sparq-org/sparq · .claude/skills/sparql-formal-semantics/SKILL.md

sparql-formal-semantics skillA

sparql-formal-semantics is agent-read markdown (skill) from sparq-org/sparq: Cheat-sheet for the formal semantics of the SPARQL fragment used in the ZKP-SPARQL paper — Pérez–Arenas–Gutiérrez algebra, RDF graph model, blank-node canonicalisation choices, fragment-scoping conventions. Use when writing operator specs, scoping which SPARQL constructs the paper supports, drafting semantics sections, or reconciling differences between the W3C SPARQL 1.1 rec and the paper's formalisation..

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/sparql-formal-semantics@git:20260612.13b231c
Exact content
mdr add sparq-org/sparq/sparql-formal-semantics@sha256:7ceaaec34531353f

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_fl7omqqshzodikva.svg)](https://markdownregistry.com/a/art_fl7omqqshzodikva)

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Versions

versioncommittedcommitsizeaudit
git:20260612.13b231c latest2026-06-12 13b231c 4,101 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 (4101 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_fl7omqqshzodikva
GET https://markdownregistry.com/api/v1/resolve?ref=sparq-org/sparq/sparql-formal-semantics
GET https://markdownregistry.com/api/v1/blob/7ceaaec34531353f553ab95d4f6eaa051c8b16e67b054ef0646f81e33ffa6b03

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