How do I install the Duckdb Foundation skill?

Run npx skillmds@latest add ryan-brosas/duckdb-foundation in your terminal (requires Node.js), paste this page's agent-chat prompt into Claude, Cursor, or any MCP-connected agent, or download the SKILL.md file and copy it into your agent's skills directory.

What does the Duckdb Foundation skill do?

Use when porting analytical-database internals — DPhyp join ordering, cardinality estimation, and adaptive-radix-tree index machinery. Source code and direct tests are ground truth. It is listed under Coding & Dev Tools on SkillMD.

Is Duckdb Foundation safe to use?

This skill has not completed SkillMD's automated safety review yet. SkillMD never runs a skill's scripts for you; review the SKILL.md before installing.

Which AI agents work with Duckdb Foundation?

This skill is tagged as working with Claude Code, Claude.ai, OpenAI Codex. SKILL.md is an open format, so most agents that read a skills directory can load it too.

Is Duckdb Foundation free to use?

Yes. Installing skills from SkillMD is free, and the skill stays under its author's original license.

Who published Duckdb Foundation?

ryan-brosas (@ryan-brosas) published this skill. Their other Agent Skills are listed on their SkillMD profile.

Duckdb Foundation by ryan-brosas — Agent Skill

Name: Duckdb Foundation
Author: ryan-brosas

File contents

duckdb: Join-Order Optimizer + ART Index Foundation

Foundation contract

This is a cold, source-specific foundation, not an operational procedure. It is historical, revision-pinned evidence rather than timeless guidance. Current project source, tests, requirements, and runtime behavior outrank this projection and decide what ships.

Provenance and revision

Source record: duckdb; portable upstream identity, license, coverage caveats, and retrieval history are preserved in the index.
Recorded revision: main@044a04a7cd39e6e8235f756597ae42dde084e5e5.
Full provenance, coverage caveats, boundaries, and preserved evidence: references/index.md.

Topic map

Representative topics: Join-order planner kernel; Adaptive radix tree index; Task scheduler; Buffer pool eviction; Block memory & handles; Buffer manager; Data chunks & vectors; Instance lifecycle.
Scope and retrieval questions: references/index.md#use-this-for.
Complete capsule chooser: references/index.md#load-the-matching-source-dump.
Detailed grouped map: references/index.md#capsule-map.
Source limitations and portability boundaries: references/index.md#boundaries.

Retrieval

Open the index, choose one capsule matching the active question, and load only that capsule. Revalidate its cited source and revision before relying on it. Do not bulk-load the inventory, treat historical claims as current truth, or apply this foundation as a procedure.

Frequently asked questions

Duckdb Foundation