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 hakula139/nixos-config --skill clean-gonegit clone --depth 1 https://github.com/hakula139/nixos-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/hakula139/nixos-config/clean-gone)<a href="https://agentmods.dev/skills/hakula139/nixos-config/clean-gone"><img src="https://agentmods.dev/badge/skills/hakula139/nixos-config/clean-gone/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/hakula139/nixos-config/clean-gone"><img src="https://agentmods.dev/badge/skills/hakula139/nixos-config/clean-gone.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 | $0.00073 | $0.00621 |
| Opus 5 | $0.00036 | $0.00311 |
| Sonnet 5 | $0.00015 | $0.00124 |
| Haiku 4.5 | $0.00007 | $0.00062 |
Grade A, and why
clean-gone 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 yesterday.
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.
The source is not reproduced here
No licence file
A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.
What ships with it
2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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.
- yesterday Changed · +6 lines fbb1d0f43ac9
- 9d ago First seen · 49 lines · 73 tokens per session scan A 6eb33086fd5f
clean-gone is a skill published in the GitHub repository hakula139/nixos-config (5 stars, last pushed today), with no licence file. It adds 73 tokens to every session and 621 once invoked, about $0.0004 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 2026-08-31.
Other skills, from other repositories
gh-cli
Standardize all GitHub work via gh CLI (repos, issues, PRs, reviews, Actions, labels, releases). Trigger on any GitHub URL (incl. deep links like /pull/123, /issues/123.
github-issue
Use when the user wants to start work on a GitHub issue, set up a worktree and development environment, plan the implementation, write tests, and create a PR. Triggers: "start issue", "work on #123", "pick up issue 123", "new issue", or /github-issue [ISSUE].
fj
Forgejo CLI for issues, pull requests, repositories, releases, Actions, organizations, and users on git.natsukium.com. Use whenever a request references git.natsukium.com or a Git remote hosted there; this is the Forgejo counterpart to the gh skill.
ghq
Clone and reuse GitHub/GitLab repositories under a single managed root (ghq root) instead of fetching files one-by-one via gh api/WebFetch or scratch-cloning into /tmp. Use this skill whenever investigating, reading, grepping, or referencing source code from any remote repository — even for a single file. Triggers…
git-commit
How to write a commit message that stays meaningful after the session ends — explain WHY, follow the repository's convention, and never reference conversation-local structure like "Phase 2" or "Task 3". Load this BEFORE running git commit, whenever creating a commit, amending a commit message, or asked to "commit…
gh
GitHub CLI for pull requests, issues, releases, workflows, and repository operations. Use for creating PRs, managing issues, viewing repository information, and accessing GitHub URLs.