Borrowing it
Nothing to install: this file belongs to edwinweber/dbt_duckdb_demo_public. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/edwinweber/dbt_duckdb_demo_public/main/CLAUDE.mdgit clone --depth 1 https://github.com/edwinweber/dbt_duckdb_demo_publicWrote 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.
[](https://agentmods.dev/instructions/edwinweber/dbt_duckdb_demo_public/claude-md)<a href="https://agentmods.dev/instructions/edwinweber/dbt_duckdb_demo_public/claude-md"><img src="https://agentmods.dev/badge/instructions/edwinweber/dbt_duckdb_demo_public/claude-md/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.
<a href="https://agentmods.dev/instructions/edwinweber/dbt_duckdb_demo_public/claude-md"><img src="https://agentmods.dev/badge/instructions/edwinweber/dbt_duckdb_demo_public/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.07477 | $0.07477 |
| Opus 5 | $0.03739 | $0.03739 |
| Sonnet 5 | $0.01495 | $0.01495 |
| Haiku 4.5 | $0.00748 | $0.00748 |
Grade A, and why
dbt_duckdb_demo_public CLAUDE.md 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 12d 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.
`azure_transport_option_type = 'curl'`, and creates a persistent Azure How it starts
The opening of the file, as written. The whole thing — 548 lines — stays where its author put it; the contents beside it link to each section on GitHub.
CLAUDE.md — Project Context for AI Assistants
Project Overview
Danish Democracy Data (dbt + DuckDB Demo) — a data engineering pipeline that ingests open data from the Danish Parliament OData API (18 entities) and the Rfam public MySQL database (7 tables), transforms it through a Bronze → Silver → Gold medallion architecture inside DuckDB, and optionally exports the result as Delta Lake tables to Microsoft Fabric OneLake.
- Repo:
edwinweber/dbt_duckdb_demo - Default branch:
main - License: see LICENSE file
- A learning/reference project demonstrating common data engineering patterns on a low-cost, open-source stack.
Tech Stack
| Layer | Technology |
|---|---|
| Language | Python ≥3.12 |
| Orchestration | Dagster ≥1.12 (software-defined assets) |
| Extraction | dlt ≥1.24 (Data Load Tool) |
| Transformation | dbt-core ≥1.10,<1.12 + dbt-duckdb ≥1.10 |
| Query engine | DuckDB ≥1.5.1,<1.6 |
| Silver storage | DuckDB native tables (default) or DuckLake (Parquet + catalog) |
| Data quality | dbt-utils 1.3.0 + dbt built-in tests |
| Cloud storage | Microsoft Fabric OneLake (ADLS Gen2 / Delta Lake) |
| Export | DuckDB delta_scan (dedup read) + deltalake ≥1.5 / PyArrow ≥17 (write) |
| SQL source | SQLAlchemy ≥2.0, PyMySQL ≥1.1 |
| Container | Docker + Docker Compose |
| Testing | pytest ≥8.0 |
Architecture
Extraction (dlt)
↓ JSON / Parquet files
Bronze (DuckDB views over raw files)
↓ hash-based CDC, SCD Type 2
Silver (DuckDB native tables OR DuckLake Parquet + _cv current-version views)
↓ star-schema modeling
Gold (DuckDB views — facts & dimensions)
↓ Delta Lake export
OneLake / local filesystem
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.
- 12d ago First seen · 548 lines · 7,477 tokens per session scan A bcbae1990b0a
dbt_duckdb_demo_public CLAUDE.md is an instructions file published in the GitHub repository edwinweber/dbt_duckdb_demo_public (49 stars, last pushed 2mo ago), licensed MIT. It adds 7,477 tokens to every session, about $0.0374 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 2026-08-30.
Other instructions, from other repositories
next.js AGENTS.md
AGENTS.md instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.
codex AGENTS.md
AGENTS.md instructions for openai/codex, covering rust/codex-rs, the codex-core crate, code review rules, crate api surface and model visible context.
vscode buildNext.instructions.md
Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).
spec-kit AGENTS.md
AGENTS.md instructions for github/spec-kit, covering agents.md, about spec kit and specify, quickstart — add a new integration in 5 steps, integration architecture and integrationmanifest — file tracking.
langchain AGENTS.md
AGENTS.md instructions for langchain-ai/langchain, covering global development guidelines for the langchain monorepo, corridor security analysis, project architecture and context, monorepo structure and development tools & commands.
vscode oss-third-party-notices.instructions.md
Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, applying the notice (cutover) and fallback chain (never fail the build).