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 ivan-magda/swift-coding-agent --skill examplegit clone --depth 1 https://github.com/ivan-magda/swift-coding-agentWrote 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/ivan-magda/swift-coding-agent/example)<a href="https://agentmods.dev/skills/ivan-magda/swift-coding-agent/example"><img src="https://agentmods.dev/badge/skills/ivan-magda/swift-coding-agent/example/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/ivan-magda/swift-coding-agent/example"><img src="https://agentmods.dev/badge/skills/ivan-magda/swift-coding-agent/example.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 | $0.00010 | $0.00157 |
| Opus 5.5 | $0.00004 | $0.00063 |
| Sonnet 5.5 | $0.00002 | $0.00031 |
| Haiku 4.5 | $0.00001 | $0.00016 |
Grade A, and why
example 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 1mo 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
This is a sample skill file. Skills are stored in skills/{name}/SKILL.md and
provide specialized knowledge that the agent can load on demand via the
load_skill tool.
Frontmatter
Each skill file starts with YAML frontmatter between --- delimiters:
name(optional): defaults to the parent directory namedescription(required): one-line summary shown in the system prompt
Usage
The agent sees skill names and descriptions in its system prompt. When it needs
the full content, it calls load_skill with the skill name. The body below the
frontmatter is returned wrapped in <skill> tags.
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.
- 1mo ago First seen · 22 lines · 10 tokens per session scan A 9313132c5a03
example is a skill published in the GitHub repository ivan-magda/swift-coding-agent (184 stars, last pushed 3mo ago), licensed MIT. It adds 10 tokens to every session and 157 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.
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