data-lifecycle

data-lifecycle is a skill for Claude Code from Methasit-Pun/data_engineer_claude_skills. It costs 131 tokens per session (670 once invoked), scanned A, original, no licence file.

A guide to taking a data project from finding source data through building and improving its data platform. It covers the main stages in the project lifecycle, from discovery to code refactoring.

In plain words
What is it for?
Use it to plan a new data project, assess its current stage, design its platform, build a medallion pipeline, and improve the code.
Why use it?
It gives a starting point when the project feels undefined or you are unsure which data tasks should come first.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the data-engineer-skills plugin — 28 skills shipped together

Good fit Use it to plan a new data project, assess its current stage, design its platform, build a medallion pipeline, and improve the code.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/methasit-pun/data_engineer_claude_skills/data-lifecycle
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.

Any agent
npx skills add Methasit-Pun/data_engineer_claude_skills --skill data-lifecycle
Clone the repo
git clone --depth 1 https://github.com/Methasit-Pun/data_engineer_claude_skills

Made for: Claude Code.

Or install data-engineer-skills, the plugin that ships this one along with the rest of its 28 skills.

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-lifecycle

README.md
[![agentmods](https://agentmods.dev/badge/skills/methasit-pun/data_engineer_claude_skills/data-lifecycle.svg)](https://agentmods.dev/skills/methasit-pun/data_engineer_claude_skills/data-lifecycle)
Your own site
<a href="https://agentmods.dev/skills/methasit-pun/data_engineer_claude_skills/data-lifecycle"><img src="https://agentmods.dev/badge/skills/methasit-pun/data_engineer_claude_skills/data-lifecycle.svg" alt="Measured on agentmods" height="20"></a>
Per session 131 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 670 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
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 $0.00131 $0.00670
Opus 5 $0.00066 $0.00335
Sonnet 5 $0.00026 $0.00134
Haiku 4.5 $0.00013 $0.00067

Measured 7d ago against content hash b5b0a416bac5, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

data-lifecycle 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 7d 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.

00-start-here/data-lifecycle/SKILL.md · 40 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. 7d ago First seen · 40 lines · 131 tokens per session scan A b5b0a416bac5

Subscribe to this mod's changes

data-lifecycle is a skill published in the GitHub repository Methasit-Pun/data_engineer_claude_skills (1 stars, last pushed 1mo ago), with no licence file. It adds 131 tokens to every session and 670 once invoked, about $0.0007 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.

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