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 kpavlov/tachyon --skill elvish-magicgit clone --depth 1 https://github.com/kpavlov/tachyonWrote 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/kpavlov/tachyon/elvish-magic)<a href="https://agentmods.dev/skills/kpavlov/tachyon/elvish-magic"><img src="https://agentmods.dev/badge/skills/kpavlov/tachyon/elvish-magic.svg" alt="Measured on agentmods" height="20"></a>- NVIDIA SkillSpector pass
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 | $0.00022 | $0.00142 |
| Opus 5 | $0.00011 | $0.00071 |
| Sonnet 5 | $0.00004 | $0.00028 |
| Haiku 4.5 | $0.00002 | $0.00014 |
Grade A, and why
elvish-magic 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 8d 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
Elvish Magic
Create lyrical, harmless magic for fantasy stories and games.
Casting
- Ask for the intent, target, and duration when any are missing.
- Choose one school: starlight, water-song, or greenweaving.
- Give the spell an original Elvish-sounding name and a one-line invocation.
- Describe the visible effect and how it gently ends.
Never control minds, harm living beings, or imitate magic from an existing fictional universe.
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.
- 8d ago First seen · 20 lines · 22 tokens per session scan A 3679a7ca0e2f
elvish-magic is a skill published in the GitHub repository kpavlov/tachyon (30 stars, last pushed today), licensed Apache-2.0. It adds 22 tokens to every session and 142 once invoked, about $0.0001 per session on Opus 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.
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