Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add claude-world/claude-skill-antivirus --skill safe-skillgit clone --depth 1 https://github.com/claude-world/claude-skill-antivirusWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/claude-world/claude-skill-antivirus/safe-skill)<a href="https://agentmods.dev/skills/claude-world/claude-skill-antivirus/safe-skill"><img src="https://agentmods.dev/badge/skills/claude-world/claude-skill-antivirus/safe-skill/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/claude-world/claude-skill-antivirus/safe-skill"><img src="https://agentmods.dev/badge/skills/claude-world/claude-skill-antivirus/safe-skill.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00012 | $0.00078 |
| Opus 5.5 | $0.00005 | $0.00031 |
| Sonnet 5.5 | $0.00002 | $0.00016 |
| Haiku 4.5 | $0.00001 | $0.00008 |
Grade A, and why
greeting-helper scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2mo ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
What it actually 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"
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 2mo ago First seen · 19 lines · 12 tokens per session scan A 83ae5d4a3c82
greeting-helper is a skill published in the GitHub repository claude-world/claude-skill-antivirus (83 stars, last pushed 5d ago), licensed MIT. It adds 12 tokens to every session and 78 once invoked, about $0.0000 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
greeting-helper compared with skills from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| greeting-helperclaude-world/claude-skill-antivirus | Skill | 83 | 5d ago | MIT | A | 12 | Claude Code |
| npm-securitybodadotsh/npm-security-best-practices | Skill | 859 | 1mo ago | MIT | A | 43 | Claude Code, Codex |
| mail-timeveliovgroup/mail-time | Skill | 143 | 9d ago | BSD-3-Clause | A | 195 | Claude Code, Codex |
| npm-safe-scannisconder/npm-safe | Skill | 9 | yesterday | Apache-2.0 | A | 128 | Claude Code, Codex |
| npm-docspledgeandgrow/pledge-skills | Skill | 10 | 3mo ago | MIT | A | 91 | Claude Code, Codex |
| nodejs-runtimedesirecore/market | Skill | 2 | yesterday | MIT | D | 230 | Claude Code |
| create-prprisma/orm | Skill | 48k | yesterday | Apache-2.0 | A | 48 | Claude Code, Codex |