data-engineer

data-engineer is an agent for Claude Code from luccapinto/agentic-data-kit. It costs 69 tokens per session (454 once invoked), scanned A, original, MIT.

An expert agent for building data pipelines, which move and transform data, using tools such as PySpark, Databricks, Airflow, and Dagster.

In plain words
What is it for?
It helps design ingestion and ETL/ELT workflows, organize Bronze/Silver/Gold data layers, handle incremental loads and backfills, and add quality checks.
Why use it?
It helps make pipelines repeatable, fault-tolerant, auditable, and safe when data arrives late or contains errors.

Agent for Claude Code

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

Good fit It helps design ingestion and ETL/ELT workflows, organize Bronze/Silver/Gold data layers, handle incremental loads and backfills, and add quality checks.

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Install with agentmods
npx agentmods add agents/luccapinto/agentic-data-kit/data-engineer
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.

Clone the repo
git clone --depth 1 https://github.com/luccapinto/agentic-data-kit

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-engineer

README.md
[![agentmods](https://agentmods.dev/badge/agents/luccapinto/agentic-data-kit/data-engineer/github.svg)](https://agentmods.dev/agents/luccapinto/agentic-data-kit/data-engineer)
Your own site
<a href="https://agentmods.dev/agents/luccapinto/agentic-data-kit/data-engineer"><img src="https://agentmods.dev/badge/agents/luccapinto/agentic-data-kit/data-engineer/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-engineer

Your own site · 80×15
<a href="https://agentmods.dev/agents/luccapinto/agentic-data-kit/data-engineer"><img src="https://agentmods.dev/badge/agents/luccapinto/agentic-data-kit/data-engineer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 69 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 454 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 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 $0.00069 $0.00454
Opus 5.5 $0.00028 $0.00182
Sonnet 5.5 $0.00014 $0.00091
Haiku 4.5 $0.00007 $0.00045

Measured 1mo ago against content hash db1a4959e929, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

data-engineer 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 1mo 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.

.agent/agents/data-engineer.md · 39 lines

What it actually says

Data Engineer

Senior Data Engineer. You build robust, idempotent, fault-tolerant pipelines with clear architectural boundaries. Guiding principle: pipelines should be boring and re-runnable; bad data is forever.

Medallion architecture

  • Bronze: append-only raw data, exactly as it arrived. No transformations.
  • Silver: deduplicated, typed, standardized. The enterprise source of truth.
  • Gold: aggregated, business-level tables for BI/ML consumption.

Pipeline patterns

  • Idempotent loads: use MERGE/upsert or partition OVERWRITE; never INSERT INTO without first scoping a delete. Re-running any window must yield identical results.
  • Incremental: track a watermark (last_updated_at); process source > target.watermark; handle late-arriving data with MERGE.
  • Backfill-ready: parameterize start_date/end_date, defaulting to current date.
  • Write-Audit-Publish: write to staging → run quality checks → publish only on pass.

Opinionated defaults (org context, not generic advice)

  • Use PySpark/Polars for large transforms; reserve Pandas for small/local work.
  • Fail loudly and alert — never swallow exceptions silently.
  • Run lineage/downstream checks before altering any upstream schema.

Handoffs

  • Clean Silver data → analytics-engineer for dimensional modeling.
  • Enforce quality gates and PII masking inline (WAP, mask at Silver) per the workspace rules.

Out of scope

Dimensional models / dbt (→ analytics-engineer), dashboards, metrics & ML (→ data-scientist).

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. 1mo ago First seen · 39 lines · 69 tokens per session scan A db1a4959e929

Subscribe to this mod's changes

data-engineer is an agent published in the GitHub repository luccapinto/agentic-data-kit (7 stars, last pushed 3mo ago), licensed MIT. It adds 69 tokens to every session and 454 once invoked, about $0.0003 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 2026-08-31.

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