AGENTS.md@docsB

This file is byte-identical to the first copy the registry indexed. Same content hash, so the same checks give both the same grade.

AGENTS.md@docs from hudsonkit/arc is an AGENTS.md file: the standing instructions coding agents read in that repo.

Install it, pinned
mdr add hudsonkit/arc/docs/AGENTS.md@git:20261019.8bcf74e

Pins git:20261019.8bcf74e in mdr.lock. Pin the fingerprint instead.

Audit grade
B, 13 of 14 checks passed
Kind
AGENTS.md file
Repository
hudsonkit/arc
Path
docs/AGENTS.md
Versions recorded
5
Latest version
git:20261019.8bcf74e, committed Oct 19, 2026
First version recorded
Sep 22, 2026
Size
10,439 bytes
Repository stars
13
License
MIT

Agent-friendly documentation for AI coding assistants.

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

# arc

> Diagrams as Code - Visual editor for architecture diagrams that live in your codebase

## Critical Context

**IMPORTANT:** Read these rules before making any changes:

- Arc exports four npm packages: @hudsonkit/arc (full editor), @hudsonkit/arc-viewer (lightweight viewer), @hudsonkit/arc-iso (isometric renderer), and @hudsonkit/arc-mcp (MCP server)
- Diagrams are stored as declarative JSON/TypeScript configs, not binary files
- The editor uses useReducer + Context for state management (EditorProvider)
- Never modify diagram configs without understanding the schema in src/types/
- Exports should be deterministic - same input = same output for diffability

## Project Structure

| Component | Path |
|-----------|------|
| Editor | src/components/editor/ |
| Isometric | src/iso/ |
| Landing Page | src/components/LandingPage.tsx |
| Documentation | src/components/docs/ |
| Utilities | src/utils/ |
| Types | src/types/ |

## Quick Navigation

- Entry point: `src/main.tsx`
- Routes: `src/App.tsx`
- Editor shell: `src/apps/arc-editor/createArcApp.tsx`
- Canvas + reducer: `src/components/editor/`
- Diagram schema: `src/types/diagram.ts`
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add hudsonkit/arc/docs/AGENTS.md@sha256:c4c8a32e3c06b6dd

The 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.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_eevqhus4jkytfgfb.svg)](https://markdownregistry.com/a/art_eevqhus4jkytfgfb)

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

Versions

The registry has recorded 5 versions of this file, between Sep 22, 2026 and Oct 19, 2026, about one every 7 days.

versioncommittedcommitsizeaudit
git:20261019.8bcf74e latest2026-10-19 8bcf74e 10,439 BB view · diff
git:20261018.09272e12026-10-18 09272e1 10,351 BB view · diff
git:20260926.61cad422026-09-26 61cad42 10,347 BB view · diff
git:20260923.c89c6912026-09-23 c89c691 9,577 BB view · diff
git:20260922.b0d74942026-09-22 b0d7494 9,426 BB 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 script tag (matched: <script)
  • pass: Size between 200 bytes and 200 KB (10439 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

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

Source

GitHub

hudsonkit/arc · 13 stars · license MIT · pushed 2026-10-20 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_eevqhus4jkytfgfb
GET https://markdownregistry.com/api/v1/resolve?ref=hudsonkit/arc/docs/AGENTS.md
GET https://markdownregistry.com/api/v1/blob/c4c8a32e3c06b6ddf6834ce5fbab7c1d5fee1fd06bb5a624133dc984d0a30a34

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: how to write a good AGENTS.md · AGENTS.md vs CLAUDE.md · which agent file does what.

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