdpantry, which passes every one of these checks and says what to change in it.

Source

GitHub

librefang/librefang · 392 stars · license MIT · pushed 2026-10-31 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_qrepmino4ewg75cx
GET https://markdownregistry.com/api/v1/resolve?ref=librefang/librefang/CLAUDE.md
GET https://markdownregistry.com/api/v1/blob/2ee31b3a24bb66a1b7e4ac09d978cf46abc360dbc2eeb9a85ce1832c7d7c9f84

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: what a CLAUDE.md file is · keeping AGENTS.md and CLAUDE.md in sync · which agent file does what.