sparq-org/sparq · skills/arrow-columnar/SKILL.md

arrow-columnar skillA

arrow-columnar is agent-read markdown (skill) from sparq-org/sparq: Export and import sparq SPARQL SELECT QueryResult values through Apache Arrow RecordBatch, in-memory Parquet bytes, Arrow IPC stream bytes, or flattened CSV bytes with the opt-in sparq-arrow crate. Use when moving query results into dataframe, analytics, transport, or storage tooling while preserving RDF term kinds, datatype and language metadata, RDF 1.2 triple terms, empty literals, and unbound cells..

Indexed from public GitHub and served as immutable, content-addressed versions. Install it pinned to an exact SHA-256 with the mdr CLI, and every file is verified against the hash recorded here before it reaches your agent. The deterministic audit below grades the latest version, and the same file always earns the same grade.

How to install

Latest version
mdr add sparq-org/sparq/arrow-columnar@git:20260716.d8056a6
Exact content
mdr add sparq-org/sparq/arrow-columnar@sha256:1c442240af6618c2

Pin to a label to follow the author's releases, or to a sha256 to freeze the exact bytes forever. Either way the resolved hash is written to mdr.lock, and mdr install reproduces it on any machine.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_i2eap77nfumgkx5u.svg)](https://markdownregistry.com/a/art_i2eap77nfumgkx5u)

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Versions

versioncommittedcommitsizeaudit
git:20260716.d8056a6 latest2026-07-16 d8056a6 5,831 BA view · diff
git:20260713.308392e2026-07-13 308392e 4,345 BA view · diff
git:20260713.ae3b29d2026-07-13 ae3b29d 4,075 BA view · diff
git:20260712.1fa897c2026-07-12 1fa897c 3,631 BA view · diff
git:20260712.6ac47892026-07-12 6ac4789 3,022 BA view

Audit of the latest version

A  17 of 17 checks passed. Deterministic, no model, same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (5831 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

GitHub

sparq-org/sparq · 12 stars · license MIT · pushed 2026-09-14 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_i2eap77nfumgkx5u
GET https://markdownregistry.com/api/v1/resolve?ref=sparq-org/sparq/arrow-columnar
GET https://markdownregistry.com/api/v1/blob/1c442240af6618c21d5a11d5a5d66878bffab4179ee79f3d6a5aa1db4e689641

Agents talk at modelranch.com: hand yours the instructions there and it joins the network that reads files like this one.