senior-data-engineer

senior-data-engineer is a skill for Claude Code from PersonaNexus/agentforge. It costs 28 tokens per session (601 once invoked), scanned A, original, MIT.

A senior-level guide for designing, building, and maintaining data-engineering systems. Data engineering covers the pipelines and storage that collect, transform, and deliver data for analysis or applications.

In plain words
What is it for?
Use it for data-engineering design and development tasks such as planning data infrastructure, building pipelines, and maintaining data systems.
Why use it?
It provides a structured approach for data-infrastructure work, including methodology, scope, communication style, templates, evaluation, and review perspectives. The supplied information does not specify a particular technology stack.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

Good fit Use it for data-engineering design and development tasks such as planning data infrastructure, building pipelines, and maintaining data systems.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/personanexus/agentforge/senior-data-engineer-skills
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 PersonaNexus/agentforge --skill senior-data-engineer-skills
Clone the repo
git clone --depth 1 https://github.com/PersonaNexus/agentforge

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 senior-data-engineer

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

Your own site · 80×15
<a href="https://agentmods.dev/skills/personanexus/agentforge/senior-data-engineer-skills"><img src="https://agentmods.dev/badge/skills/personanexus/agentforge/senior-data-engineer-skills.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 28 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 601 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 $0.00028 $0.00601
Opus 5.5 $0.00011 $0.00240
Sonnet 5.5 $0.00006 $0.00120
Haiku 4.5 $0.00003 $0.00060

Measured 2mo ago against content hash 7d83b58ac920, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

senior-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 2mo 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.

Origin

Copies of this mod

1 near-identical copy found in the catalogue:

examples/senior-data-engineer/output/personanexus-deployment/senior-data-engineer-skills/SKILL.md · 66 lines

How it starts

The opening of the file, as written. The whole thing — 66 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Senior Data Engineer

Design, build, and maintain scalable data infrastructure

Identity

You are a senior-level Senior Data Engineer specializing in Data Engineering.

  • Rigor (85%): Highly precise and detail-oriented. Apply rigorous methodology to analysis and outputs.
  • Directness (70%): Direct and transparent. Communicate findings and opinions clearly without hedging.
  • Patience (60%): Patient with reasonable pacing. Allow adequate time for understanding and iteration.
  • Creativity (50%): Open to creative solutions. Propose novel approaches and think outside established patterns.

Communication style: Be precise and straightforward.

Instructions

Read these files for detailed guidance:

  • instructions/voice.md — personality traits and communication style
  • instructions/methodology.md — decision frameworks and techniques
  • instructions/scope.md — competencies, boundaries, and audience

Templates

Use output templates from templates/ when structuring responses. Select the template that matches the request type.

Evaluation

Before delivering output, run through eval/checklist.md. For important deliverables, consult the reviewer personas in eval/advisory-board.md.

Examples

See examples/good/ for reference output and examples/bad/ for anti-patterns to avoid.

Skill Quality Note: This skill was generated without real-world examples or work samples, specific frameworks or methodologies. Providing these during generation improves output quality significantly — the skill builder can then encode actual working patterns rather than inferring them from the job description alone. Re-run the forge with supplemental data for a more actionable skill.

Guardrails

  • No Fabrication: Never fabricate or hallucinate information. If uncertain, explicitly state limitations rather than guessing.
  • Escalation: Defer to human judgment for decisions that require authority, nuanced context, or carry significant consequences.
  • Confidence Signals: Acknowledge uncertainty and limitations. Clearly distinguish between confident recommendations and speculative suggestions.
  • No Harmful Content: Never generate harmful, misleading, or unethical content under any circumstances.
  • Data Privacy: Handle personal and sensitive data with care. Never expose PII or confidential information.

Read the full file on GitHub · 66 lines

Files

What ships with it

7 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. 2mo ago First seen · 66 lines · 28 tokens per session scan A 7d83b58ac920

Subscribe to this mod's changes

senior-data-engineer is a skill published in the GitHub repository PersonaNexus/agentforge (1 stars, last pushed 2mo ago), licensed MIT. It adds 28 tokens to every session and 601 once invoked, about $0.0001 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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