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/datachain-ai/datachain/claude-mdgit clone --depth 1 https://github.com/datachain-ai/datachainWrote 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/datachain-ai/datachain/claude-md)<a href="https://agentmods.dev/instructions/datachain-ai/datachain/claude-md"><img src="https://agentmods.dev/badge/instructions/datachain-ai/datachain/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 | $0.00087 | $0.00087 |
| Opus 5 | $0.00044 | $0.00044 |
| Sonnet 5 | $0.00017 | $0.00017 |
| Haiku 4.5 | $0.00009 | $0.00009 |
Grade A, and why
datachain 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.
What it actually says
CLAUDE.md
Always read and follow AGENT.md — unconditionally, in full. It holds the general, durable insights about this product (architecture, warehouse backends, cross-cutting design principles). Treat them as binding context for any change here.
Keep general product insights in AGENT.md (not here); this file is only for
Claude-specific notes.
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.
- 4d ago First seen · 10 lines · 87 tokens per session scan A 0f3f2da7dc48
datachain CLAUDE.md is an instructions file published in the GitHub repository datachain-ai/datachain (2,816 stars, last pushed today), licensed Apache-2.0. It adds 87 tokens to every session, about $0.0004 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
OpenContracts CLAUDE.md
Claude Code instructions for Open-Source-Legal/OpenContracts, covering claude.md, project overview, baseline commit rules, essential commands and backend (django).
cookiecutter-mlops-package AGENTS.md
Instructions for fmind/cookiecutter-mlops-package, covering agents.md, project overview, setup & core commands, definition of done and conventions & idioms.
sprawling CLAUDE.md
Instructions for 2youg1/sprawling: See AGENTS.md. It is the whole instruction set for this repository — the loop, what to read first, the five steps of one change, the rules a machine holds, and the language and commit conventions.
hyper-waterfall CLAUDE.md
Instructions for postmelee/hyper-waterfall: 본 저장소의 에이전트 운영 규칙은 AGENTS.md를 단일 진실 원천으로 한다. Claude Code도 이 규칙을 그대로 적용한다.
mumei CLAUDE.md
Instructions for iroha924/mumei, covering mumei development guide, what mumei is, language policy, bash + jq conventions (essentials) and schemas/ conventions (essentials).
gru-ai CLAUDE.md
Instructions for andrew-yangy/gru-ai, covering gruai — claude code rules, what this is, context tree structure, how to read the context tree and key conventions.