How do I install the Ducklake Test skill?

Run npx skillmds@latest add tomevault-io/ducklake-test 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 Ducklake Test skill do?

Start duckgres with DuckLake (S3-backed storage with PostgreSQL metadata) for local testing. Use when testing duckgres against DuckLake or reproducing Fivetran sync issues. Use when this capability is needed. It is listed under Coding & Dev Tools on SkillMD.

Is Ducklake Test safe to use?

This skill has not completed SkillMD's automated safety review yet. Independent scanners report: SkillSpector: PASS, Skill Scanner: PASS. SkillMD never runs a skill's scripts for you; review the SKILL.md before installing.

Which AI agents work with Ducklake Test?

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 Ducklake Test free to use?

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

Who published Ducklake Test?

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

Ducklake Test by tomevault-io — Agent Skill

Name: Ducklake Test
Author: tomevault-io

File contents

Start duckgres with DuckLake configuration:

Start dependencies (PostgreSQL metadata store + MinIO object storage):
```
docker-compose up -d
```
Kill any existing duckgres process:
```
pkill -f duckgres || true
```

Ensure config file exists at duckgres_local_test.yaml:

host: "0.0.0.0"
port: 35437
data_dir: "./data"
users:
  postgres: "postgres"
extensions:
  - ducklake
ducklake:
  metadata_store: "postgres:host=localhost port=5433 user=ducklake password=ducklake dbname=ducklake"
  object_store: "s3://ducklake/data/"
  s3_provider: "config"
  s3_endpoint: "localhost:9000"
  s3_access_key: "minioadmin"
  s3_secret_key: "minioadmin"
  s3_region: "us-east-1"
  s3_use_ssl: false
  s3_url_style: "path"

Build and run duckgres:

go build -o duckgres . && ./duckgres --config duckgres_local_test.yaml

Connect with psql (in another terminal):

PGPASSWORD=postgres psql "host=127.0.0.1 port=35437 user=postgres sslmode=require"

To cleanup: pkill -f duckgres && docker-compose down

Converted and distributed by TomeVault — claim your Tome and manage your conversions.

Frequently asked questions

Ducklake Test