unboundcompute/security-agent-skills · skills/auditing-ota-and-firmware-update-channel-trust/SKILL.md

auditing-ota-and-firmware-update-channel-trust skillA

auditing-ota-and-firmware-update-channel-trust is agent-read markdown (skill) from unboundcompute/security-agent-skills: Audit an over-the-air or firmware update channel for a device that accepts an image it should reject: an update whose signature is not verified so an attacker installs arbitrary firmware, an update fetched over an unauthenticated transport an on-path attacker can swap, a rollback to an older signed image with known vulnerabilities because the device does not enforce version monotonicity, an update server or manifest URL the device trusts without authentication, and an unencrypted image that leak.

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 unboundcompute/security-agent-skills/auditing-ota-and-firmware-update-channel-trust@git:20260901.f8395d1
Exact content
mdr add unboundcompute/security-agent-skills/auditing-ota-and-firmware-update-channel-trust@sha256:b39b13446650552f

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_pg6gjt5y5hqvndcy.svg)](https://markdownregistry.com/a/art_pg6gjt5y5hqvndcy)

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Versions

versioncommittedcommitsizeaudit
git:20260901.f8395d1 latest2026-09-01 f8395d1 11,132 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 (11132 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

unboundcompute/security-agent-skills · 5 stars · license MIT · pushed 2026-09-08 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_pg6gjt5y5hqvndcy
GET https://markdownregistry.com/api/v1/resolve?ref=unboundcompute/security-agent-skills/auditing-ota-and-firmware-update-channel-trust
GET https://markdownregistry.com/api/v1/blob/b39b13446650552f1049217273fae29c58784e114c8b6c3d5c731d64c98f2a26

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