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 malob/nix-config --skill cancelgit clone --depth 1 https://github.com/malob/nix-configWrote 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/malob/nix-config/cancel)<a href="https://agentmods.dev/skills/malob/nix-config/cancel"><img src="https://agentmods.dev/badge/skills/malob/nix-config/cancel/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/malob/nix-config/cancel"><img src="https://agentmods.dev/badge/skills/malob/nix-config/cancel.svg" alt="Reviewed on agentmods" width="80" 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 | $0.00009 | $0.00050 |
| Opus 5.5 | $0.00004 | $0.00020 |
| Sonnet 5.5 | $0.00002 | $0.00010 |
| Haiku 4.5 | $0.00001 | $0.00005 |
Grade A, and why
cancel 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
Stop any currently playing TTS audio:
killall say 2>/dev/null || true
Confirm the audio has been stopped.
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 · 13 lines · 9 tokens per session scan A e60cd1ab5d8d
cancel is a skill published in the GitHub repository malob/nix-config (462 stars, last pushed 6d ago), licensed MIT. It adds 9 tokens to every session and 50 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.
cancel compared with skills from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| cancelmalob/nix-config | Skill | 462 | 6d ago | MIT | A | 9 | Claude Code |
| restart__pull_requestshunsock/dotfiles | Skill | 10 | 1mo ago | none | A | 159 | Claude Code, Codex |
| validate__japaneseshunsock/dotfiles | Skill | 10 | 1mo ago | none | A | 200 | Claude Code, Codex |
| prepare__issueshunsock/dotfiles | Skill | 10 | 1mo ago | none | A | 145 | Claude Code, Codex |
| write__structured_commentshunsock/dotfiles | Skill | 10 | 1mo ago | none | A | 291 | Claude Code, Codex |
| clean__comment_outshunsock/dotfiles | Skill | 10 | 1mo ago | none | A | 188 | Claude Code, Codex |
| implement__featureshunsock/dotfiles | Skill | 10 | 1mo ago | none | A | 127 | Claude Code, Codex |