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 jnMetaCode/skillet --skill hello-worldgit clone --depth 1 https://github.com/jnMetaCode/skilletWrote 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/jnmetacode/skillet/hello-world)<a href="https://agentmods.dev/skills/jnmetacode/skillet/hello-world"><img src="https://agentmods.dev/badge/skills/jnmetacode/skillet/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/jnmetacode/skillet/hello-world"><img src="https://agentmods.dev/badge/skills/jnmetacode/skillet/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 | $0.00021 | $0.00138 |
| Opus 5.5 | $0.00008 | $0.00055 |
| Sonnet 5.5 | $0.00004 | $0.00028 |
| Haiku 4.5 | $0.00002 | $0.00014 |
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
A minimal reference skill. It exists to demonstrate the SKILL.md format and to
give skillet add ./examples/skills/hello-world something to install.
Instructions
When the user says hello, greet them warmly and tell them skillet is working.
Files
A real skill can include supporting files next to this SKILL.md (scripts, templates, reference data); they are installed together as one folder.
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 · 22 lines · 21 tokens per session scan A 8213d855beaf
hello-world is a skill published in the GitHub repository jnMetaCode/skillet (2 stars, last pushed 2mo ago), licensed MIT. It adds 21 tokens to every session and 138 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-worldjnMetaCode/skillet | Skill | 2 | 2mo ago | MIT | A | 21 | Claude Code, Codex |
| building-agentsericrisco/rsc-harness | Skill | 608 | yesterday | MIT | A | 85 | Claude Code, Codex |
| agent-evalericrisco/rsc-harness | Skill | 608 | yesterday | MIT | A | 79 | Claude Code, Codex |
| writingdamianvtran/local-operator | Skill | 229 | today | MIT | A | 50 | Claude Code, Codex |
| browser-qadamianvtran/local-operator | Skill | 229 | today | MIT | A | 45 | Claude Code, Codex |
| code-reviewdamianvtran/local-operator | Skill | 229 | today | MIT | A | 45 | Claude Code, Codex |
| responding-to-reviewdamianvtran/local-operator | Skill | 229 | today | MIT | A | 46 | Claude Code, Codex |