scuttlepay CLAUDE.md

scuttlepay CLAUDE.md is an instructions file for coding agents from jarrodwatts/scuttlepay. It costs 1,066 tokens per session, scanned A, original, MIT.

A set of coding instructions for ScuttlePay, a service that lets AI agents make controlled USDC purchases from Shopify stores and settle payments on a blockchain. It covers the Next.js app, database, commands, and end-to-end tests.

In plain words
What is it for?
Use it when changing the web app, shared packages, payment flow, PostgreSQL database, migrations, or end-to-end tests.
Why use it?
It gives coding agents the project's architecture, development commands, and database procedures in one place.

Instructions file

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add instructions/jarrodwatts/scuttlepay/claude-md
Clone the repo
git clone --depth 1 https://github.com/jarrodwatts/scuttlepay

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 scuttlepay CLAUDE.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/jarrodwatts/scuttlepay/claude-md.svg)](https://agentmods.dev/instructions/jarrodwatts/scuttlepay/claude-md)
Your own site
<a href="https://agentmods.dev/instructions/jarrodwatts/scuttlepay/claude-md"><img src="https://agentmods.dev/badge/instructions/jarrodwatts/scuttlepay/claude-md.svg" alt="Measured on agentmods" height="20"></a>
Per session 1,066 This file is loaded in full into every session.
When invoked 1,066 The same file — it is already loaded in full.
Security scan A 0 findings. Scan, not verified.
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 $0.01066 $0.01066
Opus 5 $0.00533 $0.00533
Sonnet 5 $0.00213 $0.00213
Haiku 4.5 $0.00107 $0.00107

Measured 5d ago against content hash c2a8fe99a313, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

scuttlepay 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 5d 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 · 104 lines

How it starts

The opening of the file, as written. The whole thing — 104 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.

What is ScuttlePay

Wallet-as-a-service for autonomous AI agents. Agents get API keys with spending policies, execute USDC purchases against Shopify storefronts, and settle payments on-chain via the x402 protocol (EIP-712/EIP-3009 TransferWithAuthorization).

Commands

pnpm dev              # Next.js dev server (Turbopack)
pnpm build            # Production build
pnpm check            # Lint + typecheck in one shot
pnpm lint             # ESLint only
pnpm typecheck        # tsc --noEmit only
pnpm format:check     # Prettier check
pnpm format:write     # Prettier fix

# Database (Drizzle + PostgreSQL)
pnpm db:generate      # Generate migration from schema changes
pnpm db:migrate       # Run pending migrations
pnpm db:push          # Push schema directly (dev only)
pnpm db:seed          # Seed database (reads .env.local)
pnpm db:studio        # Drizzle Studio GUI

# E2E
pnpm e2e              # Run e2e tests (reads .env)

Architecture

Monorepo (pnpm workspaces): root Next.js app + packages/shared + packages/mcp.

Stack

  • Next.js 15 (App Router) + React 19, Tailwind 4, shadcn/ui (Radix)
  • tRPC 11 + TanStack Query 5 for data fetching
  • Drizzle ORM + PostgreSQL (Vercel Postgres / Neon)
  • thirdweb SDK v5 for wallet management and auth (JWT from wallet signatures)
  • Zod for all input validation (shared schemas in packages/shared)

Path alias

~/*./src/*

Layered backend

src/server/api/routers/   → tRPC routers (thin: validate input, call service, map errors)
src/server/services/      → Domain logic (purchase flow, spending evaluation, payment signing)
src/server/lib/           → Infrastructure (thirdweb client, Shopify GraphQL, API key validation, USDC math)
src/server/db/schema/     → Drizzle table definitions (all prefixed scuttlepay_*)
src/server/auth/          → thirdweb Auth setup + cached user resolution

Read the full file on GitHub · 104 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. 5d ago First seen · 104 lines · 1,066 tokens per session scan A c2a8fe99a313

Subscribe to this mod's changes

scuttlepay CLAUDE.md is an instructions file published in the GitHub repository jarrodwatts/scuttlepay (6 stars, last pushed 6mo ago), licensed MIT. It adds 1,066 tokens to every session, about $0.0053 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 2026-08-31.