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 VictorTomaili/skill-cli --skill hello-worldgit clone --depth 1 https://github.com/VictorTomaili/skill-cliWrote 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/victortomaili/skill-cli/hello-world)<a href="https://agentmods.dev/skills/victortomaili/skill-cli/hello-world"><img src="https://agentmods.dev/badge/skills/victortomaili/skill-cli/hello-world/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/victortomaili/skill-cli/hello-world"><img src="https://agentmods.dev/badge/skills/victortomaili/skill-cli/hello-world.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 | $0.00017 | $0.00275 |
| Opus 5.5 | $0.00007 | $0.00110 |
| Sonnet 5.5 | $0.00003 | $0.00055 |
| Haiku 4.5 | $0.00002 | $0.00028 |
Grade A, and why
hello-world 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
Hello, world!
This is the smallest possible skill. When a user types /hello (or /hi), the
agent runs skill trigger hello and this body is loaded into context.
What to do
- Greet the user warmly.
- Briefly offer to help with whatever they're working on.
Make it your own
Replace the frontmatter and this body with your own instructions. The only
required field is name; description, version, and triggers are recommended.
---
name: my-skill # required, plain identifier (a-z 0-9 . _ -)
description: What it does # recommended — shown by `skill list` / `skill show`
version: 1.0.0 # recommended — surfaced by `skill update`
triggers: [x, y] # optional — powers /x and /y
---
Try it locally
# from a checkout of this repo, install this example into your store:
skill install ./examples
# then:
skill list
skill trigger hello
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 · 44 lines · 17 tokens per session scan A 83dbf06bca3d
hello-world is a skill published in the GitHub repository VictorTomaili/skill-cli (5 stars, last pushed 1mo ago), licensed MIT. It adds 17 tokens to every session and 275 once invoked, about $0.0001 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 2026-08-31.
hello-world compared with skills from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| hello-worldVictorTomaili/skill-cli | Skill | 5 | 1mo ago | MIT | A | 17 | Claude Code, Codex |
| vs-search-tuning-specify-policy-directionvolcengine/SearchCLI | Skill | 1.2k | 2d ago | Apache-2.0 | A | 93 | Claude Code, Codex |
| vs-crawlervolcengine/SearchCLI | Skill | 1.2k | 2d ago | Apache-2.0 | A | 57 | Claude Code, Codex |
| vs-product-qavolcengine/SearchCLI | Skill | 1.2k | 2d ago | Apache-2.0 | A | 51 | Claude Code, Codex |
| vs-search-tuning-partial-casevolcengine/SearchCLI | Skill | 1.2k | 2d ago | Apache-2.0 | A | 85 | Claude Code, Codex |
| vs-user-onboardingvolcengine/SearchCLI | Skill | 1.2k | 2d ago | Apache-2.0 | A | 72 | Claude Code, Codex |
| volcengine-documentationvolcengine/SearchCLI | Skill | 1.2k | 2d ago | Apache-2.0 | A | 51 | Claude Code, Codex |