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.
npx agentmods add instructions/edgeandnode/ampersend-sdk/claude-mdgit clone --depth 1 https://github.com/edgeandnode/ampersend-sdkWrote 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.
[](https://agentmods.dev/instructions/edgeandnode/ampersend-sdk/claude-md)<a href="https://agentmods.dev/instructions/edgeandnode/ampersend-sdk/claude-md"><img src="https://agentmods.dev/badge/instructions/edgeandnode/ampersend-sdk/claude-md.svg" alt="Measured on agentmods" height="20"></a>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 | $0.01633 | $0.01633 |
| Opus 5 | $0.00816 | $0.00816 |
| Sonnet 5 | $0.00327 | $0.00327 |
| Haiku 4.5 | $0.00163 | $0.00163 |
Grade A, and why
ampersend-sdk 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 3d 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.
How it starts
The opening of the file, as written. The whole thing — 238 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.
Project Overview
Multi-language SDK for integrating x402 payment capabilities into agent and LLM applications. Includes Python implementation for A2A (Agent-to-Agent) protocol and TypeScript implementation for MCP (Model Context Protocol). Both support buyer (client) and seller (server) roles with flexible payment authorization patterns.
Development Commands
Python Setup
# Install Python 3.13
uv python install 3.13
# Install dependencies including dev tools
uv sync --frozen --all-packages --group dev
TypeScript Setup
# Install dependencies
pnpm install
# Build SDK
pnpm --filter ampersend-sdk... build
Python Testing
# Run all tests
uv run -- pytest
# Run specific test file
uv run -- pytest python/ampersend-sdk/tests/unit/x402/treasurers/test_naive.py
# Run only slow tests
uv run -- pytest -m slow
TypeScript Testing
# Run all tests
pnpm --filter ampersend-sdk test
# Run specific test
pnpm --filter ampersend-sdk test middleware.test.ts
# Watch mode
pnpm --filter ampersend-sdk test --watch
Python Linting & Formatting
# Check linting (uses ruff for imports and unused imports)
uv run -- ruff check --output-format=github python
# Check formatting
uv run -- ruff format --diff python
# Apply formatting
uv run -- ruff format python
# Type checking (strict mode enabled)
uv run -- mypy python
TypeScript Linting & Formatting
# Lint
pnpm --filter ampersend-sdk lint
# Format check
pnpm --filter ampersend-sdk format
# Format fix
pnpm --filter ampersend-sdk format:fix
# Type check
pnpm --filter ampersend-sdk typecheck
Markdown Formatting
# Check Markdown formatting
pnpm md:format
# Fix Markdown formatting
pnpm md:format:fix
Lockfile
# Python lockfile
uv lock --check # Verify
uv lock # Update
# TypeScript lockfile
pnpm install --frozen-lockfile # CI mode
pnpm install # Update lockfile
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.
- 3d ago First seen · 238 lines · 1,633 tokens per session scan A 285f2253980a
ampersend-sdk CLAUDE.md is an instructions file published in the GitHub repository edgeandnode/ampersend-sdk (24 stars, last pushed 1mo ago), licensed Apache-2.0. It adds 1,633 tokens to every session, about $0.0082 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 2026-08-30.
Other instructions, from other repositories
use-agently AGENTS.md
Instructions for AgentlyHQ/use-agently, a project described as: The way AI coordinates and transacts. Routing and settlement layer for your agent economy.
agent-kernel AGENTS.md
Instructions for yaalalabs/agent-kernel, covering agents.md, two skill sets — don't confuse them, repo map, adapter architecture — stay unopinionated and setup, build, lint, test.
TradingAgents-Telegram CLAUDE.md
Instructions for IvanWng97/TradingAgents-Telegram, covering tradingagents-telegram — architecture reference, layout, architecture (for code reviewers), request lifecycle (manual /watch tap) and state ownership.
agent-kernel CLAUDE.md
Instructions for yaalalabs/agent-kernel: See AGENTS.md — it has the full guide for working on this repo (repo map, setup/lint/test commands, the dev-skills-vs-bundled-skills distinction, and conventions). Read it before making changes.
adk CLAUDE.md
Instructions for inference-gateway/adk, covering claude.md, what this repo is, commands, architecture and server (server/).
adk AGENTS.md
Instructions for inference-gateway/adk, covering inference gateway a2a adk, project overview, build, test, and development commands, generated files and code style.