What is paperclip-hub CLAUDE.md?

Repository instructions listing commands for development, testing, linting, type checking, and database work. It explains that E2E tests check a complete user flow through the application, while linting checks code style and type checking finds TypeScript type errors.

Use it to start the app, run unit or browser tests, run Playwright E2E tests, check code quality, verify types, and manage the Drizzle database schema.

It gives an agent one place to find the project's normal commands instead of guessing how to run checks. It also distinguishes browser tests, Node.js tests, migrations, and development servers.

How lacymorrow/paperclip-hub configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to lacymorrow/paperclip-hub. 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/lacymorrow/paperclip-hub/main/CLAUDE.md

Clone the repo

git clone --depth 1 https://github.com/lacymorrow/paperclip-hub

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.

README.md

[![agentmods](https://agentmods.dev/badge/instructions/lacymorrow/paperclip-hub/claude-md/github.svg)](https://agentmods.dev/instructions/lacymorrow/paperclip-hub/claude-md)

Your own site

<a href="https://agentmods.dev/instructions/lacymorrow/paperclip-hub/claude-md"><img src="https://agentmods.dev/badge/instructions/lacymorrow/paperclip-hub/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.

Your own site · 80×15

<a href="https://agentmods.dev/instructions/lacymorrow/paperclip-hub/claude-md"><img src="https://agentmods.dev/badge/instructions/lacymorrow/paperclip-hub/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 2,604 This file is loaded in full into every session.

When invoked 2,604 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.

Model	Per session	Once invoked
Fable 5.1	$0.02604	$0.02604
Opus 5.5	$0.01042	$0.01042
Sonnet 5.5	$0.00521	$0.00521
Haiku 4.5	$0.00260	$0.00260

Measured yesterday against content hash 196746f1beec, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

paperclip-hub 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 yesterday.

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 · 308 lines

How it starts

The opening of the file, as written. The whole thing — 308 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 (claude.ai/code) when working with code in this repository.

Essential Development Commands

Development Server

bun dev             # Start development server with Turbo
bun run dev:legacy  # Start development server without Turbo
bun run dev:https   # Start development server with HTTPS
bun run dev:all     # Start both dev server and workers

Testing

bun run test           # Run all tests
bun run test:watch     # Run tests in watch mode
bun run test:coverage  # Run tests with coverage
bun run test:browser   # Run browser tests with Vitest
bun run test:node      # Run Node.js tests
bun run test:e2e       # Run Playwright E2E tests

Linting & Type Checking

bun run lint           # Run all linting (Biome, ESLint, Prettier)
bun run lint:fix       # Fix all linting issues
bun run typecheck      # Run TypeScript type checking

Database Operations

bun run db:generate    # Generate Drizzle schema
bun run db:migrate     # Run database migrations
bun run db:push        # Push schema to database
bun run db:studio      # Open Drizzle Studio
bun run db:reset       # Reset database (drop, generate, migrate, push)
bun run db:seed        # Seed database with test data

Build & Deployment

bun run build          # Build for production
bun run build:vercel   # Build with increased memory (8GB heap)
bun start              # Start production server
bun run analyze        # Analyze bundle size

Registry

bun run build:registry # Build shadcn registry (npx shadcn build)

Source: registry.json (project root). Output: public/r/*.json. See docs/features/registry.mdx for full documentation.

Architecture Overview

Core Framework Stack

Next.js 16 with App Router - Full-stack React framework
TypeScript - Type safety throughout
Tailwind CSS - Utility-first styling
Shadcn/UI - Component library built on Radix UI
Drizzle ORM - Type-safe database operations
Bun - Package manager

Read the full file on GitHub · 308 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.

yesterday First seen · 308 lines · 2,604 tokens per session scan A 196746f1beec

Subscribe to this mod's changes

paperclip-hub CLAUDE.md is an instructions file published in the GitHub repository lacymorrow/paperclip-hub (15 stars, last pushed yesterday), licensed MIT. It adds 2,604 tokens to every session, about $0.0104 per session on Opus 5.5. 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 2026-11-10.

DevOps and cloud E2E testing Testing ai-agents drizzle-orm nextjs paperclip payload-cms plugin-registry

paperclip-hub CLAUDE.md next to 6 instructions from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
paperclip-hub CLAUDE.mdlacymorrow/paperclip-hub	Instructions file	15	yesterday	MIT	A	2,604	Claude Code
vscode buildNext.instructions.mdmicrosoft/vscode	Instructions file	195k	today	MIT	A	9,719	GitHub Copilot
next.js AGENTS.mdvercel/next.js	Instructions file	143k	today	MIT	A	7,461	Codex, OpenCode
vscode oss-third-party-notices.instructions.mdmicrosoft/vscode	Instructions file	195k	today	MIT	A	5,685	GitHub Copilot
langchain AGENTS.mdlangchain-ai/langchain	Instructions file	149k	yesterday	MIT	A	4,680	Codex, OpenCode
vscode copilot-instructions.mdmicrosoft/vscode	Instructions file	195k	today	MIT	A	3,093	GitHub Copilot
vscode model-prompts.instructions.mdmicrosoft/vscode	Instructions file	195k	today	MIT	A	2,022	GitHub Copilot

paperclip-hub: Instructions file for Claude Code