sparq-org/sparq · skills/mpc/SKILL.md

mpc skillA

mpc is agent-read markdown (skill) from sparq-org/sparq: Run a SPARQL query across multiple mutually-distrusting RDF data holders (federated MPC) — per-holder local sub-evaluation, crypto-free disclosed-key global-IRI joins, and an honest-majority Shamir secret-sharing backend for secure cumulative aggregates + hidden-value (private-key) joins. Use for confidential federated SPARQL / secret-shared aggregates / private set-intersection joins over RDF. EARLY/RESEARCH, native-only; honest-majority with RS-consistency-checked reconstruction (tamper DETECT.

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/mpc@git:20260801.e27c1b0
Exact content
mdr add sparq-org/sparq/mpc@sha256:59007ee46adc7c9c

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_sqr2fyxzymmi75hv.svg)](https://markdownregistry.com/a/art_sqr2fyxzymmi75hv)

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Versions

versioncommittedcommitsizeaudit
git:20260801.e27c1b0 latest2026-08-01 e27c1b0 84,319 BA view · diff
git:20260801.6b9d5062026-08-01 6b9d506 82,564 BA view · diff
git:20260801.8935d2f2026-08-01 8935d2f 79,534 BA view · diff
git:20260728.a5e74df2026-07-28 a5e74df 76,565 BA view · diff
git:20260726.6c818fd2026-07-26 6c818fd 74,980 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 (84319 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_sqr2fyxzymmi75hv
GET https://markdownregistry.com/api/v1/resolve?ref=sparq-org/sparq/mpc
GET https://markdownregistry.com/api/v1/blob/59007ee46adc7c9c332b6f26339a018a6e9abc34f8ae78f6ee5a5249de34fac4

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