jordancoin/ios-skills-collection · skills/dpearson2699--device-integrity/SKILL.md

device-integrity skillA

device-integrity is agent-read markdown (skill) from jordancoin/ios-skills-collection: Verify device legitimacy and app integrity using DeviceCheck (DCDevice per-device bits) and App Attest (DCAppAttestService key generation, attestation, and assertion flows). Use when implementing fraud prevention, detecting compromised devices, validating app authenticity with Apple's servers, protecting sensitive API endpoints with attested requests, or adding device verification to a backend architecture..

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 jordancoin/ios-skills-collection/device-integrity@git:20260329.893209f
Exact content
mdr add jordancoin/ios-skills-collection/device-integrity@sha256:daf1b700d5a223e3

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_qotp2shgpvdobmdk.svg)](https://markdownregistry.com/a/art_qotp2shgpvdobmdk)

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Versions

versioncommittedcommitsizeaudit
git:20260329.893209f latest2026-03-29 893209f 14,345 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 (14345 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

jordancoin/ios-skills-collection · 5 stars · license NOASSERTION · pushed 2026-09-10 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_qotp2shgpvdobmdk
GET https://markdownregistry.com/api/v1/resolve?ref=jordancoin/ios-skills-collection/device-integrity
GET https://markdownregistry.com/api/v1/blob/daf1b700d5a223e35ad514c850097e504cc56b9b0a173acf0693344ac35ba570

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