greeting-helper SKILL.md skillA
greeting-helper from claude-world/claude-skill-antivirus is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add claude-world/claude-skill-antivirus/greeting-helper@git:20260118.a2eb7b9Pins git:20260118.a2eb7b9 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- claude-world/claude-skill-antivirus
- Path
examples/safe-skill/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260118.a2eb7b9, committed Jan 18, 2026
- Size
- 381 bytes
- Repository stars
- 80
- License
- MIT
A simple skill that helps with greeting messages.
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
# Greeting Helper A safe and simple skill for creating personalized greeting messages. ## Usage Just ask the assistant to create a greeting message for someone. ## Examples - "Create a birthday greeting for John" - "Write a thank you note for my colleague"
Read the whole file at its exact version.
How to install
mdr add claude-world/claude-skill-antivirus/greeting-helper@sha256:83ae5d4a3c82e14dThe line at the top of this page pins the label git:20260118.a2eb7b9, 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.
[](https://markdownregistry.com/a/art_msbvpoakcnwjrysj)
1 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Jan 18, 2026.
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (381 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
claude-world/claude-skill-antivirus · 80 stars · license MIT · pushed 2026-10-21 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_msbvpoakcnwjrysj GET https://markdownregistry.com/api/v1/resolve?ref=claude-world/claude-skill-antivirus/greeting-helper GET https://markdownregistry.com/api/v1/blob/83ae5d4a3c82e14da56a36476094027a2b7e772b09065ba0bccb61470b03f5fa
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.