sparq-org/sparq · .claude/skills/unsafe-rust-attestation/SKILL.md

unsafe-rust-attestation skillA

unsafe-rust-attestation is agent-read markdown (skill) from sparq-org/sparq: How sparq attests memory safety — the forbid(unsafe_code) posture across most crates, the concentrated sparq-core unsafe surface (mmap / dict-spill / SIMD, threat-model boundary B5), the nightly Miri lane, cargo-geiger, and the per-site unsafe-justification register (gap GX-5) — and how to document plus verify every unsafe block for the memory-safety attestation framework. Use when working the memsafety certification worktree, enumerating or justifying an unsafe site, wiring the cargo-geiger rat.

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/unsafe-rust-attestation@git:20260615.ee0cdb5
Exact content
mdr add sparq-org/sparq/unsafe-rust-attestation@sha256:227c947c33884eb2

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_jbvuin363jxut53i.svg)](https://markdownregistry.com/a/art_jbvuin363jxut53i)

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Versions

versioncommittedcommitsizeaudit
git:20260615.ee0cdb5 latest2026-06-15 ee0cdb5 9,007 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 (9007 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_jbvuin363jxut53i
GET https://markdownregistry.com/api/v1/resolve?ref=sparq-org/sparq/unsafe-rust-attestation
GET https://markdownregistry.com/api/v1/blob/227c947c33884eb2529e5813aec87fe30491ad6da892e3a6ee5e719421bf98ab

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