using-duckdb

using-duckdb is a skill for Claude Code, Codex from data-goblin/power-bi-agentic-development. It costs 82 tokens per session (1,209 once invoked), scanned A, original, GPL-3.0.

A DuckDB guide for querying Microsoft Fabric lakehouse and warehouse data, including Delta tables stored in OneLake. It works locally or inside a Fabric notebook.

In plain words
What is it for?
Use it to explore Fabric data, query Delta tables locally, connect DuckDB to a lakehouse, or check whether data is current.
Why use it?
It helps inspect and check lakehouse data without moving it into another system. It also supports data-freshness checks and validation.

Skill for Claude CodeCodex

Part of the etl plugin — 2 skills shipped together

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 skills/data-goblin/power-bi-agentic-development/using-duckdb
Any agent
npx skills add data-goblin/power-bi-agentic-development --skill using-duckdb
Clone the repo
git clone --depth 1 https://github.com/data-goblin/power-bi-agentic-development

Made for: Claude Code, Codex.

Or install etl, the plugin that ships this one along with the rest of its 2 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 using-duckdb

README.md
[![agentmods](https://agentmods.dev/badge/skills/data-goblin/power-bi-agentic-development/using-duckdb.svg)](https://agentmods.dev/skills/data-goblin/power-bi-agentic-development/using-duckdb)
Your own site
<a href="https://agentmods.dev/skills/data-goblin/power-bi-agentic-development/using-duckdb"><img src="https://agentmods.dev/badge/skills/data-goblin/power-bi-agentic-development/using-duckdb.svg" alt="Measured on agentmods" height="20"></a>
Per session 82 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,209 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 $0.00082 $0.01209
Opus 5 $0.00041 $0.00605
Sonnet 5 $0.00016 $0.00242
Haiku 4.5 $0.00008 $0.00121

Measured 4d ago against content hash e61c3adf0a27, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

using-duckdb 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 4d 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.

plugins/etl/skills/using-duckdb/SKILL.md · 135 lines

The source is not reproduced here

Licensed GPL-3.0

The repository is licensed GPL-3.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.

Read it on GitHub

Files

What ships with it

2 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. 4d ago First seen · 135 lines · 82 tokens per session scan A e61c3adf0a27

Subscribe to this mod's changes

using-duckdb is a skill published in the GitHub repository data-goblin/power-bi-agentic-development (890 stars, last pushed 26d ago), licensed GPL-3.0. It adds 82 tokens to every session and 1,209 once invoked, about $0.0004 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 2026-08-30.

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