data-contract

data-contract is a command for Claude Code from ShareSwordsmanRuin/r05-jqueryscript-awesome-claude-code-datascience. It costs 0 tokens per session (781 once invoked), scanned A, original, no licence file.

A command for defining a data contract: an agreed description of the data a pipeline provides, including its expected structure and meaning.

In plain words
What is it for?
Use it when designing or maintaining data pipelines and their inputs or outputs.
Why use it?
It helps teams avoid misunderstandings when data moves between pipeline steps or systems.

Command for Claude Code

Written for Claude Code: a Claude Code command (commands/*.md). Also seen: model in frontmatter.

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 commands/shareswordsmanruin/r05-jqueryscript-awesome-claude-code-datascience/data-contract
Clone the repo
git clone --depth 1 https://github.com/ShareSwordsmanRuin/r05-jqueryscript-awesome-claude-code-datascience

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.

agentmods badge for data-contract

README.md
[![agentmods](https://agentmods.dev/badge/commands/shareswordsmanruin/r05-jqueryscript-awesome-claude-code-datascience/data-contract.svg)](https://agentmods.dev/commands/shareswordsmanruin/r05-jqueryscript-awesome-claude-code-datascience/data-contract)
Your own site
<a href="https://agentmods.dev/commands/shareswordsmanruin/r05-jqueryscript-awesome-claude-code-datascience/data-contract"><img src="https://agentmods.dev/badge/commands/shareswordsmanruin/r05-jqueryscript-awesome-claude-code-datascience/data-contract.svg" alt="Measured on agentmods" height="20"></a>
Per session 0 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 781 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin unknown 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 5.1 $0.00000 $0.00781
Opus 5 $0.00000 $0.00391
Sonnet 5 $0.00000 $0.00156
Haiku 4.5 $0.00000 $0.00078

Measured 6d ago against content hash 5d45d2abf26d, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

data-contract 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 6d 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.

commands/data-contract.md · 105 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

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. 6d ago First seen · 105 lines · 0 tokens per session scan A 5d45d2abf26d

Subscribe to this mod's changes

data-contract is a command published in the GitHub repository ShareSwordsmanRuin/r05-jqueryscript-awesome-claude-code-datascience (46 stars, last pushed 4mo ago), with no licence file. It costs nothing until one of its globs matches a file; then it loads 781 tokens. 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.