artifacty: Instructions file for Claude Code

CLAUDE.md

artifacty CLAUDE.md is an instructions file for Claude Code from raeseoklee/artifacty. It costs 890 tokens per session, scanned A, original, MIT.

Repository-specific instructions for Claude Code when working on Artifacty, a local service for sharing work products between AI agents. They cover commands, code structure, storage, and release checks.

In plain words
What is it for?
Use them to run tests and checks, understand the HTTP, command-line, and MCP parts, and make changes that fit Artifacty’s artifact-sharing model.
Why use it?
They reduce guesswork when changing the repository by documenting its design, conventions, and required checks.

Instructions file for Claude Code

Written for Claude Code: the file is CLAUDE.md. Also seen: mentions CLAUDE.md; mentions Claude Code; mentions AGENTS.md.

This is raeseoklee/artifacty's own configuration. It tells Claude Code how to work on artifacty 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 artifacty configures →

Reuse

Borrowing it

Nothing to install: this file belongs to raeseoklee/artifacty. 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/raeseoklee/artifacty/main/CLAUDE.md
Clone the repo
git clone --depth 1 https://github.com/raeseoklee/artifacty

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 artifacty CLAUDE.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/raeseoklee/artifacty/claude-md.svg)](https://agentmods.dev/instructions/raeseoklee/artifacty/claude-md)
Your own site
<a href="https://agentmods.dev/instructions/raeseoklee/artifacty/claude-md"><img src="https://agentmods.dev/badge/instructions/raeseoklee/artifacty/claude-md.svg" alt="Measured on agentmods" height="20"></a>
Per session 890 This file is loaded in full into every session.
When invoked 890 The same file — it is already loaded in full.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original 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 $0.00890 $0.00890
Opus 5 $0.00445 $0.00445
Sonnet 5 $0.00178 $0.00178
Haiku 4.5 $0.00089 $0.00089

Measured 4d ago against content hash 49eb4a0a9904, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

artifacty 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 4d 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.

CLAUDE.md · 65 lines

How it starts

The opening of the file, as written. The whole thing — 65 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 when working with this repository.

Artifacty is a local, agent-to-agent artifact exchange for LLM workflows. One agent publishes an artifact once; others list, read, import, update, and continue from it without copying content through chat. It exposes one shared store over HTTP/browser, CLI, and MCP stdio surfaces.

See AGENTS.md for repository structure, coding-style conventions, and commit/PR guidelines.

Commands

  • npm test — run all tests with node --test.
  • npm run lint — syntax-check source and tests with node --check.
  • npm run smoke — start a temporary token-protected server and verify core HTTP, backup, and MCP behavior.
  • npm run release:check — run lint, tests, and smoke together.
  • npm start — run the HTTP dashboard. It prefers 127.0.0.1:8787 and falls back when the default port is busy.
  • node src/mcp-server.js or npm run mcp — run the MCP stdio server.
  • node src/cli.js help — inspect CLI usage.

Run npm run release:check before claiming a release-ready change. There is no build step; this is plain ESM run directly by Node >=22.5.

Architecture

Shared Library Funnel

The three entry points are thin adapters:

  • src/server.js handles HTTP/browser routes and JSON API.
  • src/cli.js handles command-line workflows.
  • src/mcp-server.js handles MCP JSON-RPC over stdio.

Shared behavior belongs in src/lib/*. Storage logic lives in src/lib/storage.js, conversion logic in src/lib/converters.js, installer logic in src/lib/installer.js, security checks in src/lib/security.js, and server URL discovery in src/lib/server-state.js.

Storage Model

The store lives at ARTIFACTY_HOME or ~/.artifacty by default.

  • SQLite metadata is stored in artifacty.sqlite.
  • Immutable version files are stored under artifacts/<id>/v<n>.<ext>.
  • server.json records the currently running browser server URL so CLI and MCP responses keep working when the default port falls back.
  • Legacy index.json stores migrate automatically on first access.

Read the full file on GitHub · 65 lines

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. 4d ago Changed · +37 tokens per session 49eb4a0a9904
  2. 7d ago First seen · 65 lines · 853 tokens per session scan A 8354113fcd8c

Subscribe to this mod's changes

artifacty CLAUDE.md is an instructions file published in the GitHub repository raeseoklee/artifacty (0 stars, last pushed 4d ago), licensed MIT. It adds 890 tokens to every session, about $0.0044 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 2026-09-01.

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