duckdb SKILL.md skillA
duckdb from fmind/dot is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add fmind/dot/duckdb@git:20261031.ad68ebdPins git:20261031.ad68ebd in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- fmind/dot
- Path
skills/duckdb/SKILL.md- Versions recorded
- 16
- Latest version
- git:20261031.ad68ebd, committed Oct 31, 2026
- First version recorded
- Sep 9, 2026
- Size
- 5,951 bytes
- Repository stars
- 13
- License
- MIT
Query and export CSV, Parquet, JSON, or SQLite data with DuckDB.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# DuckDB and SQLite DuckDB is the default engine for local analysis: it reads CSV, Parquet, and JSON directly, attaches SQLite files, and writes any of them back. SQLite stays the embedded store for applications; DuckDB is the tool you point at data. ## Commands ```bash duckdb -no-init -batch -bail -c "SELECT name, score FROM 'people.csv' WHERE score > 80 ORDER BY score DESC, name LIMIT 20" duckdb -no-init -batch -bail -json -c "SELECT count(*) AS event_count FROM 'events/*.json'" # aggregate before displaying duckdb -no-init -batch -bail lab.duckdb -c "CREATE OR REPLACE TABLE people AS FROM 'people.csv'" duckdb -no-init -batch -bail -c "COPY (FROM 'people.csv') TO 'people.parquet'" # durable derived data duckdb -no-init -batch -bail -c "ATTACH 'app.sqlite' AS s (TYPE sqlite, READ_ONLY); SELECT count(*) FROM s.users" duckdb -no-init -batch -bail -c "SUMMARIZE FROM 'people.parquet'" # column statistics sqlite3 -init /dev/null -batch -bail -readonly app.sqlite '.schema' sqlite3 -init /dev/null -batch -bail -noheader -list -readonly app.sqlite 'PRAGMA integrity_check' ``` …
Read the whole file at its exact version.
How to install
mdr add fmind/dot/duckdb@sha256:70260cedb12e5801The line at the top of this page pins the label git:20261031.ad68ebd, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_srktlagokfdp3y4l)
7 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 16 versions of this file, between Sep 9, 2026 and Oct 31, 2026, about one every 3 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261031.ad68ebd latest | 2026-10-31 | ad68ebd | 5,951 B | A | view · diff |
| git:20261025.e5dfc9b | 2026-10-25 | e5dfc9b | 5,503 B | A | view · diff |
| git:20261025.a974079 | 2026-10-25 | a974079 | 5,503 B | A | view · diff |
| git:20261024.692d8d2 | 2026-10-24 | 692d8d2 | 5,563 B | A | view · diff |
| git:20261007.fbd724a | 2026-10-07 | fbd724a | 5,016 B | A | view · diff |
| git:20261006.5b98915 | 2026-10-06 | 5b98915 | 5,155 B | A | view · diff |
| git:20261006.b937f95 | 2026-10-06 | b937f95 | 5,220 B | A | view · diff |
| git:20261005.e9af7a2 | 2026-10-05 | e9af7a2 | 5,099 B | A | view · diff |
| git:20261004.f03a551 | 2026-10-04 | f03a551 | 5,077 B | A | view · diff |
| git:20260926.626254b | 2026-09-26 | 626254b | 5,358 B | A | view · diff |
| git:20260923.2988db2 | 2026-09-23 | 2988db2 | 4,426 B | A | view · diff |
| git:20260919.4491844 | 2026-09-19 | 4491844 | 4,119 B | A | view · diff |
| git:20260916.50d6810 | 2026-09-16 | 50d6810 | 4,095 B | A | view · diff |
| git:20260912.0ce18c0 | 2026-09-12 | 0ce18c0 | 4,166 B | A | view · diff |
| git:20260909.892d859 | 2026-09-09 | 892d859 | 4,049 B | A | view · diff |
| git:20260909.17296ea | 2026-09-09 | 17296ea | 3,869 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (5951 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
fmind/dot · 13 stars · license MIT · pushed 2026-11-08 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_srktlagokfdp3y4l GET https://markdownregistry.com/api/v1/resolve?ref=fmind/dot/duckdb GET https://markdownregistry.com/api/v1/blob/70260cedb12e58014ca0709c99a333d5656e390fb2b88d8a2c45aa2c9919892e
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.