duckdb-skills vs Sezzlee PostgreSQL
duckdb-skills is a plugin bundle for AI coding tools published by duckdb. Marketplaces we read that list it: 3 (Claude Code: claude-plugins-official, Community GitHub marketplaces, Claude Code: claude-plugins-community). Sezzlee PostgreSQL is an MCP server published by sezzlee. Marketplaces we read that list it: 1 (Official MCP Registry). As of our marketplace pass on 2026-10-14. This pair was picked by a reader, not by our comparison rule, so search engines are asked not to index the page.
Where each is published
| Marketplace |  duckdb-skills |  Sezzlee PostgreSQL |
|---|---|---|
| Claude Code: claude-plugins-official | Listed Version: 0.2.4 Forks (GitHub): 36 Stars (GitHub): 607 Not marked · First seen |
Not listed |
| Claude Code: claude-plugins-community | Listed Version: 0.2.4 Forks (GitHub): 36 Stars (GitHub): 607 Not marked · First seen |
Not listed |
| Official MCP Registry | Not listed | Listed Version: 0.2.1 Downloads/month (npm): 391 Downloads/week (npm): 391 Forks (GitHub): 0 Stars (GitHub): 1 Not marked · First seen |
Each figure is the marketplace's own and is never added up across marketplaces. A marketplace that publishes no figure shows none: no number is not zero.
The facts side by side
| Fact | duckdb-skills | Sezzlee PostgreSQL |
|---|---|---|
| Marketplaces that list it (differs) | 3 (better) | 1 (worse) |
| Stars (GitHub) (differs) | 607 (better) | 1 (worse) |
| Forks (GitHub) (differs) | 36 (better) | 0 (worse) |
| Last release | Not published | Not published |
| Where it runs (differs) | Installs as a plugin bundle | On your machine (@sezzlee/postgres-mcp) |
| Transport (differs) | Not stated | stdio |
| Tools it declares | Not published | Not published |
| Environment variables it asks for (differs) | Not published | 8, secrets among them: 1 |
| Parts of the bundle (differs) | 9 | Not a bundle |
| Licence (differs) | MIT | Not stated |
| Repository (differs) | github.com/duckdb/duckdb-skills | github.com/sezzlee/mcp |
| Changes in the last 7 days (differs) | 0 | 2 |
| First seen (differs) | 2026-10-11 | 2026-10-12 |
Lines where the two differ have a tinted background and bold values. Where the data itself says which value is better (more marketplaces, a larger figure of the same marketplace, a fresher release, a verified mark on a marketplace that lists both), the better one is also marked green with ▲ and the worse one red with ▼. Where it runs, the transport, the tools, the settings, hooks, the bundle's parts, the licence and the week's changes are marked only as different: more or fewer is not better in itself.
What each says it does
duckdb-skills
DuckDB-powered skills for Claude Code: read any data file, attach and query DuckDB databases, search DuckDB/DuckLake docs, search past session logs, and install/update DuckDB extensions.
Sezzlee PostgreSQL
Explore and query PostgreSQL read-only: catalogue search, schema introspection and bounded queries.
How to run each
duckdb-skills As a Claude Code plugin
/plugin install duckdb-skills@claude-plugins-officialSezzlee PostgreSQL As a local MCP server: npm package
claude mcp add --env "SEZZLEE_POSTGRES_DATABASE=<YOUR_SEZZLEE_POSTGRES_DATABASE>" --env "SEZZLEE_POSTGRES_PASSWORD=<YOUR_SEZZLEE_POSTGRES_PASSWORD>" --env "SEZZLEE_POSTGRES_SERVER=<YOUR_SEZZLEE_POSTGRES_SERVER>" --env "SEZZLEE_POSTGRES_USER=<YOUR_SEZZLEE_POSTGRES_USER>" --transport stdio postgres -- npx -y @sezzlee/postgres-mcpRequires: SEZZLEE_POSTGRES_DATABASE, SEZZLEE_POSTGRES_PASSWORD (secret), SEZZLEE_POSTGRES_SERVER, SEZZLEE_POSTGRES_USER
Commands built only from what the marketplaces declare; the full set for every client is on each card.
Tools each declares
Neither one's marketplaces publish a list of tools, so there is nothing to compare.
Settings each asks for
The marketplaces of duckdb-skills publish no settings it asks for, so we do not compare settings.
What it can do: duckdb-skills · What it can do: Sezzlee PostgreSQL · Compare two other plugins
Data comes from the public marketplace file https://github.com/anthropics/claude-plugins-official/blob/HEAD/.claude-plugin/marketplace.json. Data comes from public marketplace files in GitHub repositories of their authors. Data comes from the public marketplace file https://github.com/anthropics/claude-plugins-community/blob/HEAD/.claude-plugin/marketplace.json. Data comes from the Official MCP Registry (registry.modelcontextprotocol.io), CC0 1.0. Figures come from our own regular passes over the marketplaces, last read on . We publish no contact details for plugin publishers.