DuckDB C++ Extension
Custom C++ bindings for DuckDB focusing on fast data ingestion.
Install / Use
npx skills add quantDIY/QuanuX --skill duckdbInstalls into whichever agent you are using.
SKILL.md
Installable skill definition
Quality Score
Category
Development & EngineeringSupported Platforms
Tags
Our assessment of DuckDB C++ Extension
DuckDB C++ Extension scores 48/100 on our quality scale, 4194th of 4,529 Development & Engineering skills we index.
Its SKILL.md is 857 bytes long, split into 4 sections with 1 code example: fairly brief, so expect to fill in details yourself.
It has no GitHub stars yet, so there is no community track record; judge it on its content.
Maintenance, license and trust
- The repository was last updated about 6 months ago. That is recent enough to be usable, but agent tooling moves fast, so check the instructions against your agent's current version.
- No license is declared. By default that means all rights are reserved: you can read it, but reusing or redistributing it is not clearly permitted. Ask the author before building on it commercially.
- Its trust signals score 78/100, with 2 cautions from licensing, adoption, age or documentation. These come from repository metadata, not a code audit — read the skill file before letting an agent act on it.
Safety scan
No issues foundOur scan of the whole file found no instruction hijacking, hidden characters, credential access, data exfiltration or destructive commands.
Automated pattern scan on 2026-10-01. It catches known dangerous patterns, not every risk — read a skill before letting an agent act on it.
DuckDB C++ Extension compared with similar skills
All 4 of these similar skills score higher than DuckDB C++ Extension; compare them before choosing.
| Skill | Score | Stars | Updated | Format |
|---|---|---|---|---|
| DuckDB C++ Extension (this skill)by quantDIY | 48 | 0 | 6mo ago | SKILL.md |
| ai-job-searchby MadsLorentzen | 100 | 44.7k | 2d ago | CLAUDE.md |
| claude-howtoby luongnv89 | 100 | 41.7k | 1d ago | CLAUDE.md |
| algorithmic-artby anthropics | 100 | 177.9k | 9d ago | SKILL.md |
| pptxby anthropics | 100 | 177.9k | 9d ago | SKILL.md |
Frequently asked questions
- How do I install DuckDB C++ Extension?
- Run
npx skills add quantDIY/QuanuX --skill "DuckDB C++ Extension". The install tabs above show the steps for each supported agent. - Which AI agents does DuckDB C++ Extension work with?
- It is written for Universal, as a SKILL.md file. Other agents that read the same format can often use it too.
- Is DuckDB C++ Extension safe to use?
- Our scan of the whole file found no instruction hijacking, hidden characters, credential access, data exfiltration or destructive commands. It declares no license and scores 78/100 on trust signals. Skills are instructions an agent will follow, so read the file before installing it and do not approve commands you do not understand.
- Is DuckDB C++ Extension still maintained?
- The repository was last updated about 6 months ago. That is recent enough to be usable, but agent tooling moves fast, so check the instructions against your agent's current version.
Skill content
View source on GitHubname: DuckDB C++ Extension description: Custom C++ bindings for DuckDB focusing on fast data ingestion.
DuckDB C++ Extension (duckdb_ext)
A high-performance Cython wrapper around duckdb, exposing the Appender API for bulk ingestion. Built using DuckDB amalgamation for maximum portability.
Installation
Run python3 setup.py build_ext --inplace in extensions/cpp/duckdb/cython.
Usage
import duckdb_ext
db = duckdb_ext.PyDuckDB(":memory:") # or path
con = duckdb_ext.PyConnection(db)
con.query("CREATE TABLE foo (i INT)")
appender = duckdb_ext.PyAppender(con, "foo")
appender.begin_row()
appender.append_int32(42)
appender.end_row()
appender.flush()
Architecture
- Language: Cython (C++17)
- Source: Amalgamation (
duckdb.cpp+duckdb.hpp) - Performance: Direct C++ calls, no Pybind overhead.
Related Skills
ai-job-search
44.7kThe job search that runs on your machine. AI job application framework built on Claude Code: evaluate postings, tailor CVs, write cover letters, prep interviews. Fork it and own it.
claude-howto
41.7kA visual, example-driven guide to Claude Code — from basic concepts to advanced agents, with copy-paste templates that bring immediate value.
algorithmic-art
177.9kCreating algorithmic art using p5.js with seeded randomness and interactive parameter exploration. Use this when users request creating art using code, generative art, algorithmic art, flow fields, or particle systems.
pptx
177.9kUse this skill any time a .pptx or .potx file is involved in any way — as input, output, or both. This includes: creating slide decks, pitch decks, or presentations; reading, parsing, or extracting text from any .pptx or .potx file (even if the extracted content will be used elsewhere, like in an em…
Trust signals
From repository metadata: license, adoption, age and documentation. Not a code audit — see the Safety scan above for what the skill file itself contains.