CLAUDE.mdA
CLAUDE.md from arach/arc is a CLAUDE.md file: the standing instructions Claude Code reads in that repo.
mdr add arach/arc/CLAUDE.md@git:20261019.8bcf74ePins git:20261019.8bcf74e in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 14 of 14 checks passed
- Kind
- CLAUDE.md file
- Repository
- arach/arc
- Path
CLAUDE.md- Versions recorded
- 7
- Latest version
- git:20261019.8bcf74e, committed Oct 19, 2026
- First version recorded
- Aug 15, 2026
- Size
- 32,890 bytes
- Repository stars
- 13
- 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
# CLAUDE.md
This file provides guidance to Claude Code when working with this repository.
## Project Overview
**Arc** is a visual diagram editor for creating architecture diagrams. It provides a drag-and-drop interface for designing system architectures that can be exported to Talkie landing pages.
## Tech Stack
- **React 19** - UI framework
- **Vite 7** - Build tool and dev server
- **TailwindCSS 4** - Utility-first styling
- **Lucide React** - SVG icon library
- **TypeScript** - Full type support
## Build Commands
```bash
bun run dev # Start dev server with HMR
bun run build # Production build to dist/
bun run preview # Preview production build
bun run lint # Run ESLint
```
`lint` covers `.ts`/`.tsx` (via `typescript-eslint`) and ignores build output —
it used to match only `**/*.{js,jsx}`, so it linted `dist-iso/` and `ds-bundle/`
and reported 500+ "errors" in minified vendor code while never looking at the
source. Rules that are advisory rather than correctness
(`react-refresh/only-export-components`, `react-hooks/set-state-in-effect`,
`static-components`, `refs`) are **warnings**, so a real error in a run still
…Read the whole file at its exact version.
How to install
mdr add arach/arc/CLAUDE.md@sha256:7319244e5e0aa599The line at the top of this page pins the label git:20261019.8bcf74e, 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.
[](https://markdownregistry.com/a/art_yiaixwyzny2njtkh)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 7 versions of this file, between Aug 15, 2026 and Oct 19, 2026, about one every 11 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261019.8bcf74e latest | 2026-10-19 | 8bcf74e | 32,890 B | A | view · diff |
| git:20261018.adefe5b | 2026-10-18 | adefe5b | 32,886 B | A | view · diff |
| git:20260922.b0d7494 | 2026-09-22 | b0d7494 | 32,497 B | A | view · diff |
| git:20260816.acbf573 | 2026-08-16 | acbf573 | 30,128 B | A | view · diff |
| git:20260815.797e932 | 2026-08-15 | 797e932 | 28,236 B | A | view · diff |
| git:20260815.bfbabe8 | 2026-08-15 | bfbabe8 | 22,229 B | A | view · diff |
| git:20260815.aaa1e0f | 2026-08-15 | aaa1e0f | 21,383 B | A | view |
Audit of the latest version
- pass: Size between 200 bytes and 200 KB (32890 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 link to a raw IP address
- pass: No script tag
Source
arach/arc · 13 stars · license MIT · pushed 2026-10-20 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_yiaixwyzny2njtkh GET https://markdownregistry.com/api/v1/resolve?ref=arach/arc/CLAUDE.md GET https://markdownregistry.com/api/v1/blob/7319244e5e0aa599c1faf6b7879fe0669830d796072c3f23fc1fe57da0d09a06
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Guides: what a CLAUDE.md file is · keeping AGENTS.md and CLAUDE.md in sync · which agent file does what.