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 chinkan/RustFox --skill news-fetchergit clone --depth 1 https://github.com/chinkan/RustFoxWrote 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/chinkan/rustfox/news-fetcher)<a href="https://agentmods.dev/skills/chinkan/rustfox/news-fetcher"><img src="https://agentmods.dev/badge/skills/chinkan/rustfox/news-fetcher/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/chinkan/rustfox/news-fetcher"><img src="https://agentmods.dev/badge/skills/chinkan/rustfox/news-fetcher.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 | $0.00030 | $0.00378 |
| Opus 5 | $0.00015 | $0.00189 |
| Sonnet 5 | $0.00006 | $0.00076 |
| Haiku 4.5 | $0.00003 | $0.00038 |
Grade A, and why
news-fetcher 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 5d 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
News Fetcher
Single job: Query Gmail for Google 快訊 emails and return a list of news items with title and url, date-prioritized.
Gmail query
Use the Gmail MCP tool (mcp_google-workspace_query_gmail_emails) with query:
subject:Google 快訊 newer_than:2d
(Syntax may vary by MCP; use the equivalent that limits to last 2 days and subject containing "Google 快訊".)
Date priority
- Return current date (today) URLs only.
- If there are no results for today, return yesterday's URLs only.
- Do not mix dates in one response.
Use each message's date to filter: first try today; if none, use yesterday.
Per-email steps
For each matching email:
- Get full message (subject, snippet, body if needed).
- Extract the news title (from subject or first line).
- Extract the link (e.g. "Read more" / 快訊 link); normalize to one URL per item.
Output contract
Return only a single block the main agent can parse. No prose before or after.
Use one of:
- JSON array:
[{"title":"...","url":"..."},{"title":"...","url":"..."}] - Or numbered markdown list with title and URL per line, e.g.
1. Title — URL
No commentary. No "Here are the results". Just the list.
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.
- 5d ago First seen · 48 lines · 30 tokens per session scan A aed5969b596a
news-fetcher is a skill published in the GitHub repository chinkan/RustFox (7 stars, last pushed 1mo ago), licensed MIT. It adds 30 tokens to every session and 378 once invoked, about $0.0002 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 2026-09-03.
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