Borrowing it
Nothing to install: this file belongs to AtmaticAI/agent-tools. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/AtmaticAI/agent-tools/main/AGENTS.mdgit clone --depth 1 https://github.com/AtmaticAI/agent-toolsWrote 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/atmaticai/agent-tools/agents-md)<a href="https://agentmods.dev/instructions/atmaticai/agent-tools/agents-md"><img src="https://agentmods.dev/badge/instructions/atmaticai/agent-tools/agents-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.
<a href="https://agentmods.dev/instructions/atmaticai/agent-tools/agents-md"><img src="https://agentmods.dev/badge/instructions/atmaticai/agent-tools/agents-md.svg" alt="Reviewed on agentmods" width="80" 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 5.1 | $0.02518 | $0.02518 |
| Opus 5.5 | $0.01007 | $0.01007 |
| Sonnet 5.5 | $0.00504 | $0.00504 |
| Haiku 4.5 | $0.00252 | $0.00252 |
Grade A, and why
agent-tools AGENTS.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 2mo 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 — 208 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
Agent Tools is an agent-driven data transformation platform for MCP (Model Context Protocol) and A2A (Agent-to-Agent) systems. It provides deterministic tools for transforming, formatting, and inspecting structured data across 18 tool domains: JSON, CSV, PDF, XML, Excel, Image, Markdown, Archive, Regex, Diff, SQL, Crypto, DateTime, Text, Math, Color, Physics, and Structural Engineering. The platform also includes an AI Chat interface that allows users to interact with all tools through natural language via HuggingFace-hosted LLMs.
Philosophy: "LLMs think. Agent Tools executes." - provides the authoritative execution layer for agents requiring strict correctness and repeatability.
Commands
# Development
pnpm install # Install dependencies
pnpm dev # Start all services (web + MCP server)
pnpm dev:web # Start Next.js web app only (port 3000)
pnpm dev:mcp # Start MCP server only
# Building
pnpm build # Build all packages
pnpm build:web # Build web app only
pnpm build:mcp # Build MCP server only
# Testing
pnpm test # Run all tests (vitest)
pnpm --filter @atmaticai/agent-tools test # Run core package tests only
pnpm --filter @atmaticai/agent-tools test # Run MCP server tests only
cd packages/agent-tools && pnpm test:watch # Watch mode for a specific package
# Code Quality
pnpm lint # ESLint across all packages
pnpm typecheck # TypeScript type checking
pnpm format # Prettier formatting
pnpm format:check # Verify formatting
Architecture
Three-Layer Design
┌─────────────────────────────────────────────────────────────┐
│ UI Layer (apps/web) │
│ Next.js 15 App Router, React 19, shadcn/ui, Zustand │
├─────────────────────────────────────────────────────────────┤
│ packages/agent-tools │
│ ├── MCP server (stdio/sse/http) │
│ ├── A2A agent (Agent-to-Agent protocol) │
│ └── apps/web/app/api/* (REST endpoints) │
├─────────────────────────────────────────────────────────────┤
│ Core Layer (packages/agent-tools/src/*) │
│ Business logic: json/, csv/, pdf/, xml/, excel/, image/, │
│ markdown/, archive/, regex/, diff/, sql/, crypto/, │
│ datetime/, text/, math/, color/, physics/, structural/ │
└─────────────────────────────────────────────────────────────┘
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.
- 2mo ago First seen · 208 lines · 2,518 tokens per session scan A b74736688a22
agent-tools AGENTS.md is an instructions file published in the GitHub repository AtmaticAI/agent-tools (19 stars, last pushed 9mo ago), licensed Apache-2.0. It adds 2,518 tokens to every session, about $0.0101 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 2026-08-30.
agent-tools AGENTS.md compared with instructions from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| agent-tools AGENTS.mdAtmaticAI/agent-tools | Instructions file | 19 | 9mo ago | Apache-2.0 | A | 2,518 | Codex, OpenCode |
| vscode buildNext.instructions.mdmicrosoft/vscode | Instructions file | 195k | today | MIT | A | 9,719 | GitHub Copilot |
| vscode oss-third-party-notices.instructions.mdmicrosoft/vscode | Instructions file | 195k | today | MIT | A | 5,516 | GitHub Copilot |
| next.js AGENTS.mdvercel/next.js | Instructions file | 143k | today | MIT | A | 7,461 | Codex, OpenCode |
| langchain AGENTS.mdlangchain-ai/langchain | Instructions file | 149k | today | 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 |