data-lineage

data-lineage is a skill for Claude Code, Codex from j4flmao/agent-skills. It costs 123 tokens per session (4,840 once invoked), scanned A, original, MIT.

A guide to tracking where data comes from, how it is transformed, and which reports or systems use it. It uses lineage tools such as OpenLineage, Marquez, and DataHub to represent these relationships.

In plain words
What is it for?
It is for collecting lineage from databases, event streams, files, SQL, dbt, Airflow, Spark, and dashboards, including relationships at the individual-column level.
Why use it?
It helps answer what will be affected by a data change and where an incorrect dashboard value originated. This makes troubleshooting, impact analysis, and governance work more manageable.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: mentions Codex.

Good fit It is for collecting lineage from databases, event streams, files, SQL, dbt, Airflow, Spark, and dashboards, including relationships at the individual-column level.

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Install with agentmods
npx agentmods add skills/j4flmao/agent-skills/data-lineage
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 j4flmao/agent-skills --skill data-lineage
Clone the repo
git clone --depth 1 https://github.com/j4flmao/agent-skills

Made for: Claude Code, Codex.

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-lineage

README.md
[![agentmods](https://agentmods.dev/badge/skills/j4flmao/agent-skills/data-lineage/github.svg)](https://agentmods.dev/skills/j4flmao/agent-skills/data-lineage)
Your own site
<a href="https://agentmods.dev/skills/j4flmao/agent-skills/data-lineage"><img src="https://agentmods.dev/badge/skills/j4flmao/agent-skills/data-lineage/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.

agentmods 80×15 button for data-lineage

Your own site · 80×15
<a href="https://agentmods.dev/skills/j4flmao/agent-skills/data-lineage"><img src="https://agentmods.dev/badge/skills/j4flmao/agent-skills/data-lineage.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 123 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 4,840 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
Origin original 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 $0.00123 $0.04840
Opus 5 $0.00062 $0.02420
Sonnet 5 $0.00025 $0.00968
Haiku 4.5 $0.00012 $0.00484

Measured 8d ago against content hash d9a01355b2db, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

data-lineage scanned grade A with 1 finding 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 8d 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

curl http://localhost:5000/api/v1/namespaces/prod_warehouse/datasets
skills/data/data-lineage/SKILL.md · 595 lines

How it starts

The opening of the file, as written. The whole thing — 595 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Data Lineage

Purpose

Capture, store, query, and visualize end-to-end data lineage from source systems through transformations to dashboards, supporting impact analysis, root cause investigation, and data governance compliance.

Agent Protocol

Trigger

Exact user phrases: "data lineage", "OpenLineage", "Marquez", "DataHub lineage", "column-level lineage", "impact analysis", "data provenance", "lineage graph", "data dependency", "producer consumer lineage", "field-level lineage".

Input Context

Before activating, verify:

  • Source systems (databases, event streams, file systems)
  • Transformation tools (dbt, Airflow, Spark, custom SQL)
  • Existing lineage infrastructure (OpenLineage, DataHub, Amundsen, manual)
  • Compliance requirements (GDPR, SOX, BCBS 239)
  • Consumer tools (Looker, Tableau, custom dashboards)

Output Artifact

Lineage configuration with OpenLineage integration, Marquez deployment, column-level lineage SQL parser config, and impact analysis report.

Response Format

# OpenLineage integration config
# Marquez deployment
# Lineage event emission
# SQL parser setup
# Lineage extraction queries

No preamble. No postamble. No explanations. No filler/hedging/transitions. Compress output — why use many token when few do trick.

Completion Criteria

  • OpenLineage configured for Airflow/dbt/Spark integration
  • Marquez or DataHub deployed for lineage storage and querying
  • Column-level lineage extracted via SQL parser
  • Impact analysis queryable for any dataset
  • Lineage visualized in UI with upstream/downstream navigation
  • Automated lineage collection integrated into CI/CD
  • Backward lineage (producers) and forward lineage (consumers) documented

Max Response Length

300 lines of code and configuration.

Lineage Graph Model

Core Entities

Dataset (table, file, topic) → Transformation (dbt model, Spark job, SQL query) → Consumer (dashboard, report, ML model)

Each entity has a unique identifier (FQN), type, and metadata. Edges represent data flow: Dataset —[produces]→ Transformation —[consumes]→ Dataset.

Read the full file on GitHub · 595 lines

Files

What ships with it

8 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 8d ago First seen · 595 lines · 123 tokens per session scan A d9a01355b2db

Subscribe to this mod's changes

data-lineage is a skill published in the GitHub repository j4flmao/agent-skills (23 stars, last pushed 6d ago), licensed MIT. It adds 123 tokens to every session and 4,840 once invoked, about $0.0006 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.

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