check-protection SKILL.md skillA

check-protection from checkpickerupper/skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add checkpickerupper/skills/check-protection@git:20261023.330f936

Pins git:20261023.330f936 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
checkpickerupper/skills
Path
skills/productivity/check-protection/SKILL.md
Versions recorded
3
Latest version
git:20261023.330f936, committed Oct 23, 2026
First version recorded
Oct 12, 2026
Size
4,725 bytes
Repository stars
6
License
MIT

Choose verification before a full run, a repeated check, a review of existing evidence, or a check-cost audit. Ask what each check protects that existing or cheaper evidence does not; keep required gates and remove duplication.

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

# Check protection

<what-to-do>
Before spending time on a check, ask: **What does this protect that nothing cheaper already protects?** Name the plausible wrong behaviour it catches, the public boundary exercised, and the condition that would make the check fail. Read what the command actually runs, including nested scripts and profiles. A check's name, duration, or presence in an old brief does not answer the question.

Compare the proposed check with existing evidence: tested commit, input, environment, dependency versions, boundary and result completeness. Reuse a complete result when those conditions still cover the claim and the repository accepts that evidence. Inspect the recorded output rather than repeating the run to verify its author. A changed environment, conflicting evidence, incomplete verdict, or changed code on the exercised path can justify another run; state which condition changed.
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add checkpickerupper/skills/check-protection@sha256:3668858dc9a0b331

The line at the top of this page pins the label git:20261023.330f936, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_bdt3a6cr3tr346ur.svg)](https://markdownregistry.com/a/art_bdt3a6cr3tr346ur)

1 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 3 versions of this file, between Oct 12, 2026 and Oct 23, 2026, about one every 6 days.

versioncommittedcommitsizeaudit
git:20261023.330f936 latest2026-10-23 330f936 4,725 BA view · diff
git:20261021.61c15fb2026-10-21 61c15fb 4,811 BA view · diff
git:20261012.0afb6592026-10-12 0afb659 4,719 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the 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 (4725 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

checkpickerupper/skills · 6 stars · license MIT · pushed 2026-10-23 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_bdt3a6cr3tr346ur
GET https://markdownregistry.com/api/v1/resolve?ref=checkpickerupper/skills/check-protection
GET https://markdownregistry.com/api/v1/blob/3668858dc9a0b3314121f57a99ad66600b46e549cc2d4dee407695e1b52d45d6

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

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